File:  [local] / rpl / ChangeLog
Revision 1.281: download - view: text, annotated - select for diffs - revision graph
Tue May 29 07:47:36 2018 UTC (22 months ago) by bertrand
Branches: MAIN
CVS tags: rpl-4_1_28, HEAD
Mise à jour.

    1: * Thu May 29 2018 BERTRAND JoŽl <rpl@systella.fr> rpl-4.1.28 (RPL/2)
    2: - mise ŗ jour de Lapack en 3.8.0;
    3: - mise ŗ jour gťnťrale de RPL/CAS et des utilitaires dans le rťpertoire tools;
    4: - memory corruption is fixed in SPLASH intrinsic;
    5: - remove multiple module rpl_complex from Fortran sources;
    6: - ncurses is upgraded;
    7: - NBRCPUS is added ;
    8: - splash screen is not centered on screen that contains pointer.
    9: * Thu Aug 03 2017 BERTRAND JoŽl <rpl@systella.fr> rpl-4.1.27 (RPL/2)
   10: - DETACH is fixed and now runs as expected;
   11: - motif$ is reborned;
   12: - '->' can now by used in external names;
   13: - sets$ library is done;
   14: - new types can be created in external libraries;
   15: - major bug is fixed in allocation(). When allocation size was null, there
   16: was a buffer overflow (8 bytes);
   17: - new types can be created and managed in modules (see modules/sets for
   18: example).
   19: * Wed Jun 28 2016 BERTRAND JoŽl <rpl@systella.fr> rpl-4.1.26 (RPL/2)
   20: - major bug is fixed in READ (FLOW sockets);
   21: - Lapack is upgraded to 3.7.0;
   22: - OpenSSL is upgraded;
   23: - GSL is upgraded to 2.4;
   24: - file is upgraded to 5.29;
   25: - some modifications are done to buld RPL/2 (and modules built with RPL/C) under
   26: Cygwin (Windows 10, 64 bits);
   27: - some symbols are removed from executable;
   28: - readline is upgraded to 7.0;
   29: - OpenSSL symbols are not exported anymore;
   30: - gnuplot is upgraded to 5.0.6.
   31: * Tue Sep 27 2016 BERTRAND JoŽl <rpl@systella.fr> rpl-4.1.25 (RPL/2)
   32: - ncurses, file, openssl and sqlite are upgraded;
   33: - major bug is fixed in DETACH (race condition and dead lock);
   34: - lot of minor bugs have been fixed in processus management;
   35: - (p)select() is replaced by poll() due to a strange bug in glibc. pselect()
   36: returns a erroneous number of readable devices when max file descriptor is
   37: greater than 1024;
   38: - tools/file-5.25.diff.gz is fixed (against file-5.25 and not 5.11);
   39: - OpenSSL is upgraded and new API is used.
   40: * Tue Mar 01 2016 BERTRAND JoŽl <rpl@systella.fr> rpl-4.1.24 (RPL/2)
   41: - tools are upgraded (xpm, openssl, ncurses, sqlite, file);
   42: - BSD sockets options are fixed;
   43: - RPL/2 splash screen is upgraded;
   44: - gmp is upgraded to 6.1.0;
   45: - sys_realloc() is added in library to allow reallocation ŗ la C in RPL/C
   46: programs;
   47: - reallocate function is added to rplexternals.h;
   48: - GET, GETI, LIST-> and TABLE-> now evaluate symbolic constants instead of
   49: return associated fonctions in stack;
   50: - { e } 1 get now returns e and not E. Same fix with infinity and i symbolic
   51: constants ;
   52: - GET is fixed and now evaluates names when names are not protected:
   53: 4 'X' sto { X } 1 get returns 4 and not X. Same fix for tables;
   54: - --enable-native flag is added to configure script;
   55: - lapack is upgraded to 3.6.0.
   56: * Thu Nov 26 2015 BERTRAND JoŽl <rpl@systella.fr> rpl-4.1.23 (RPL/2)
   57: - Giac is upgraded to 1.2.2 and mpfi is added;
   58: - GSL is upgraded to 2.1;
   59: - major bug is fixed in interruption (mutexes failure);
   60: - minor bug is fixed in evaluation():
   61: << 1 'X' sto { X } 'Y' sto 'Y(1)' eval >> returns 1 and
   62: << 1 'X' sto { 'X' } 'Y' sto 'Y(1)' eval >> only returns 'X'.
   63: Same bugfix for tables;
   64: - 4 'X' sto <[ X ]> returns <[ X ]> in both interpreted and compiled mode.
   65: Before this bugfix, it returned <[ 4 ]> in interpreted mode and <[ X ]>
   66: in compiled mode.
   67: * Wed Sep 16 2015 BERTRAND JoŽl <rpl@systella.fr> rpl-4.1.22 (RPL/2)
   68: - socket options are now forced on socket created by WFSOCK to fix 'KEEP ALIVE'
   69: bug;
   70: - sqlite is upgraded;
   71: - major regressions are fixed in compiler;
   72: - gnuplot is upgraded from 5.0.0 to 5.0.1;
   73: - ncurses is upgraded from 5.9 to 6.0 ;
   74: - major bug is fixed in rpl_malloc(). rpl_malloc(0) crashed with segfault.
   75: * Mon Jun 08 2015 BERTRAND JoŽl <rpl@systella.fr> rpl-4.1.21 (RPL/2)
   76: - nested function options() is removed from instruction_open() as
   77: LLVM/CLANG does not support this kind of function;
   78: - sqlite and ncurses are upgraded;
   79: - all compilation errors are now printed;
   80: - escaped characters are allowed in LOGGER intrinsic;
   81: - 1 -> Y 'Z' now returns undefined implicit name error.
   82: * Mon Feb 19 2015 BERTRAND JoŽl <rpl@systella.fr> rpl-4.1.20 (RPL/2)
   83: - minor bug is fixed in evaluation(). When analyse() is called from
   84: evaluation(), RPL/2 always evaluates compiled expression;
   85: - 1 -> X 'X' can be evaluated ('X' is a name and before last patch, only
   86: algebraic expressions were able to be directly evaluated);
   87: - major regression introduced in 4.1.19 is fixed in parser.
   88: << 1 -> X << exp >> >> returned syntax error;
   89: - compilation() now returns an error if a definition name contains invalid
   90: characters instead of BUG();
   91: - zlib is upgraded;
   92: - sqlite and openssl are upgraded;
   93: - new buffercached allocator is added;
   94: - giac is upgraded to 1.1.4;
   95: - Gnuplot is upgraded to 5.0.0.
   96: * Mon Jan 5 2015 BERTRAND JoŽl <rpl@systella.fr> rpl-4.1.19 (RPL/2)
   97: - EQV is added in algebraic input and output subroutines;
   98: - ncurses and sqlite have been upgraded with last patches;
   99: - openssl is upgraded to 1.0.1j and Gnuplot is upgraded to 4.6.6;
  100: - expression simplification subsystem is rewritten from scratch. Now, it does
  101: not do anything. Only fonctions to convert algebraic expression to and from
  102: q-tree have been written and successfuly tested;
  103: - EQV intrinsic is added;
  104: - major bug is fixed in XOR intrinsic (erroneous truth table with integer
  105: or real arguments);
  106: - parser is upgraded. Now, it is possible to write <[[[3]]]> or {{5}} (without
  107: space) and [[ 3 4 ]]4 catches error;
  108: - major regression is fixed in recherche_type() (complex type);
  109: - shebang paths are modified to be computed by configure script (NetBSD issue);
  110: - ncurses is upgraded.
  111: * Thu Jul 17 2014 BERTRAND JoŽl <rpl@systella.fr> rpl-4.1.18 (RPL/2)
  112: - major regression is fixed in SysV semaphore emulation subsystem (segfault);
  113: - gmp is upgraded;
  114: - ncurses is upgraded;
  115: - empilement_pile_last() is modified to delete argument from current stack if
  116: it cannot save all arguments (to few arguments error _before_ first call
  117: to depilement() by parent routine).
  118: * Wed Apr 23 2014 BERTRAND JoŽl <rpl@systella.fr> rpl-4.1.17 (RPL/2)
  119: - semaphores have been removed from s_signaux as POSIX doesn't assure that
  120: semaphores are synchronized between address spaces without msync();
  121: - sqlite is upgraded;
  122: - OpenSSL is upgraded;
  123: - lapack is upgraded to 3.5.0;
  124: - use of uninitialized variables is avoided in FORALL;
  125: - giac is upgraded;
  126: - units is upgraded;
  127: - OpenSSL, sqlite and gnuplot are upgraded;
  128: - major bug is fixed in both FOR and FORALL (segmentation fault if both
  129: instructions are not followed by a name).
  130: * Fri Nov 28 2013 BERTRAND JoŽl <rpl@systella.fr> rpl-4.1.16 (RPL/2)
  131: - OpenMotif is patched to correctly detect fontconfig;
  132: - sqlite and ncurses are patched;
  133: - rpl.inc is fixed;
  134: - rpl() now sends arguments to RPL/2 subroutine;
  135: - rpl() prototype is fixed (rpl_home is an unsigned char * not an unsigned char
  136: **);
  137: - GSL is upgraded;
  138: - major bug is fixed in READ intrinsic (Unix device).
  139: * Fri Sep 6 2013 BERTRAND JoŽl <rpl@systella.fr> rpl-4.1.15 (RPL/2)
  140: - RGDL and RGDR (ragged left and ragged right) are added;
  141: - major bug is fixed in initialization (segfault). It only occurs when RPL/2
  142: is built with a forced localization;
  143: - EXIT regression is fixed.
  144: * Fri Jun 21 2013 BERTRAND JoŽl <rpl@systella.fr> rpl-4.1.14 (RPL/2)
  145: - number of pipes between process is reduced;
  146: - gnuplot is upgraded;
  147: - libiconv is patched to be built with recent glibc (C11);
  148: - some race conditions have been fixed;
  149: - sqlite is upgraded;
  150: - Major regression is fixed in IFERR/END structure;
  151: - Major regression is fixed in evaluation(). Local variables were exported
  152: to called definitions.
  153: * Mon Apr 1 2013 BERTRAND JoŽl <rpl@systella.fr> rpl-4.1.13 (RPL/2)
  154: - integer overflows have been fixed (NEG, ABS, minus);
  155: - global variables can now be recalled from ATEXIT procedure;
  156: - ATEXIT registered procedure is now executed even if program is stopped by
  157: SIGINT;
  158: - minor bug is fixed in TOKENIZE intrinsic instruction. TOKENIZE did not work on
  159: a copy of input string;
  160: - major bug (segfault) is fixed in liste_variables(). It only occurs
  161: when this function is called with shared variables;
  162: - all internal data are now stored in 64 bits wide integers (even is 32 bits
  163: ABI is selected);
  164: - major bug is fixed in recherche_instruction_suivante(). In some
  165: circumstances, this function can return a spurious error;
  166: - new NATIVE*(*) data format is added. By default, native*(*) is used
  167: to write data without precision loss. It can also be used to write
  168: complex objects like expressions, lists or tables;
  169: - major bug is fixed in formateur(). When INT64_MIN was pushed into stack,
  170: internal value was good but RPL/2 was not able to correctly display
  171: this value. This bug comes from ABS as ABS(INT64_MIN) cannot be represented
  172: in integer. All abs(), fabs() and labs() present in source code have been
  173: checked to avoid this kind of bug;
  174: - unformatted sockets are now usable as unformatted files;
  175: - BACKSPACE now runs on unformatted file;
  176: - major bug is fixed in BACKSPACE that didn't check if '"' characters were
  177: escaped;
  178: - CHARACTER*(n) format now counts escaped characters;
  179: - transliteration is avoid in rpl-core file generation to authorize core
  180: creation even if a transliteration error is caught;
  181: - major bug is fixed in evaluation(). System stack was not correctly
  182: destacked when execution error occurs;
  183: - major bug is fixed in READ (socket interface);
  184: - minor bug is fixed in analyse_flux().
  185: * Wed Feb 27 2013 BERTRAND JoŽl <rpl@systella.fr> rpl-4.1.12 (RPL/2)
  186: - bug is fixed in recherche_type(). { "\"" } was not evaluated as expected
  187: as inner quote was not escaped;
  188: - CIPHER new intrinsic is added to perform key generation, decryption and
  189: encryption;
  190: - CBC-CMAC digest is added;
  191: - HMAC digest is added;
  192: - DIGEST intrinsic is added;
  193: - signal management is fixed to be usable on NetBSD;
  194: - RPL/CAS autoconfiguration is upgraded;
  195: - sqlite, openssl, giac, gmp ave been upgraded;
  196: - SQLITE support is added in SQLQUERY, SQLCONNECT and SQLDISCONNECT.
  197: * Tue Dec 18 2012 BERTRAND JoŽl <rpl@systella.fr> rpl-4.1.11 (RPL/2)
  198: - shared variables are now stored in a tree;
  199: - lapack is upgraded to 3.4.2;
  200: - only giac/src is built in rplcas (giac/Makefile.am is modified);
  201: - gnuplot is upgraded to 4.6.1;
  202: - giac, units and ncurses are upgraded;
  203: - interprocess capabilities are removed when RPL/2 cannot run its initialization
  204: routine to keep operating system as clean as possible;
  205: - sem_wait() has to catch EINTR in thread_surveillance_signaux();
  206: - signal management is rewritten to avoid a strange bug on NetBSD. On NetBSD,
  207: a signal handler can be called within a special thread and not in the
  208: calling thread;
  209: - static variables are now written in a variables tree;
  210: - major bug is fixed in STO intrinsic. STO returns an error when it has
  211: to create a global variable if intrinsic none (default) is set.
  212: * Mon Oct 1 2012 BERTRAND JoŽl <rpl@systella.fr> rpl-4.1.10 (RPL/2)
  213: - FORALL intrinsic is added;
  214: - major bug (deadlock) is fixed in CYCLE. Only occurs when CYCLE is called to
  215: interrupt a loop from a subroutine within a compiled programm;
  216: - workaround to avoid strange bug on slow network is written in READ
  217: intrinsic;
  218: - CRITICAL/END structure is added. When program enters in a critical
  219: section, all other threads of the same process sleep until program leaves
  220: critical section.
  221: * Wed Aug 22 2012 BERTRAND JoŽl <rpl@systella.fr> rpl-4.1.9 (RPL/2)
  222: - giac is upgraded to 0.9.8;
  223: - ncurses is patched with last patches;
  224: - Sqlite is upgraded to 3.7.13;
  225: - Units is upgraded to 1.89e;
  226: - Lapack is upgraded to 3.4.1;
  227: - LENGTH*(...) format is fixed;
  228: - some patches have been added to build RPL/2 on NetBSD;
  229: - escaped characters are fixed in READ and WRITE operations;
  230: - major bug is fixed in READ intrinsic (on socket). End of file condition
  231: was randomly caught on slow network;
  232: - stdin can now handle espaced characters strings in SYSEVAL;
  233: - --with-gcc-version is added to configure script to force gcc version as
  234: gfortran 4.7 is broken and crashes with segmentation fault.
  235: * Mon May 21 2012 BERTRAND JoŽl <rpl@systella.fr> rpl-4.1.8 (RPL/2)
  236: - POLL now accepts more than one descriptor and returns informations
  237: about pollable descriptors;
  238: - SMPHRTRYDECR now takes timeout value instead of returning when semaphore
  239: cannot by decremented;
  240: - signal handlers are fixed to avoid spurious and very rare deadlocks;
  241: - pari is upgraded;
  242: - force CFLAGS for tools/file (-O2 -g) to avoid mmap() error;
  243: - giac, gmp and mpfr have been upgraded.
  244: * Fri Apr 13 2012 BERTRAND JoŽl <rpl@systella.fr> rpl-4.1.7 (RPL/2)
  245: - double quote is escaped in INPUT and PROMPT intrinsic functions;
  246: - error is returned (instead of warning) when unavailable intrinsic function
  247: is called;
  248: - lot of minor bugs have been fixed;
  249: - ncurses and file are patched;
  250: - RPL/2 can now be cross compiled (until .deb archive generation);
  251: - all table, vector and matrix dimensions are now treated as unsigned long;
  252: - recherche_type() function is modified to use cached memory;
  253: - gnuplot is upgraded to 4.6.0.
  254: * Wed Feb 29 2012 BERTRAND JoŽl <rpl@systella.fr> rpl-4.1.6 (RPL/2)
  255: - serial line support is added to OPEN (STTY options);
  256: - multiline inputs are allowed:
  257: schroedinger:[~/cvs/build/src] > rpl -is
  258: +++RPL/2 (R) version 4.1.6 (Monday 01/30/12, 10:20:38 CET)
  259: +++Copyright (C) 1989 ŗ 2011, 2012 BERTRAND JoŽl
  260: 
  261: +++Ce logiciel est un logiciel libre sans aucune garantie de fonctionnement.
  262: +++Pour plus de dťtails, utilisez la commande 'warranty'.
  263: 
  264: RPL/2> [[ 1 2 3 ]
  265: + 001> [ 4 5 6 ]
  266: + 002> [ 7 8 9 ]]
  267: 
  268: 1: [[ 1 2 3 ]
  269:     [ 4 5 6 ]
  270:     [ 7 8 9 ]]
  271: RPL/2> [[ 1 23 ]
  272: + 001> [ 4 5 6 ]]
  273: +++Erreur : Erreur de syntaxe [19267]
  274: 
  275: 1: [[ 1 2 3 ]
  276:     [ 4 5 6 ]
  277:     [ 7 8 9 ]]
  278: RPL/2> [ 1 2 3
  279: + 001> annulation
  280: RPL/2> abort
  281: 
  282: 'annulation' is done by pressing CTRL+g, and abort by CTRL+d on empty line.
  283: * Tue Jan 17 2012 BERTRAND JoŽl <rpl@systella.fr> rpl-4.1.5 (RPL/2)
  284: - ncurses, sqlite and openssl have been upgraded;
  285: - major bug is fixed in ** (integer integer **) when first argument is equal to
  286: -1;
  287: - major bug is fixed in signal management. With new signal management, thread or
  288: process were not signalized anymore by POSIX signals. If a thread or a process
  289: was sleeping, it was not interrupted;
  290: - minor bug is fixed in OPEN intrinsic. Now, when a socket is open, its default
  291: adress is set to 0.0.0.0;
  292: - new rule is added to main makefile (make debian) to build deb package;
  293: - new benchmark (Xeon W3520 @ 2.67GHz) :
  294: schroedinger:[~/cvs/bench] > ./bench.rpl 
  295: +++RPL/2 (R) version 4.1.5 (Friday 12/02/11, 12:18:23 CET)
  296: +++Copyright (C) 1989 ŗ 2010, 2011 BERTRAND JoŽl
  297: Number of scalar operations per second and per core : 3809121.83444626
  298: schroedinger:[~/cvs/bench] > 
  299: - recherche_type() did not convert huge integer in real. Now,
  300: 18446744072742037448 is converted into real as value cannot be stored in
  301: RPL/2 integer type;
  302: - WFSOCK is modified to handle unconnected sockets;
  303: - REGEX is added;
  304: - RESTART is added (execvp() on main RPL/2 process);
  305: - copie_objet() now returns same MTX (struct_mutex) even if caller wait for
  306: a real copy. Now, struct_mutex contains locks owner. On Linux or Solaris (for
  307: example), it is possible to lock mutex from a thread and unlock the same mutex
  308: from another thread. On NetBSD, system crashes.
  309: * Mon Nov 21 2011 BERTRAND JoŽl <rpl@systella.fr> rpl-4.1.4 (RPL/2)
  310: - rplcas/@GIAC@/src/config.h is removed to avoid compilation bug. config.h
  311: written by configure script was overloaded by src/config.h;
  312: - lot of compilation warnings have been fixed;
  313: - lapack and blas have been upgraded;
  314: - ncurses, sqlite and giac have been upgraded;
  315: - LCASE, UCASE, POS and SUB now handle escape characters;
  316: - major bug is fixed in INT (numerical integration was unusable as type
  317: checking condition was always false);
  318: - SIZE, CHR and NUM can handle strings with escape characters;
  319: - lot of patches for Android and OS/2;
  320: - configure.ac is improved to remove operating systems special cases.
  321: - major bug is fixed in DRWS (SDAT was not used...);
  322: - lists, and integer, real and complex numbers can now be written in
  323: unformatted files;
  324: - rplawk makefile is fixed to avoid build process bug. Warning, with these
  325: modifications, sources tree has to be writable.
  326: * Wed Sep 21 2011 BERTRAND JoŽl <rpl@systella.fr> rpl-4.1.3 (RPL/2)
  327: - Linux port, MacOS X port and xBSD ports are tested and fully fonctionnal;
  328: - libsigsegv is added;
  329: - OpenMotif is added;
  330: - all internal signal handlers are rewritten to avoid POSIX signal usage
  331: and to be async signal safe;
  332: - SIGSEGV signal handler is rewritten;
  333: - SREV intrinsic is added.
  334: * Tue Aug 9 2011 BERTRAND JoŽl <rpl@systella.fr> rpl-4.1.2 (RPL/2)
  335: - I have fixed a lot of bugs in gpp preprocessor (and sent gpp 3.0 to official
  336: gpp developer). Now, macros like
  337: 
  338:     #define foo foo bar
  339: 
  340: is evaluated without recursion. gpp 2.24 crashed on stack overflow.
  341: - LIMIT is added;
  342: - Now, undefined values like 'infinity/infinity' are computed. Result is
  343: undef constant;
  344: - infinity constant is added.
  345: * Sun Jul 24 2011 BERTRAND JoŽl <rpl@systella.fr> rpl-4.1.1 (RPL/2)
  346: - VERSION now returns OS type, architecture and ABI;
  347: - configure script is updated. New flags :
  348:     --with-32bits-abi
  349:     --with-64bits-abi
  350:     --with-rplcas
  351: Please not that RPL/CAS is not built by default;
  352: - Lapack is upgraded to 3.3.1.
  353: * Mon Jun 27 2011 BERTRAND JoŽl <rpl@systella.fr> rpl-4.1.0 (RPL/2)
  354: - New stable release.
  355: * Fri Jun 22 2011 BERTRAND JoŽl <rpl@systella.fr> rpl-4.1.0.prerelease.4 (RPL/2)
  356: - some minor changes have been done in instruction_int() to accept new argument
  357: types;
  358: - interface_cas.cpp now catchs exceptions returned by giac.
  359: * Fri Jun 24 2011 BERTRAND JoŽl <rpl@systella.fr> rpl-4.1.0.prerelease.3 (RPL/2)
  360: - INT intrinsic now uses RPLCAS to compute symbolic integration;
  361: - minor bug is fixed in INTRINSIC function. Now, this function gives same
  362: result with ou without -p switch.
  363: * Wed Jun 22 2011 BERTRAND JoŽl <rpl@systella.fr> rpl-4.1.0.prerelease.2 (RPL/2)
  364: - memory caching is added to new variable tree.
  365: * Tue Jun 21 2011 BERTRAND JoŽl <rpl@systella.fr> rpl-4.1.0.prerelease.1 (RPL/2)
  366: - SPAWN is now usable with new variable management;
  367: - MEM is rewritten;
  368: - PRUSR is rewritten;
  369: - merge 4_0 branch into HEAD;
  370: - CLUSR is rewritten;
  371: - -p flag is now usable;
  372: - New benchmark:
  373: cauchy:[~/rpl/bench] > ./bench.rpl 
  374: +++RPL/2 (R) version 4.1.0.prerelease.1 (lundi 20/06/2011, 23:00:45 CEST)
  375: +++Copyright (C) 1989 ŗ 2010, 2011 BERTRAND JoŽl
  376: Number of scalar operations per second and per core : 2625369.22710792
  377: * Mon Jun 20 2011 BERTRAND JoŽl <rpl@systella.fr> rpl-4.1.0.prerelease.0 (RPL/2)
  378: - New variable management is written. Please note that -p flag does not work
  379: and all multithread/multitask capabilities have been disabled until this
  380: new subsystem shall be validated.
  381: * Thu May 09 2011 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.23 (RPL/2)
  382: - major bug is fixed in STD format (1E7 sq prints 1);
  383: - major bug is fixed in READ intrinsic (socket). This bug was introduced
  384: by a new feature in glibc.
  385: * Thu Apr 14 2011 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.22 (RPL/2)
  386: - by default, RPL/2 uses "NONE" IMPLICIT when it's started in batch mode and
  387: "ALL" IMPLICIT when it runs in interactive mode;
  388: - when "NONE" IMPLICIT is set, STO intrinsic raises an error when it is used
  389: to create or modify a global variable. Now, with "NONE" IMPLICIT, you have
  390: to use SAVE to manipulate global variables;
  391: - replace erroneous TAB by TBL in evaluation() and formateur_fichier()
  392: subroutines;
  393: - fix major memory access violation in evaluation subroutine. Only occurs
  394: when 'X(i,j)' is evaluated on a matrix and when (i,j) points out of bounds;
  395: - fix major bug in evaluation subroutine. 'X(i)' returns execution error
  396: when X was a vector or a table.
  397: * Sun Apr 04 2011 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.21 (RPL/2)
  398: - Gnuplot is upgraded;
  399: - flag 34 is now used to enable or disable control character evaluation;
  400: - major bug is fixed in P->R intrinsic function when argument type is
  401: complex and degree mode is set;
  402: - L->T and T->L are added;
  403: - OLD filetype is fixed;
  404: - FLOW socket support is added;
  405: - FLOW sequential files are added;
  406: - new escape sequence is added to handle flow files (\x + hexadecimal code).
  407: Known escape sequences are \", \b, \n, \t, \x?? and \\.
  408: * Sun Mar 06 2011 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.20 (RPL/2)
  409: - Ncurses is upgraded to 5.8;
  410: - ALARM is fixed by filling isdst field;
  411: - catch ECONNRESET in write intrinsic to return an execution error instead of
  412: system one;
  413: - fix a typo in HELP intrinsic;
  414: - Openssl is upgraded to 1.0.0d, sqlite to 3.7.5 and readline to 6.2;
  415: - Lapack is upgraded to 3.3.0;
  416: - libmtmalloc is now default Solaris allocator;
  417: - ncurses is upgraded;
  418: - regression introduced by 4.0.19 is fixed in signal management.
  419: Interruption1() could be called from itself and raises bus error (on sparc) or
  420: segmentation fault;
  421: - sqlite is upgraded to 3.7.4;
  422: - OpenSSL is upgraded to 1.0.0c;
  423: - syntax error is correctly checked ( (2+,0) does not crash RPL/2 anymore);
  424: - characters are tested in recherche_type() to avoid names like '12+';
  425: - gnuplot is upgraded to 4.4.2 due to major bugs.
  426: * Thu Sep 23 2010 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.19 (RPL/2)
  427: - due to a very strange bug I've only seen on Solaris, ptmalloc3 is removed.
  428: Solaris libresolv randomly uses ptmalloc3 and system allocator and makes heap
  429: corruption. As internal memory management have been improved, a best fit
  430: allocator like ptmalloc3 is not required anymore;
  431: - gnuplot is upgraded to 4.4.1;
  432: - deadlock is fixed in signal handlers: same mutex was used in standard
  433: subroutines (without protected sections by sigprocmask() or pthread_sigmask())
  434: and signal handlers. A new signal handler specific mutex is added;
  435: - minor bug is fixed in evaluation() subroutine. In { X 0 PI }, PI is a function
  436: that has to be evaluated by ->NUM;
  437: - rplfile build process is modify to be sure that rplfile is not modified
  438: after rpl build stage (to be sure that rplfile checksum is not modified after
  439: rpl compilation);
  440: - AWK is replaced by rplawk. rplawk is original awk written by Brian Kernighan,
  441: modified to remove yacc code and renamed;
  442: - some workarounds have been written to not use buggy klibc SystemV IPCS.
  443: ABORT now works on eComStation;
  444: - sqlite is upgraded to 3.7.2;
  445: - bug is fixed in software interrupts. When both process have different PID,
  446: parent process was not interrupted if it is not group master process. To fix
  447: this bug, SIGINJECT signal is not sent by child process but by control thread
  448: in parent process;
  449: - minor bug is fixed in data injection (POKE) that does not work as expected
  450: when child process is protected by NRPROC.
  451: * Thu Aug 26 2010 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.18 (RPL/2)
  452: - --enable-sysv-sems is added to configure script to use SystemV semaphores
  453: functions instead of POSIX functions. This function is disabled or forced on
  454: systems that does not provide correct POSIX or SysV semaphores subsystem;
  455: - a dirty but not quick patch is written to workaround broken siginfo
  456: structures. This patch has been successfully tested. It uses a segment of
  457: shared memory (Posix or SysV) and some semaphores (Posix or SysV) by process
  458: (Unix PID);
  459: - some OpenBSD's hacks are added;
  460: - broken siginfo->si_pid field is now checked by configure script;
  461: - SWI now sends SIGCONT to interrupted process to start interrupt without delay;
  462: - random generator is cloned by SPAWN;
  463: - in transliteration subroutine : '\r' is added after all '\n' in OS/2 port;
  464: - getaddrinfo is hardcoded when host system does not provide getaddrinfo
  465: or freeaddrinfo;
  466: - RPL/2 can now use SystemV semaphores when POSIX semaphores are unavailable;
  467: - major bug is fixed in CHR intrinsic when obtained character is not printable;
  468: - Lapack is upgraded to 3.2.2;
  469: - OS/2 (eComStation 2.0 with EMX 0.9d) support is added;
  470: - TOKENIZE is now able to convert escape sequences;
  471: - ATPOKE and CLRATPOKE new intrinsics are added;
  472: - --enable-full-static configure flag is added. With this flag, mysql and
  473: postgresql libraries are statically linked in rpl executable;
  474: - units Makefile is modified to avoid readline and ncurses usages;
  475: - sqlite is upgraded to 3.7.0.1;
  476: - units is upgraded to 1.88;
  477: - another major bug is fixed in the same variable creation subroutine.
  478: Level 0 and 1 variables adresses were swapped when a global variable masked
  479: a name of RPL/2 routine;
  480: - major bug is fixed in global variable creation subroutine. When a global
  481: variable was created and when a local variable existed with the same name,
  482: computed address of global variable was wrong;
  483: - src/Makefile.am is modified to avoid a bug on several systems. libptmalloc3
  484: is forced in front of all libraries.
  485: * Tue Jul 13 2010 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.17 (RPL/2)
  486: - BACKTRACE intrinsic is added;
  487: - major bug is fixed in SELECT/DEFAULT/END conditional structure. Only occurs
  488: when this structure is included in IFERR/THEN/END structure and when an error is
  489: caught;
  490: - major bug is fixed in analyse() subroutine. When evaluation() returned error
  491: in a compiled program, analyse() caught this error twice and randomly aborted
  492: with a segmentation error;
  493: - TRIM and TOKENIZE replace both '\n' and '\t' by regular spaces;
  494: - ATEXIT subroutine begins with an implicit CSTOP to avoid multiple stop
  495: signals;
  496: - memory leak is fixed in ROW+. It only occurs when a row is added to an empty
  497: matrix.
  498: * Thu Jun 24 2010 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.16 (RPL/2)
  499: - minor bug is fixed in evaluation() subroutine. With this patch, same program
  500: returns same result with or without -p flag;
  501: - ncurses 5.7 is upgraded to 20100619;
  502: - openssl is upgraded to 1.0.0a;
  503: - interrupt stacks are now FIFO instead of LIFO;
  504: - debug memory allocation subroutines are improved to run in multithreaded
  505: programs;
  506: - some memory leaks are fixed in process management (SPAWN and DETACH);
  507: - version verification is added to shared objects;
  508: - -D_GNU_SOURCE is added to ptmalloc3 makefile to avoid a major bug on 64 bits
  509: linux (false mremap() prototype);
  510: - major bug is fixed in rpliconv. getc() returns an int, not a unsigned char.
  511: * Sun May 23 2010 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.15 (RPL/2)
  512: - all '-' are replaced by '_' in random generator list;
  513: - minor memory leak is fixed in OPEN intrinsic (socket);
  514: - major bug is fixed in IFERR structure. Only occurs in compiled program;
  515: - major bug is fixed in copie_objet() and liberation(). Only concerns
  516: format in FCH (file descriptor) and SCK (socket descriptor);
  517: - debug routines are improved;
  518: - PROCID is added;
  519: - MEMLOCK and MEMUNLOCK are added. MEMLOCK forces a process to remain in memory
  520: and to not use swap;
  521: - major bug is fixed in sql support. SQL connections were closed in all chield
  522: process;
  523: - standard allocator (malloc()/free()) is replaced by ptmalloc3 due to some bugs
  524: discovered in Solaris thread safe allocators (libmalloc and libumem) that
  525: are first fit class allocators. Solaris libmtmalloc works better and is
  526: a best fit class allocator but its performance is poor than ptmalloc3
  527: performance;
  528: - major bug is fixed in ROW+ intrinsic (new row was not added where it
  529: should);
  530: - minor bugs are fixed in interruptions.c (semaphores values when error is
  531: caught);
  532: - major bug is fixed in STOP intrinsic. STOP was unable to stop any process
  533: created by SPAWN;
  534: - SIGFABORT is added. When process receives SIGFSTOP, it tries to execute
  535: ATEXIT. If it receives SIGFABORT, it does not;
  536: - ONEXIT is renamed in ATEXIT;
  537: - ONEXIT new intrinsic is added.
  538: * Wed Apr 21 2010 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.14 (RPL/2)
  539: - major bug is fixed in static and shared variables initialization subroutine.
  540: This bug only occurs when RPL/2 tries to create a shared or static variable
  541: from an expression;
  542: - major bug is fixed in copie_etat_processus(). A field that contains
  543: information about shared variable was not copied to new processus structure;
  544: - some little memory leaks are fixed in evaluation(), recherche_type() and
  545: sequenceur(). They only occured when syntax error were caught;
  546: - IMPLICIT causes execution error instead system error;
  547: - Hurd support is improved but currently broken because Hurd does not support
  548: SIG_INFO. Work in progress;
  549: - OpenBSD specific support is removed from sources;
  550: - support for Mac OS X and Windows/Cygwin is added.
  551: * Wed Apr 07 2010 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.13 (RPL/2)
  552: - implicit names can now be disabled by new IMPLICIT intrinsic:
  553: cauchy:[~/cvs/test] > cat implicit.rpl
  554: #!/usr/local/bin/rpl -sp
  555: TEST
  556: <<
  557:     "none" implicit
  558: 
  559:     1 -> Z
  560:     <<
  561:         Z disp
  562:         'Z' disp
  563:     >>
  564: 
  565:     'Z' disp
  566:     Z disp // Undefined
  567: >>
  568: 
  569: cauchy:[~/cvs/test] > LANG=C ./implicit.rpl
  570: +++RPL/2 (R) version 4.0.13 (Wednesday 04/07/10, 13:57:44 CEST)
  571: +++Copyright (C) 1989 to 2009, 2010 BERTRAND Joel
  572: 1
  573: 'Z'
  574: 'Z'
  575: +++System : Invalid implicit name [6631]
  576: cauchy:[~/cvs/test] > 
  577: 
  578: RPL/2 aborts because the last Z is undefined and not protected by ''.
  579: By default, implicit is set to "ALL";
  580: - sqlite is upgraded to 3.6.23.1;
  581: - openssl is upgraded to 1.0.0;
  582: - major bug is fixed in RETURN intrinsic. It only occurs in evaluation
  583: subroutine;
  584: - table variable can now be sorted by SORT;
  585: - some regressions between libtool 1.x and 2.x are fixed by workarouds in
  586: Makefiles;
  587: - -a command line option analyzes program (structure and syntax) and
  588: sends preprocessor output to standard output. This option is used by
  589: rplc (RPL/2 compiler).
  590: * Tue Mar 09 2010 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.12 (RPL/2)
  591: - in formatted file, string format returned a variable length string even if
  592: format was 'CHARACTER*(n)' (n characters string). Now, 'CHARACTER*(*)' returns
  593: a variable length string and 'CHARACTER*(n)' a fixed length string;
  594: - keyed access files support is added. Currently, only formatted files are
  595: supported;
  596: - direct access files support is added. Currenlty, these files can only be used
  597: in formatted mode;
  598: - virtual variables are now writte in UTF-8 and all special characters
  599: in string are escaped;
  600: - all formatted files are now converted into UTF-8;
  601: - all file and unix socket names created by RPL/2 are now UTF-8 compliant;
  602: - RPL/2 tools (rpliconv, rplfile, rplpp and rplconvert) are now checked before
  603: each execution (md5 and sha1 sums) to enhance security. If one of these tools
  604: have been modified between RPL/2 compilation and current execution, RPL/2 aborts
  605: on a non recoverable system error;
  606: - openssl and sqlite3 libraries are added;
  607: - RPL_HOME env variable is added. When RPL/2 is called from librpl, this
  608: variable indicates RPL/2 root directory. If it is not set, root path
  609: is given by configure script (d_exec_path);
  610: * Thu Mar 03 2010 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.11 (RPL/2)
  611: - configure.in and makefile.am's are modified to add Cygwin support. Interix
  612: support is broken;
  613: - memory leak is fixed in recherche_type();
  614: - TeX files are now written in UTF-8 even default locale differs;
  615: - minor bug is fixed in ->STR (escaped characters);
  616: - minor bug is fixed in ->Q intrinsic. Resultat is returned as integer
  617: fraction intead real one;
  618: - SIGN now returns (0,0) instead (nan,nan) when complex argument is null;
  619: - Makefile.am are modified to authorize parallel builds;
  620: - minor bug is fixed in CR intrinsic. CR sends a carriage return to printer
  621: and writes warning to standard output;
  622: * Wed Feb 10 2010 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.10 (RPL/2)
  623: - escape codes are now converted in formateur(), not in recherche_type() to
  624: avoid a minor bug in EDIT and VISIT intrinsics;
  625: - minor bug is fixed in formateur_reel();
  626: - file-5.03 is patched to avoid bus error on systems that require memory
  627: alignment;
  628: - minor bug is fixed in evaluation(). Error returned by RPL/C external functions
  629: were able to be avoided by evaluation routine.
  630: * Tue Jan 26 2010 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.9 (RPL/2)
  631: - New benchmark on same hardware than old one :
  632: cauchy:[~/rpl/bench] > ./bench.rpl 
  633: +++RPL/2 (R) version 4.0.9 (samedi 23/01/2010, 18:06:08 CET)
  634: +++Copyright (C) 1989 ŗ 2009, 2010 BERTRAND JoŽl
  635: Number of scalar operations per second and per core : 2383016
  636: 
  637: - PULPRFL does not abort on BUG() but on execution error;
  638: - TRIM, REPL and TOKENIZE are added;
  639: - sockets options are now set before bind();
  640: - shutdown() is added to all connected sockets;
  641: - minor bug is fixed in SUB intrinsic (segfault when SUB is called with
  642: list argument and inexistant elements).
  643: * Fri Jan 08 2010 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.8 (RPL/2)
  644: - minor bug is fixed in DAEMON intrinsic. When a program was daemonized, all
  645: signals sent to main process were not caught because DAEMON did not replace
  646: old pid by new one;
  647: - major bug is fixed in IFERR/THEN/ELSE/END. Only occurs in expression
  648: evaluation when an error is reported from a subroutine in another subroutine.
  649: For example, error was not caught in following program when it is executed with
  650: -p option :
  651:     TEST << iferr TEST2 then end >>
  652:     TEST2 << 0 inv >>
  653: - major bug is fixed in variable management. Some local variables were
  654: seen as global ones;
  655: - major bug is fixed in rplcore. Rplcore entered in dead lock when
  656: script file contains a multibyte character;
  657: - IN intrinsic is added;
  658: - major bug is fixed in SAME intrinsic : << 1 >> DUP SAME and 'E' DUP SAME
  659: returned false ;
  660: - major bug is fixed in RETURN intrinsic. It only occurs in compiled
  661: programs;
  662: - major bug is fixed in NEG intrinsic. NEG did not make a copy of its arguments;
  663: - regression is fixed in compilation(). "\\" was analysed as '"' '\' '\"' and
  664: strings were never closed;
  665: - some bugs have been fixed in file management;
  666: - RPL/2 can now be run on EBCDIC systems (OS/390);
  667: - major bug is fixed in -A command line option (NULL character is missing);
  668: - minor bug is fixed in rpliconv and RECODE intrinsic. All transliterations are
  669: made by blocks (1024 bytes). When an incomplete multibyte sequence is
  670: encountered at end of block, subroutine aborts with an execution error;
  671: - major bug is fixed in OPEN (TCP/IPv4 sockets).
  672: * Mon Nov 30 2009 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.7 (RPL/2)
  673: - DISP now locks stdout;
  674: - rpliconv is added to replace standard iconv provided by operating system.
  675: Indeed, conversion between different encodages requires transliteration
  676: that is not offered by some iconv utility;
  677: - CURRENC and RECODE intrinsics have been written to allow strings conversions;
  678: - bug is fixed in SYSEVAL. When execvp() returns (for example when arg[0] can
  679: not be found), SYSEVAL enters in a dead lock;
  680: - fprintf is replaced by some functions that allow transliterations between
  681: locales;
  682: - '"' can now be used in strings ("\"");
  683: - iconv is called with -c in preprocessor stage. It is done to write
  684: CGI scripts with RPL/2 because locale charset is set to ANSI_X3.4-1968;
  685: - double free is fixed in liberation() (type SQL, only occurs when locale is
  686: set);
  687: - LOCALIZATION, UCASE and LCASE are added;
  688: - major bug is fixed in EXIT intrinsic that was able to return a false
  689: execution error in compiled scripts (only in DO/UNTIL and REPEAT/WHILE loops);
  690: - major bug is fixed in wrapper_instruction_intrinseque(). When intrinsic() was
  691: used in onLoading from shared library, USE was pushed on stack as algebraic
  692: expression;
  693: - libiconv is upgraded to 1.13.1;
  694: - gnuplot is upgraded to 4.2.6;
  695: - gsl is upgraded to 1.13.
  696: * Mon Sep 28 2009 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.6 (RPL/2)
  697: - pipe() is overwritten by a macro to avoid a system error. Communication
  698: between process are done with pipes and these pipes are managed by a
  699: specific asynchrone thread. If a script try to create more threads than
  700: management thread can destroy, you can quickly achieve maximum number of
  701: opened files and pipe() shall return a system error. This macro tries to create
  702: pipes. If pipe() function returns an error, macro waits and retries. If
  703: number of retries is greater than a hardcoded value, macro returns an error;
  704: - major bug (deadlock) is fixed in process and thread management. I hope
  705: this bug shall be the last one;
  706: - major bug is fixed in DET intrinsic (determinant was computed without LU
  707: diagonalization);
  708: - SWAPCNTXT is added;
  709: - minor bug is fixed in Makefile.am (licences rule).
  710: * Wed Sep 09 2009 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.5 (RPL/2)
  711: - some bugfixes are added in process management;
  712: - all process management is rewritten to avoid usage of defunct process
  713: or thread number;
  714: - new major bug is fixed in interruptions.c. Sometimes, when retrait_thread()
  715: was called before a pending interruption5 (SIGFSTOP), signal handler uses
  716: a freed semaphore and corrupts heap;
  717: - CLRERR is added to erase previous errors;
  718: - ERRN and ERRM return exception message and number;
  719: - major bug is fixed in interruptions.c. All signal are now bufferised
  720: when semaphore_liste_threads is null to avoid deadlock. This bug only
  721: occured when STOP was sent to a dying thread or process (when this thread or
  722: process was running retrait_thread());
  723: - matrix rank is computed before matrix inversion;
  724: - file locks are added to stdin and stdout. stderr is not locked because
  725: all messages written by signal handlers are sent to stderr;
  726: - configure.in script is modified to test gcc version and avoid a bug in
  727: gcc older than 4.4;
  728: - some benchmarks have been done :
  729: 
  730: cauchy:[~/rpl/bench] > ./bench.rpl 
  731: +++RPL/2 (R) version 4.0.5 (mardi 04/08/2009, 18:23:07 CEST)
  732: +++Copyright (C) 1989 ŗ 2008, 2009 BERTRAND JoŽl
  733: Number of scalar operations per second and per core : 2109867
  734: 
  735: Workstation :
  736: cauchy:[~/rpl/build] > uname -a
  737: Linux cauchy 2.6.30.1 #1 SMP PREEMPT Thu Jul 16 09:49:46 2009 x86_64 GNU/Linux
  738: cauchy:[~/rpl/build] > cat /proc/cpuinfo | grep "model name"
  739: model name      : Intel(R) Core(TM)2 Duo CPU     T7500  @ 2.20GHz
  740: model name      : Intel(R) Core(TM)2 Duo CPU     T7500  @ 2.20GHz
  741: cauchy:[~/rpl/build] > gfortran -v 2>&1 | grep "gcc version"
  742: gcc version 4.3.3 (Debian 4.3.3-14) 
  743: cauchy:[~/rpl/build] >
  744: 
  745: - SVL and SVD are added;
  746: - COND and RANK are added;
  747: - DIAG-> and ->DIAG are added;
  748: - major bug is fixed in DET intrinsic. DET is rewritten to avoid usage of
  749: eigenvalues. In a first time, matrix rank is estimated to force determinant
  750: to zero if matrix is rank deficient. If not, a PLU decomposition is done to
  751: compute determinant;
  752: - QR matrix decomposition is added;
  753: - LQ matrix decomposition is added;
  754: - Fortran90 files are rewritten to use Fortran2003 bind(C) statement and
  755: Fortran preprocessor;
  756: - default compilation options are now -Wall -Wextra -Wno-pointer-sign
  757: -Wno-unused-parameter;
  758: - all mathematical exceptions are now signaled by exceptions instead of
  759: execution error;
  760: - minor bug is fixed in both CSTOP and RSTOP intrinsics. Without this fix, you
  761: can call twice CSTOP without RSTOP;
  762: - named semaphore support is added (CRSMPHR, CLRSMPHR, SMHRDECR, SMPHRINCR,
  763: SMPHRTRYDECR, SMPHGETV).
  764: * Fri Jul 24 2009 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.4 (RPL/2)
  765: - semaphore is added in interruptions.c to avoid segmentation fault when STOP
  766: signal is sent to a dying thread. Some mutexes are replaced by semaphores too
  767: to be used in signal handlers;
  768: - major bug (memory corruption) is fixed in COL- intrinsic;
  769: - minor bug is fixed in ALARM and WAIT. These temporisations stopped when a
  770: software interrupt was caught;
  771: - rplpp man page is added.
  772: * Fri Jul 17 2009 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.3 (RPL/2)
  773: - minor bug is fixed in WRITE (SIGPIPE is ignored to catch error without
  774: process termination);
  775: - major bug is fixed in FUSE intrinsic (FUSE kills itself and do not kill
  776: its parent);
  777: - a mutex to protect fork() syscall is added;
  778: - all mutexes are unlocked after fork() in DETACH;
  779: - minor bug (double free corruption) is fixed in CLOSE intrinsic;
  780: - major bug is fixed in lecture_pipe when a nullified list is sent into a pipe;
  781: - WORKDIR intrinsic is added;
  782: - Level 0 variables are shared between all threads without copy. Indeed,
  783: there variables are not modifiable and only contains static user definitions;
  784: - branches prediction is added in THEN, ELSE, ELSEIF and REPEAT intrinsics;
  785: - FORTRAN 77 file management subroutines are rewritten in pure C due to
  786: FORTRAN string management. C/FORTRAN 77 string interfaces are broken
  787: in some cases (gcc/gfortran/libc/OS and arch conjonction);
  788: - a memory leak is fixed in REMOVE intrinsic;
  789: - major bug is fixed in MySQL driver (segfault due to a bug in mysql_init()
  790: and due to a libmysqlclient that is not thread safe).
  791: * Wen Jun 10 2009 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.2 (RPL/2)
  792: - new enhanced allocator is written for regular variables, static variables and
  793: shared variables;
  794: - major bug is fixed in src/interruptions.c. This file did not compile
  795: when SQL support was not enabled;
  796: - new allocator is written for system stack and last stack;
  797: - --enable-profile flag is added to configure script. When this flag is
  798: enabled, rpl is built with -pg option;
  799: - SIGFSTP (from Solaris'TERMIO) is caught. On Solaris 10, all process receive
  800: SIGFSTP (with a nullified siginfo structure) instead of SIGHUP when control
  801: process is killed;
  802: - abs() macro is modified to avoid multiple evaluation. Your C compiler has to
  803: know typeof() intrinsic function. This function is not standard but exists
  804: under Sun Studio, gcc, and maybe some others compilers. If this function does
  805: not exist on your compiler, you can change its definition by old one in
  806: src/rpl.h;
  807: - fflush() can now be interrupted by signal (SunOS);
  808: - fflush(NULL) is called before all fork() occurrences;
  809: - generators returned by RDGN help are sorted;
  810: - Lapack is now 3.2.1.
  811: * Mon May 18 2009 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.1 (RPL/2)
  812: - bug is fixed in src/generateurs_aleatoires.awk. It only occurs when RPL/2 is
  813: built under Solaris.
  814: * Wed May 5 2009 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.0 (RPL/2)
  815: - major bug is fixed in matrix inversion (due to an inversion between pointer
  816: and object copies);
  817: - RDGN is added to use some different random number generators. See HELP RDGN;
  818: - code analysis is rewritten from scratch to be more efficient and mode
  819: expandable;
  820: - minor bug (segfault in interruption1) is fixed. It only occurs on Solaris
  821: that can returns a nullified siginfo pointer when SIGINT is sent by kernel
  822: keyboard driver;
  823: - gnuplot is now 4.2.5;
  824: - readline is upgraded to 6.0;
  825: - file is upgraded to 5.0;
  826: - Signal handlers are rewritten to send signal to main thread when a signal
  827: is send from an external process;
  828: - configure.in is modified to avoid a libc bug on Solaris (free() can enter in
  829: deadlock when a huge amount of threads is launched);
  830: - minor bug is fixed in boath START and FOR intrinsic. Only occurs when
  831: arguments types are unsupported;
  832: - PLOT instrinsic is added (usage: LINE and MARK do not draw anything. All
  833: data are buffered. PLOT is used to draw these objects.);
  834: - MARK instrinsic is added;
  835: - new allocator mechanism is written;
  836: - some regression bugs have been fixed, some memory leaks too.
  837: * Wed Jan 28 2009 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.0.prerelease.9 (RPL/2)
  838: - an estimation of future stack elements is added to avoid some costly memory
  839: allocations. This function has a positive impact on execution speed;
  840: - PSHPRFL and PULPRFL have been added;
  841: - RPL/2 can be built on Solaris 64 bits with some minor scripts alterations.
  842: See README for more explanations;
  843: - MTXSTATUS intrinsic is added;
  844: - YIELD intrinsic is added;
  845: - ERRM is fixed. In some cases, ERRM uses some uninitialized pointers;
  846: - SHARED and PRIVATE intrinsics have been added. A shared variable is a
  847: static variable that is shared by multiple threads;
  848: - '->' intrinsic is improved. All object copies have been avoided;
  849: - -n flag is added to catch HUP signal. stderr and stdout are redirected
  850: to a file, stdin is redirected to /dev/null when control process is killed;
  851: - a mutex is added to each object (before this modification,
  852: RPL/2 used a global mutex and performances in multithreaded programs were very
  853: poor.);
  854: - ALARM is now interruptible;
  855: - both PUT and PUTI intrinsics are improved and do not copy list and table
  856: when nombre_occurrences == 1;
  857: - COPY intrinsic is added. Argument (that can be pointed from some objects)
  858: is replaced by a new copy of itself;
  859: - memory leak is fixed in sequenceur(). It only occurs when an execution error
  860: is caught from interactive mode;
  861: - mutexes have been added (CRMTX, CLRMTX, MTXLOCK, MTXUNLOCK);
  862: - new mutex type is added;
  863: - profile statistics have been added. See -P option;
  864: - major bug is fixed in analyse_syntaxique();
  865: - new SQL type is added;
  866: - due to a trouble in libpq in multithreaded context, SQL intrinsic is split
  867: in three new intrinsics : SQLCONNECT, SQLQUERY and SQLDISCONNECT. Please note
  868: that all programs that worked with old SQL intrinsic can now work with
  869: SQLQUERY. With all new programs, you can open a real connection to databases;
  870: - NRPROC is added. This new intrinsic is used to catch error from child
  871: process. Without NRPROC, any errors returned by child process cause
  872: main process to abort;
  873: - SPAWN is added. This new intrinsic is used to launch a new thread (DETACH
  874: starts a new process). There are no mutexes in RPL/2 because all spawned process
  875: use specific context. Nevertheless, shared variables and associated mutexes
  876: should be added;
  877: - -D flag and DAEMONIZE intrinsic have been added;
  878: - REPEAT, THEN, ELSE and ELSEIF intrinsics are rewritten to be more efficient;
  879: - autoconf script is modified to handle mysql and postgresql on non standard
  880: directories;
  881: - -t flag is fixed ('\0' is missing...);
  882: - SWI and SEND pipes have been modified to be more robust on systems where
  883: getpid() can return (pid_t) -1 or (pid_t) -2 value;
  884: - major bug is fixed in REPEAT intrinsic. Only occurs in compiled mode;
  885: - all but jump variables are removed from source. All signal handlers now
  886: use encapsulated variables and signals are caught by thread;
  887: - major bug is discovered in ->LCD. Both LCD-> and ->LCD have been fixed;
  888: - NEWPLANE is added;
  889: - LINE is added;
  890: - DGTIZ is added;
  891: - major bug is fixed in ROW-> intrinsic (comes from new garbage collector);
  892: - lot of multiprocessing related bugs have been fixed; That was a huge work but
  893: it's done. Data integrity is now respected during transmission (POKE, SEND and
  894: SWI);
  895: - ITRACE is added. This intrinsic is only used to debug internal structures and
  896: should not be used in regular programs;
  897: - SWISTATUS is written;
  898: - WFACK is written;
  899: - rplcore files are now able to handle compilation errors;
  900: - rplcore files are now able to handle evaluation and interruption errors;
  901: - SORT can now be used on table;
  902: - tables can now be sent by POKE and SEND instrinsics;
  903: - software interrupts do not inherit IFERR controls;
  904: - LOGGER intrinsic is added;
  905: - All WF* intrinsics but WFSOCK are made interruptible;
  906: - ISWI intrinsic is added. Current interrupt is marked as 'interruptible';
  907: - tables can be used with SAME intrinsic;
  908: - minor bug is fixed in recherche_variable(). Only occurs when an error
  909: is caught;
  910: - external functions can now be used in expressions;
  911: - major bug (deadlock) is fixed in WFPOKE intrinsic;
  912: - some mistakes have been fixed under Solaris;
  913: - major bug is fixed in RETURN intrinsic (only occurs when evaluation and
  914: program modes are mixed);
  915: - major bug (dead lock) is fixed in gestion_processus.c;
  916: - major bug is fixed in WFPROC;
  917: - rplc, rpllink and mkrplso manpages are added;
  918: - rpltags tool and manpage are added;
  919: - WFLOCK is fixed;
  920: - RPL/2 kills now all process on error;
  921: - major bug (segfault) is fixed in REMOVE intrinsic.
  922: * Mon Jul 28 2008 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.0.prerelease.8 (RPL/2)
  923: - configure script is modified to check mysql and postgresql libraries
  924: on all standard locations. Tested and works on FreeBSD, Solaris and Linux
  925: Debian;
  926: - Tables are allowed in eval ( <[ 1 ]> 't' sto 't(1)' eval );
  927: - ->TABLE and TABLE-> intrinsics are added;
  928: - major bug is fixed in recherche_type(). Only occurs when rpl executes
  929: precompiled scripts;
  930: - new type is added: table with <[ ]> delimiters:
  931: RPL/2> { 2 3 2 } crtab
  932: 
  933: 1: <[ <[ <[ { }
  934:             { } ]>
  935:          <[ { }
  936:             { } ]>
  937:          <[ { }
  938:             { } ]> ]>
  939:       <[ <[ { }
  940:             { } ]>
  941:          <[ { }
  942:             { } ]>
  943:          <[ { }
  944:             { } ]> ]> ]>
  945: 
  946: CRTAB new intrinsic creates a regular table. By default, all elements are
  947: nullified lists;
  948: - rplexternals.h is modified and improved;
  949: - GNU File (renamed as rplfile) cannot be built due to a bug in libtoolize and
  950: configure script.
  951: * Mon Jun 23 2008 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.0.prerelease.7 (RPL/2)
  952: - libiconv is added (iconv library exists on some systems but implemantations
  953: differ and RPL/2 can crash);
  954: - --enable-encoding is added to configure script to force system encoding.
  955: Enconding detection does not work on OpenBSD;
  956: - internal file utility is shipped and used to avoid xBSD file mistakes;
  957: - GSL 1.11 and gnuplot 4.2.3 are now used;
  958: - src/Makefile.am is modified to built RPL/2 ons Solaris 10/sparc;
  959: - all but user's messages are written on stderr;
  960: - DUPCNTXT and DROPCNTXT are added to handle more efficiently contexts;
  961: - SCHED is added. Whit SCHED, you can limit CPU ressource by RPL/2 process;
  962: - FUSE, RFUSE and CLRFUSE have been added;
  963: - new bug discovered on NetBSD. sigpending() does not return any signal, thus
  964: DETACH intrinsic enters in a definitive dead lock. I have no idea to write a
  965: workaround for this major bug. Nevertheless, all others capabilities seems to
  966: work fine;
  967: - '->' is modified to return error when program tries to initialiaze two
  968: variables with the same name like
  969: 1 0 -> I I << ... >>;
  970: - CSTOP and RSTOP have been added (catch and release stop signal);
  971: - CONTINUE is added to continue a pending process halted by SUSPEND;
  972: - SUSPEND is modified to be stopped by SIGFSTOP;
  973: - src/Makefile.am is modified to avoid //TRANSLIT flag on systems that don't
  974: support GNU iconv;
  975: - configure.in script is modified to avoid bugs when --with-postgresql and
  976: --with-mysql are specified;
  977: - TRNC is written;
  978: - minor bug is fixed in both IFT and IFTE. Returned expression has to be
  979: evaluated.
  980: * Fri Apr 11 2008 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.0.prerelease.6 (RPL/2)
  981: - SIGPIPE signal handler is modified to avoid abort process when POKE tries
  982: to write data into a pipe without reader;
  983: - major bug is fixed in RETURN intrinsic. When RETURN was called from a detached
  984: process without -p modifier, it can send an ABORT signal instead a KILL one;
  985: - PEEK, POKE and WFPOKE new intrinsics are written;
  986: - major bug due to new garbage collector is fixed in rplexternals.h (double free
  987: corruption);
  988: - CLRCNTXT is added (clear contexts);
  989: - VERIFY intrinsic is written;
  990: - PSHCNTXT and PULCNTXT are added (PSHCNTXT pushes context on an
  991: internal contexts stack, PULCNTXT pulls contexts from this internal stack).
  992: Main usages of these intrinsics are in conjonction with IFERR or with
  993: software interrupts;
  994: - HEAD, TAIL and REVLIST intrinsics are added;
  995: - function pointers have been added to function description;
  996: - new analyse() routine is written. All instrinsics are now in a N-tree;
  997: - software interrupts have been fixed;
  998: - multitasking capabilities have been modified to be usable on NetBSD. All real
  999: time signals have been removed;
 1000: - major bugs are fixed in multitasking (mutex trouble _and_ segmentation fault);
 1001: - minor bug is fixed in STR->. STR-> could return a system error instead an
 1002: execution one;
 1003: - first bug due to new garbage collector is fixed in '+' ({ } { } +) and in
 1004: '-' intrinsics;
 1005: - PostgreSQL support is written.
 1006: * Mon Mar 17 2008 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.0.prerelease.5 (RPL/2)
 1007: - locale can now be specified in SQL intrinsic :
 1008: { "mysql:iso-8859-1" "server" "database" ... };
 1009: - major bug is fixed un analyse_algebrique(). When DISP printed an algebraic
 1010: object, 'DISP()' was pushed in stack;
 1011: - same major bug is fixed in <, >, <=, >= and <>;
 1012: - major bug fixed in formateur() (segfault when a symbol is used without "'");
 1013: - major bug is fixed in DUPN intrinsic;
 1014: - when software interrupt (SWI) is evaluated, SWI pushs process id on stack
 1015: before starting interrupt evaluation;
 1016: - -f parameter is added when iconv is called;
 1017: - as old file program was bugged, a new option is added to configure script.
 1018: When configure is called with --disable-encoding-autodetection, make does not
 1019: try to detect source encoding. Please, do not use if RPL/2 can be built
 1020: without this option !
 1021: - new garbage collector (and more efficient) is written;
 1022: - configure script is modified to be usable on NetBSD 4.0, but as NetBSD does
 1023: not support real time signals, RPL/2 cannot use multitasking functions;
 1024: - error returned by preprocessor are now catched by RPL/2;
 1025: - -p option is added. With this option, all scripts are compiled before
 1026: RPL/2 starts evaluation. HALT cannot be used with -p, but all programs run
 1027: 40% faster;
 1028: - read and write operations in pipe() are rewritten to be sure that such
 1029: operations are atomic;
 1030: - minor bug is fixed in LOGSCALE. With {} LOGSCALE, all scales have to be
 1031: linear;
 1032: - major bug is fixed in gestion_processus.c (some pipes were not closed).
 1033: * Sat Jan 5 2008 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.0.prerelease.4 (RPL/2)
 1034: - major bugs have been fixed in software interrupt management.
 1035: * Fri Jan 4 2008 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.0.prerelease.3 (RPL/2)
 1036: - JDATE and RDATE are written;
 1037: - minor bug (segfault) is fixed in EXSUB. It only occurs when EXSUB is executed
 1038: with wrong arguments;
 1039: - KILL now kills current process, ABORT kills program;
 1040: - software interrupts support is added (SWI, WFSWI, SWILOCK, SWIUNLOCK,
 1041: SWIQUEUE, STOSWI, RCLSWI, CLRSWI);
 1042: - major bug is fixed in SQL intrinsic (argument types);
 1043: - system stack is now written in core file;
 1044: - ALARM is added;
 1045: - nanosleep() now replaces sleep() and usleep() system calls;
 1046: - _GNU_SOURCE is added to rpl.h.
 1047: * Fri Nov 30 2007 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.0.prerelease.2 (RPL/2)
 1048: - License is changed. Now RPL/2 license is CeCILL (GPL compliant);
 1049: - EXGET adn EXSUB are added;
 1050: - minor bug is fixed in recherche_type(). { <<†} has to return an error.
 1051: '<<' and '>>' are both functions _and_ delimiters. Thus { IF } is
 1052: acceptable, but {†>> } isn't;
 1053: - GSL is now 1.10, gnuplot 4.2.2 and units 1.87;
 1054: - OBGET and OBSUB intrinsics are added;
 1055: - src/Makefile.am minor bug is fixed (make clean deleted src/rpl.xpm);
 1056: - WAIT intrinsic is modified to use sleep() and usleep() if delay is
 1057: greater than one second. On some systems, usleep argument must be lower
 1058: than 1E6;
 1059: - numeric and character formats are now tested;
 1060: - -A flag is added. -A is used to give command line parameters to main
 1061: routine. Example:
 1062: rayleigh:[~/rpl-4.0.0.prerelease.2/examples] > ./test3.rpl -A "<< X sin >>"
 1063: +++RPL/2 version 4.0.0.prerelease.2 (vendredi 05.10.2007, 19:03:01 CEST)
 1064: +++Copyright (C) 1989 ŗ 2006, 2007 BERTRAND JoŽl
 1065: << 'X' SIN >>
 1066: rayleigh:[~/rpl-4.0.0.prerelease.2/examples] > cat test3.rpl 
 1067: #!/usr/local/bin/rpl -s
 1068: 
 1069: TEST
 1070: <<
 1071:     disp
 1072: >>
 1073: - minor bug (segfault) is fixed in encart() routine (splash screen). Child
 1074: process ended with segfault due to a mistake in Motif widget cleaning
 1075: process;
 1076: - major bug is fixed in DETACH intrinsic. Child process were locked when
 1077: they were started with a locked mutex that comes from its father;
 1078: - ctrl+C can now kill all child process;
 1079: - WFPROC and WFDATA are rewritten;
 1080: - RETURN is fixed to be usable in detached process;
 1081: - HALT is not exported to child process;
 1082: - FLOW filetype is added;
 1083: - Makefiles are modified to support gcc-4.2 and gfortran-4.2;
 1084: - socket support (Unix, IPv4, IPv6, STREAM, DATAGRAM, ROBUST DATAGRAM,
 1085: SEQUENTIAL DATAGRAM, RAW) is added. Warning: IPv6 sockets have not been tested
 1086: because I don't have any IPv6 compliant server, but they should work.
 1087: * Mon Sep 10 2007 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.0.prerelease.1 (RPL/2)
 1088: - library management is rewritten from scratch. EXTERNAL is removed and
 1089: EXTERNALS is added. Now, all exported symbols are sent to RPL/2 when
 1090: library is loaded;
 1091: - OPEN arguments are changed;
 1092: - EXTERNAL now checks availability of external functions;
 1093: - number of arguments is verified in analyse_algebrique().
 1094: 'SIN(A+X,2)' is now refused because SIN requires only one argument;
 1095: - all but lapack symbols are exported from librpl with librpl, f77 or f90
 1096: prefix;
 1097: - minor bug is fixed in formateur() (AND and OR requires parenthesis);
 1098: - rplexternals.h header file is added; Now, it is very easy to write
 1099: external functions;
 1100: - memory leak is fixed in analyse_algebrique();
 1101: - minor bug (symbole flag) is fixed in sequenceur.c and types.c;
 1102: - temp file was not removed when an error occurs in EDIT or VISIT;
 1103: - 'name' should not returned a function ("FCT" object);
 1104: - -rdynamic is added to src/Makefile.am.
 1105: * Mon Jul 23 2007 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.0.prerelease.0 (RPL/2)
 1106: - Major bug is fixed in interface_tex.c. When there are errors in latex
 1107: file, latex command waits for input on its command line;
 1108: - major bug is fixed in tex.h (multiline strings);
 1109: - examples subdir is added;
 1110: - major bug is fixed in recherche_variable(). When an expression is evaluated
 1111: in a function, all variables set in this function must be visible in
 1112: expression. Thus, << I -> 3 << << I >> eval >> must return 3, not 'I';
 1113: - LAST stack is saved in rplcore;
 1114: - major bug is fixed in ->HMS. It only occurs when argument type is not
 1115: integer or real;
 1116: - major bug (segfault) is fixed when rpl is called with empty file;
 1117: - libtool support is removed. Two new scripts (rplc and rpllink) are provided
 1118: to use librpl.a;
 1119: - automake scripts are rewritten to avoid a misconfiguration of librpl.a
 1120: when -j make option is used;
 1121: - trace output now contains PID;
 1122: - rpl-core is renamed in rpl-code-$PID;
 1123: - rplc and rpllink scripts can now sompile and build C and Fortran
 1124: executables with librpl.a;
 1125: - New classification, only a working simplification() routine is
 1126: required to announce 4.0.0.final;
 1127: - librpl entry point is modified to return results as strings array;
 1128: - -S option is added;
 1129: - due to a major bug in libtool, libtool is removed from autoconf/automake
 1130: scripts;
 1131: - VERSION is modified to return a list.
 1132: * Tue Jul 17 2007 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre8x (RPL/2)
 1133: - major regression bug is fixed in PRINT due to mistake in latex pathes;
 1134: - gnuplot does not have to be built if --disable-embedded-gnuplot is set;
 1135: - new prompt ("RPL/2> ") is used for interactive mode;
 1136: - ARCCOS, ARCSIN, ARCTG, ARGCH, ARGSH, ARGTH, CH, SH, TH and TG intrinsics
 1137: are removed, because all of these intrinsics have two forms. ARCCOS is
 1138: the same than ACOS, TAN=TG, COSH=CH. Please adapt your scripts;
 1139: - gnuplot compilation does not have to be done when disable-gnuplot is set;
 1140: - major bug is fixed in RECV that avoid usage of multitasking.
 1141: * Tue Jul 10 2007 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre8w (RPL/2)
 1142: - False error (system error) was reported by recherche_type();
 1143: - recherche_type() returns syntax error if a list is included in
 1144: an algebraic expression;
 1145: - --enable-debug is modified. Now, return can be defined to print
 1146: on stdout its position in source code (line and function);
 1147: - minor bug is fixed in recherche_type(). Don't forget that space
 1148: are not significant in algebraic expression:
 1149: '12 3+ 12    X' is the same expression than '123+12X';
 1150: - src/Makefile.am is modified to avoid double compilation process;
 1151: - --enable-final-run-path is added to configure.in script;
 1152: - STATIC is modified to declare static variables in expression. Warning: static
 1153: variables used in expressions are deleted when evaluation of this expression
 1154: ends;
 1155: - MEM does not report static variable sizes;
 1156: - minor bug is fixed in HELP intrinsic. When the last instruction was not
 1157: known, HELP function was pushed in operational stack. HELP did not work
 1158: when there were space on input line.
 1159: * Mon May 28 2007 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre8v (RPL/2)
 1160: - DATE is modified: reduced julian days is replaced by fraction part
 1161: of julian days. Old field used by julian days is now integer part of julian
 1162: days;
 1163: - CONVERT intrinsic is rewritten to accept absolute path in popen;
 1164: - automake scripts are modified to delete src/lock file if build process aborts;
 1165: - rplargs.h directly includes rpl.h;
 1166: - absolute pathes are added to all external program files (rplplot, rplpp...);
 1167: - intrinsic functions are case sensitive. External functions are case
 1168: unsensitive. A minor bug is fixed in recherche_type() because all external
 1169: functions were case unsensitive when they were evaluated from RPN expressions;
 1170: - HELP function is rewritten to be more friendly (a la OpenVMS);
 1171: - external wrapper (rplplot) is written to force usage of gnuplot provided
 1172: by RPL/2 if it is built during build process. If this build does not exist,
 1173: it tries to launch regular gnuplot;
 1174: - gnuplot is added to source tree to avoid some trouble between preinstalled
 1175: gnuplot and release used by RPL/2. This addition to source tree is
 1176: required by some incompatibility between gnuplot releases;
 1177: - Lapack is upgraded to 3.1.1 release;
 1178: - GSL is upgraded to 1.9 revision;
 1179: - RPL_TMP_PATH env variable is added to specify the path of tempfiles. If
 1180: it is not set, /tmp is used. If /tmp is not writable, /var/tmp is used. If
 1181: not, ./ but RPL/2 can hang with a fatal error if this last location is
 1182: not writable;
 1183: - major regression is fixed in SYSEVAL intrinsic due to introduction of
 1184: error scrutation.
 1185: * Sat Mar 24 2007 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre8u (RPL/2)
 1186: - SYSEVAL is modified to return an error when execvp() syscall cannot
 1187: execute its arguments;
 1188: - -hard-float sparc option is remove from mkrplso;
 1189: - major bug is fixed in SQL intrinsic that hangs when query did not return
 1190: any values (for exemple INSERT);
 1191: - escape sequences can be used in SYSEVAL argument like "echo \"string\""
 1192: SYSEVAL;
 1193: - graphic and PostScript outputs are now cleared in child process;
 1194: - locales are now used by preprocessor;
 1195: - major bug is fixed in impression_tex(). PRINT did not work due to a bug
 1196: introduced by multitasking code;
 1197: - SORT can now use name as its argument.
 1198: * Sun Jan 21 2007 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre8t (RPL/2)
 1199: - Variable management has been rewritten and some tests have been done. Now,
 1200: it is possible to execute:
 1201: 
 1202: #!/usr/local/bin/rpl -sc
 1203: 
 1204: TEST
 1205: <<
 1206:     1 1000 start VAR_S VAR_S2 next
 1207: >>
 1208: 
 1209: VAR_S
 1210: <<
 1211:     static 3 -> C << C disp 'C' incr if C 10 > then 'C' volatile end >>
 1212: >>
 1213: 
 1214: VAR_S2
 1215: <<
 1216:     static 3 -> C << C disp 'C' decr >>
 1217: >>
 1218: 
 1219: - configure.in script is added in lapack subtree;
 1220: - VARS is modified to display variables status (LOCKED/UNLOCKED and
 1221: STATIC/VOLATILE/PARAMETER/VARIABLE);
 1222: - STATIC and VOLATILE intrinsics are added to specify static variables. A
 1223: static variable can be transformed into volatile with VOLATILE.
 1224: With STATIC, next variables created by '->' are static;
 1225: - PROTECT and UNPROTECT are added to protect variables against write
 1226: or purge actions. New PARAMETER and VARIABLE intrinsics are modified
 1227: versions of PROTECT and UNPROTECT that only deal with global variables
 1228: (see RCL/SAVE);
 1229: - variable management routines have been rewritten. The new ones are
 1230: uncompatible with the old ones. Before these changes, a local variable
 1231: was exported to a child subroutine, but cannot be modified into this
 1232: child subroutine. Now, a local variable is accessible only in its subroutine;
 1233: - SAVE intrinsic is added to manipulate global variables;
 1234: - SUSPEND is written. RPL/2 waits for a SIGCONT signal;
 1235: - SORT, COL->, ->COL, ROW->, ROW-> intrinsics are written;
 1236: - Makefile.am are improved;
 1237: - minor bug is fixed in ->list and ->array. Without any argument, these
 1238: intrinsic only send a SIGSEGV;
 1239: - ncurses is updated to release 5.6;
 1240: - lapack is updated to 3.1.0.
 1241: * Sun Dec 31 2006 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre8s (RPL/2)
 1242: - default CFLAGS/FFLAGS/FCFLAGS are modified due to a bug in gcc-sparc64
 1243: that avoid a complete build;
 1244: - CTRL+Z and CTRL+C signals only perform actions on main process;
 1245: - major bugs are fixed in multitasking capabilities (some mistakes with
 1246: mutexes and several terminated child process cannot be closed by the
 1247: operating system);
 1248: - minor bug fixed in SCLS (mistake between main and auxiliary axes);
 1249: - variables are now written in rpl-core file;
 1250: - NEG is modified to return 0 instead -0 when its argument is real or complex
 1251: number;
 1252: - ROW+ intrinsic can now be used on empty matrix without dimension error:
 1253: [[]] 1 [[ 1 2 ]] row+;
 1254: - major bug is fixed in SUB intrinsic. It only occurs with lists when
 1255: it tries to returns invalid elements like { } 1 2 sub;
 1256: - major bug is fixed in ROW- intrinsic;
 1257: - major bug is fixed in ROW+ intrinsic.
 1258: * Sat Dec 02 2006 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre8r (RPL/2)
 1259: - creation_nom_fichier() is rewritten to force all process to create
 1260: different file names;
 1261: - RANLUX is removed to use GSL library and avoid a bug in gfortran-4.1;
 1262: - readline-5.2 and units-1.86 are now used;
 1263: - SEQUENCE statement is added in fonctions_speciales.f90 to fix a build
 1264: failure.
 1265: * Mon Oct 23 2006 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre8q (RPL/2)
 1266: - wfproc is rewritten to avoid a dead lock;
 1267: - major mistake is fixed in both sommation_vecteur_reel() and
 1268: sommation_vecteur_complexe();
 1269: - multitasking is rewritten from scratch to fix some mistakes with
 1270: multithreading. DETACH, SEND and RECV now use four real time signals to
 1271: perform a better task synchronization;
 1272: - some bugs introduced by locales specific compilations are fixed;
 1273: - major memory corruption is fixed in DEPND;
 1274: - HELP intrinsic is modified to print a classified output.
 1275: * Mon Aug 12 2006 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre8p (RPL/2)
 1276: - major memory leak is fixed in DETACH intrinsic. Files were closed by
 1277: both childs and parent;
 1278: - bug that avoids usage of Motif is fixed in configure.in;
 1279: - makefile's are modified to build RPL/2 with other locale than ISO-8859;
 1280: - db is removed from source tree due to some compilation troubles (db's
 1281: autoconf script is broken);
 1282: - sdb is removed from source tree due to some memory leaks and some troubles
 1283: with its configure script. New SQL routines are written, but only MYSQL
 1284: subsystem is available. Now, SQL can be used without memory leak;
 1285: - major bug is fixed in evaluation() subroutine. Value of error flag
 1286: was not returned in some cases;
 1287: - FACT intrinsic does not accept real arguments anymore due to the new intrinsic
 1288: GAMMA;
 1289: - GAMMA intrinsic is added (complex function) ;
 1290: - autoconf/automake scripts are modified to compile F90 sources;
 1291: - src/distributions.f is replaced by src/distributions.f90. All Numerical
 1292: Recipes references are avoided to use GSL;
 1293: - GSL is upgraded to 1.8 release;
 1294: - -lz is added in src/Makefile.am to fix a mistake in sparc32.
 1295: * Mon Apr 10 2006 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre8o (RPL/2)
 1296: - fft.f is removed. Now FFT intrinsic uses dft subroutine;
 1297: - Sparc64 optimizations are modified. Now gcc-4.0 can be used to build RPL/2 on
 1298: Sparc64. Same modifications are done on sparc32;
 1299: - major bug are fixed in both PLOTTER and HISTOGRAM intrinsics
 1300: (interface with GNUplot).
 1301: - major bugs are fixed in USE/REMOVE intrinsics (system stack corruption);
 1302: - corruption of last stack is fixed in mclrin (only occurs when an error is
 1303: caught);
 1304: - major bug (in a malloc condition) is fixed in derivation().
 1305: * Tue Jan 07 2006 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre8n (RPL/2)
 1306: - configure script and makefiles are modified to be usable with automake
 1307: 1.9.6 (GNU), libtool 1.5.20 (GNU) and autoconf 2.59 (GNU).
 1308: - gestion_fichiers() prototype is modified to be built by gfortran. Now,
 1309: gfortran is the default compiler for FORTRAN code included in RPL/2;
 1310: - libdb is added to perform indexed file access;
 1311: - SQL interfaces are added (SQL intrinsic). Only mysql is supported;
 1312: - minor bug is discovered and fixed in matrix multiplication (precision);
 1313: - rpl.spec.in and debian directory are deleted due to some mistakes in the
 1314: scripts required to build packages.
 1315: * Tue Nov 15 2005 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre8m (RPL/2)
 1316: - major bug is fixed in IFERR/THEN/(ELSE)/END structure. It occured when an
 1317: error is caught before a regular IF/THEN/(ELSE)/END structure in
 1318: IFERR/THEN/(ELSE)/END structure;
 1319: - chmod 755 debian/rules is done by makefile;
 1320: - major bug is fixed in recherche_instruction_suivante():
 1321: +++"123 " str->
 1322: +++Erreur : Argument invalide pour la commande << "123 " str-> >>
 1323: Before this fix, it was impossible to use a command line that ends with spaces.
 1324: * Sat Oct 29 2005 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre8l (RPL/2)
 1325: - SELECT/CASE/DEFAULT/END is modified. Now, it is impossible to write:
 1326: SELECT
 1327:     <case>
 1328:     CASE <test> THEN <expr> END
 1329:     ...
 1330:     DEFAULT
 1331:     DEFAULT <- two DEFAULT's
 1332: END
 1333: 
 1334: or
 1335: 
 1336: SELECT
 1337:     <case>
 1338:     CASE <test> THEN <expr> END
 1339:     ...
 1340:     DEFAULT
 1341:     ...
 1342:     CASE <test> THEN <expr> END <- CASE statement after DEFAULT
 1343: END
 1344: - major bug is fixed (in (unsigned char) getc()). It only occurs when RPL/2 is
 1345: built with gcc-4.0.
 1346: - configure.in is modified to be usable with gcc-4.0.
 1347: * Mon Oct 3 2005 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre8k (RPL/2)
 1348: - segmentation fault occurs in both PROMPT and INPUT when readline returns
 1349: NULL (ctrl^D). This trouble is now fixed;
 1350: - major bug is fixed in DATE intrinsic (julian days and reduced julian days);
 1351: - stderr of rplpp is now caught;
 1352: - SYSEVAL is modified to use stdin, stdout and stderr:
 1353: ESSAI
 1354: <<
 1355:     // Only stdout and stderr
 1356:     "ls" dup disp syseval
 1357:     clmf
 1358:     // Now with stdin ("zer\naze\n")
 1359:     { "cat" "zer" "aze" } dup disp syseval
 1360:     clmf
 1361: >>
 1362: - GSL is upgraded to 1.7.
 1363: * Thu Sep 29 2005 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre8j (RPL/2)
 1364: - SYSEVAL is modified. It now returns stdout and stderr in a list;
 1365: - minor memory leak is fixed in recherche_instruction_suivante() subroutine.
 1366: * Thu Aug 4 2005 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre8i (RPL/2)
 1367: - internal file descriptors are modified to be usable with DUMP intrinsic;
 1368: - VARS intrinsic is modified and now prints value of variables.
 1369: * Thu Jul 21 2005 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre8h (RPL/2)
 1370: - units is upgraded to 1.85 release;
 1371: - -d flag is added in command line. Don't use this flag if you don't know
 1372: what you do! It is only used to debug internal memory allocations;
 1373: - internal pointers (ADR objects) are printed as 64 bits pointers to be usable
 1374: on 64 bits wide architectures.
 1375: * Sat apr 16 2005 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre8g (RPL/2)
 1376: - DUMP is rewritten to be portable. It works, but without shared libraries,
 1377: printer file, graphic files and last error. Support for this kind of objects
 1378: shall be available as soon as possible. Warning: DUMP cannot be used in
 1379: multiprocessing;
 1380: - configure.in script is modified to return an error when g77 is not found;
 1381: - a new internal type is used to handle shared libraries;
 1382: - a major bug is discovered and fixed in recherche_type(). It only occurs
 1383: in interactive mode ([[ 1 ]] returns a syntax error);
 1384: - a major bug is found in simplification_arbre(). Subroutine is disabled.
 1385: * Thu mar 17 2005 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre8f (RPL/2)
 1386: - option -r is added to restart a process from a dump file;
 1387: - DUMP intrinsic is added. It performs synchronous checkpointing;
 1388: - GSL is upgraded to release 1.6.
 1389: * Wed dec 22 2004 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre8e (RPL/2)
 1390: - Result types of PERM and COMB instrinsic are fixed;
 1391: - RPL/2 now uses a new preprocessor due to a new 'feature' in gcc/cpp;
 1392: - RPL/2 can now use all processors on multiprocessor workstations with
 1393: DETACH, SEND, RECV and WFPROC new intrinsics. The first test program was:
 1394: 
 1395: #!/usr/local/bin/rpl -cs
 1396: 
 1397: MULTIPROCESSUS
 1398: <<
 1399:     'FONCTION' detach
 1400:     do "B" disp until false end
 1401: >>
 1402: 
 1403: FONCTION
 1404: <<
 1405:     do "A" disp until false end
 1406: >>
 1407: 
 1408: * Sun dec 12 2004 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre8d (RPL/2)
 1409: - major bug is discovered and fixed in analyse_notation_algebrique :
 1410: +++'A-B-C' returned
 1411: 1: 'A-(B-C)' instead of 1: 'A-B-C'. It is now fixed;
 1412: - recherche_type() routine is improved to cast in name 1E5E-6 or 1.23.4.5.
 1413: * Fri dec 7 2004 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre8c (RPL/2)
 1414: - major bug is fixed in formateur_fichier(). Now, it is possible to use
 1415: lists in a file record. Note that only sequential and formatted files
 1416: are supported;
 1417: - major bug is fixed in BACKSPACE intrinsic. It only occurs on large
 1418: records.
 1419: * Fri nov 26 2004 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre8b (RPL/2)
 1420: - minor bug is fixed in IP intrinsic: when argument was real without
 1421: fraction part, IP returned a real, not an integer;
 1422: - minor bug is fixed in recherche_type(): it is now possible
 1423: to enter +++<NB3 + return. RPL/2 returns a syntax error, not a acces
 1424: violation;
 1425: - MCLRIN (MacLaurin series) intrinsic is added;
 1426: - TAYLR (Taylor series) instrinsic is added;
 1427: - very minor bug is fixed in evaluation(). Sometimes, when evaluation()
 1428: is stopped by ^C, EXIT intrinsic did not work due to a mistake in
 1429: the internal system stack;
 1430: - minor bug is fixed in encart.c. System error messages returned by
 1431: this subroutine were only available in french;
 1432: - internal RPL/2 system stack corruption is fixed. This bug only affects
 1433: interactive and debug modes when evaluation routine returns an error;
 1434: - symbolic derivation subroutine is now able to derivate functions;
 1435: - minor bug is fixed in instruction_multiplication: now 'X' 1. * returns
 1436: 'X' and not 'X*1'.
 1437: * Thu nov 18 2004 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre8a (RPL/2)
 1438: - ctags in src/Makefile.am is fixed;
 1439: - first derivation subroutines are written;
 1440: - major bug is fixed in analyse_algebrique() :
 1441: before this patch, '3-5+4' was understand as '3-(5+4)' !
 1442: - instruction_division() is improved and returns 0 when it evaluates
 1443: '0/X';
 1444: - instruction_moins() is improved and returns 'NEG(X)' when it evaluates
 1445: '0-X'.
 1446: * Fri nov 5 2004 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre8 (RPL/2)
 1447: - interface_gnuplot is modified and do not use any deprecated gnuplot
 1448: commands. Warning, you must use gnuplot 4.0;
 1449: - graphic output is improved. Now, it is possible to use two separated
 1450: scales on the same 2D graph (with "main" and "auxiliary" option of SCALE
 1451: intrinsic). For example:
 1452: 
 1453: #!/usr/local/bin/rpl -c
 1454: 
 1455: TEST
 1456: <<
 1457:     'X' indep
 1458:     { X Y } autoscale
 1459:     'SIN(X)' steq draw
 1460:     { "auxiliary" } axes
 1461:     { X Y } autoscale
 1462:     'COS(X)+2' steq draw
 1463:     { { "ticsonly" "automatic" } { "ticsonly" "automatic" } } axes
 1464:     drax persist
 1465: >>
 1466: 
 1467: - a major bug is fixed in encart.c;
 1468: - ncurses is patched.
 1469: * Mon nov 1 2004 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre7o (RPL/2)
 1470: - configure script is updated;
 1471: - splash screen is added;
 1472: - minor bug is fixed in SYSEVAL (only occurs with SIGINT signal).
 1473: * Sun oct 24 2004 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre7n (RPL/2)
 1474: - stack overflows are caught.
 1475: * Fri oct 8 2004 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre7m (RPL/2)
 1476: - minor bug is fixed in both << and >> intrinsics. It only occurs when
 1477: "<<" HELP or ">>" help is called;
 1478: - DFT and IDFT are added;
 1479: - minor bug is fixed in FFT (explicit length has to be positive);
 1480: - MOD can be used with vectors and matrices arguments;
 1481: - major bugs are fixed in FFT and IFFT (trouble in the computation of the
 1482: default length of FFT). Only occur with matrices.
 1483: * Sat aug 14 2004 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre7l (RPL/2)
 1484: - readline is upgraded to 5.0;
 1485: - gsl is upgraded to 1.5;
 1486: - corrections in HELP functions.
 1487: * Fri aug 7 2004 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre7k (RPL/2)
 1488: - HELP is added;
 1489: - statistic matrix SIGMA is renamed as SDAT;
 1490: - rpl.h is modified to workaround a bug in Cygwin environment
 1491: (SA_NOMASK is not defined in include files);
 1492: - overflows are tested in HMS+ and HMS-;
 1493: - CEIL, FLOOR and IP are modified to return a correct result with huge
 1494: arguments that cannot be stored as integers;
 1495: - fix a minor bug in ->LIST. The LAST stack now contains all arguments
 1496: of this intrinsic;
 1497: - flag 32 is used with DISP;
 1498: - major bug is fixed in ->Q intrinsic (type of argument and memory leak).
 1499: * Fri may 21 2004 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre7j (RPL/2)
 1500: - major bug is fixed in analyse(). CHR intrinsic cannot be called because
 1501: I have erased a 'break' in a case statement;
 1502: - major bug is fixed in AXES intrinsic. It only occurs when AXES is used
 1503: with "main" or "auxiliary" option;
 1504: - major bug is fixed in recherche_types(). With this patch, 'sin(X)' is
 1505: now well analysed as 'SIN(X)'.
 1506: * Thu apr 22 2004 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre7i (RPL/2)
 1507: - major bug is discovered and fixed in formateur(). It only occurs when
 1508: an algebraic expression is displayed with '='. In some cases, parenthesis
 1509: are missing. Same fix in formateur_fichier();
 1510: - a minor bug is fixed in evaluation.c that does not return any error when
 1511: it tries to execute 'a=z' e = ;
 1512: - new code is written in each intrinsic functions to return their required
 1513: arguments.
 1514: * Sun apr 14 2004 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre7h (RPL/2)
 1515: - a minor bug is fixed in recherche_type: 1.E90 is now a real;
 1516: - minor bug is fixed in formateur_reel(). It only occurs in STD mode:
 1517: 1E90 was printed as 1.00000000000000E90;
 1518: - HELP is added;
 1519: - formateur() is fixed to properly print matrices and lists;
 1520: - a lot of warnings due to deprecated syntax are fixed;
 1521: - DFT is modified but not usable;
 1522: - cosmetic bug is fixed in formateur_tex.c;
 1523: - minor bug is fixed in FFT intrinsic (segfault when FFT is called without
 1524: any argument).
 1525: * Sun Jan 25 2004 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre7g (RPL/2)
 1526: - included ncurses is updated to 5.4;
 1527: - included units is updated to 1.83c;
 1528: - major bug is fixed in recherche_type() function. With this bug, RPL/2
 1529: prints 'A/INV(Z+E)+R' when you enter A Z E + inv R + /;
 1530: - DFT intrinsic is added. It returns the discrete Fourier transform of an
 1531: array. When the length of each line is 2**n, the result is the same as
 1532: the result of FFT;
 1533: - minor bug is discovered and fixed in PUT and PUTI intrinsics when these
 1534: instructions verify arguments types. It does not affect the result when
 1535: all arguments are correct.
 1536: * Sun Oct 19 2003 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre7f (RPL/2)
 1537: - major bug is fixed in evaluation of both EXIT and CYCLE intrinsics. Now,
 1538: EXIT can be used (as ABORT and KILL) to quit interactive mode of RPL/2;
 1539: - units is updated to 1.83a release;
 1540: - formateur_fichier.c is modified to handle unformatted files. This task
 1541: is not completed.
 1542: * Mon Aug 25 2003 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre7e (RPL/2)
 1543: - CLUSR is written. It purges all global variables;
 1544: - BESSEL intrinsic is fixed to allow the use of expressions as arguments;
 1545: - a major bug was introduced with rpl-4.00pre7d in formateur.c. It appears
 1546: when an algebraic expression is displayed or printed but does not affect
 1547: computations. It is now fixed;
 1548: - gsl is upgraded to 1.4.
 1549: * Mon Aug 18 2003 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre7d (RPL/2)
 1550: - algebraic expressions are now more readable when they are displayed
 1551: (less parenthesis);
 1552: - rplpp is modified to workaround a mistake in 'which' function (seems to appear
 1553: on Debian distribution, but since cpp is in the default path, RPL/2 works
 1554: fine...);
 1555: - NOT is not correctly formatted in formateur.c:
 1556: Z NOT -> 'NOT Z' but 'A+Z' NOT -> 'NOT A+Z' and 'NOT Z+A' -> 'NOTZ+A'
 1557: with a NOTZ function !
 1558: * Sun Aug 10 2003 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre7c (RPL/2)
 1559: - CYCLE is fixed. Now, it is possible to use CYCLE in an expression even
 1560: if the main loop is in a program;
 1561: - RPL/2 is tested with efence and valgrind;
 1562: - configure.in script is modified;
 1563: - units.c is modified to be built by gcc-3.3. I only have removed a #if 0/#endif
 1564: structure. I don't know why this code was compiled by gcc-3.3... Maybe
 1565: another gcc bug...
 1566: * Fri Jul 25 2003 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre7b (RPL/2)
 1567: - EXIT is fixed. Now, it is possible to use EXIT in an expression when the
 1568: main loop is in a program;
 1569: - RPL/2 can take its arguments (and command) on the standard input. Try
 1570: echo "1 2 3 + *" | rpl -i | grep "^1:" | cut -d ':' -f2
 1571: - a minor bug in vim syntax file is fixed (CYCLE and EXIT intrinsics);
 1572: - a minor bug is discovered in analyse_algebrique(). Now, expression
 1573: such as 'A+Z AND 2' or '(A+Z) AND 2' are correctly parsed.
 1574: * Mon Jun 16 2003 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre7a (RPL/2)
 1575: - Major bug is fixed in evaluation subroutine. This one only occurs
 1576: when an error in a user definition called by an expression is caught
 1577: by an IFERR structure;
 1578: - EXIT intrinsic can now be used in DO/UNTIL/END or WHILE/REPEAT/END loops;
 1579: - sequenceur() is now uninterruptible with STOP signal in recherche_type()
 1580: subroutine;
 1581: - major bug is fixed in types.c (# xxxxxb) and recherche_instruction_suivante();
 1582: - GSL exception (underflow) is now caught;
 1583: - tools/Makefile.am is fixed;
 1584: - Debian buildpackage script is fixed.
 1585: * Tue Jun 10 2003 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre7 (RPL/2)
 1586: All memory leaks issued from the pre6 beta releases seem to be fixed.
 1587: Build process is improved and vim syntax file and manual pages are updated.
 1588: * Mon Jun 9 2003 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre6l (RPL/2)
 1589: - RCI and RCIJ intrinsic are added;
 1590: - BESSEL intrinsic is added. Syntax:
 1591: 3: type ("J", "K", "I", "Y", "j", "k", "i", "y")
 1592: 2: order (integer or real)
 1593: 1: x;
 1594: - ->Q intrinsic is added;
 1595: - major bug is fixed in C->R intrinsic;
 1596: - ROW+ and ROW- are added and tested;
 1597: - COL+ and COL- are added and tested. Syntax:
 1598: 3: matrix
 1599: 2: integer (number of column to be inserted)
 1600: 1: column matrix to be inserted;
 1601: - major bug was discovered in interface_gnuplot(). It only occurs when
 1602: the subroutine reduces the graphical depth. It is now fixed;
 1603: - Some mistakes are been fixed in vim syntax file;
 1604: - SX2, SY2 and SXY are added;
 1605: - SX and SY statistical intrinsics are added;
 1606: - DEBIAN control file is fixed;
 1607: - PAPER intrinsic is added. Supported paper formats are now : a4, a5, b5,
 1608: letter, legal, executive;
 1609: - PPAR is modified to include current graphic type.
 1610: * Sun Jun 1 2003 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre6k (RPL/2)
 1611: - SLICESCALE intrinsic is added. Its syntax is
 1612: { "automatic" nb_of_levels }
 1613: { "discrete" l1 l2 l3 ... }
 1614: { "incremental" start incr }
 1615: { "incremental" start incr end }
 1616: { "automatic" } (default);
 1617: - a minor bug (in last stack) is fixed in AXES intrinsic
 1618: - flag 52 is used to automatically update graphics;
 1619: - man pages are updated;
 1620: - evaluation() is modified to perform evaluation of expressions that contain
 1621: '=';
 1622: - a minor bug is fixed in AXES intrinsic;
 1623: - a minor bug is fixed in DRAW intrinsic (2D and 3D graphics were able to
 1624: appear on the same figure). The same mistake is fixed in DRWS intrinsic;
 1625: - LAST is disabled in evaluation subroutine (EVAL and ->NUM intrinsics).
 1626: * Sun May 18 2003 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre6j (RPL/2)
 1627: - SLICE intrinsic is added. It is used to draw 3D graphics as contour lines;
 1628: - PLOTTER is added to draw statistical clouds with lines;
 1629: - C and H source files now include vim parameters;
 1630: - vim syntax file is modified to include new intrinsics;
 1631: - static archive is modified to include all required libraries needed by
 1632: RPL/2.
 1633: * Sun May 4 2003 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre6i (RPL/2)
 1634: - '=' is added and tested;
 1635: - XCOL and YCOL are added;
 1636: - a minor bug in analyse_syntaxique() is fixed;
 1637: - THEN is modified to return an error when ELSE appears in a CASE/THEN/END
 1638: structure. ELSE is modified to return an error when ELSE appears in
 1639: an ELSE/END structure;
 1640: - a major bug is fixed in CYCLE;
 1641: - EXIT is written. When EXIT appears in a defined loop (FOR or START), the
 1642: sequencer continues after the end of this loop;
 1643: - SCLS is added;
 1644: - DRWS now uses COLS to draw 2D graphics;
 1645: - PPAR and SPAR are written. SPAR returns a list that contains the
 1646: size of the statistical matrix (or "UNAVALAIBLE" if there is any
 1647: statistical variable, or "DISABLED" if its type is not one of the type of
 1648: a statistical matrix.) and XCOL and YCOL parameters. Warning: [[]] SIZE
 1649: returns { 1 0 } and it is not a bug, because a null matrix contains _one_
 1650: null line ! Thus, [[]] STOS SPAR returns { { 1 0 } 1 2 };
 1651: - EXTERNAL intrinsic is added. Warning: by default, extern functions are
 1652: disabled. Arguments of EXTERNAL are case sensitive because the external
 1653: interface is written in C. { ext_sinus } EXTERNAL does not replace the list
 1654: of known external functions but add the new list to the last. { "all" }
 1655: EXTERNAL allows all external functions and { "none" } EXTERNAL removes all
 1656: external names of the known functions;
 1657: - mkrplso.in is modified.
 1658: * Sun Apr 20 2003 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre6h (RPL/2)
 1659: - vim syntax file is upgraded;
 1660: - a minor mistake is fixed in recherche_instruction_suivante();
 1661: - some minor memory leaks are fixed in recherche_type() function. They only
 1662: occurs when a syntax error is detected;
 1663: - #error and #warning preprocessor macros are added;
 1664: - INCR and DECR are written (with integer or variable argument);
 1665: - CSWP and RSWP are added and tested;
 1666: - a minor bug is fixed in analyse.c;
 1667: - DEBIAN/control is added to build debian package;
 1668: - SCALE is fixed and improved ("automatic" keyword);
 1669: - PUTC and PUTR new intrinsics are added.
 1670: * Sun Apr 13 2003 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre6g (RPL/2)
 1671: - a very minor bug is fixed in VISIT intrinsic. It only occurs when
 1672: VISIT does not find a name in level 1;
 1673: - configure.in script is modified to add a new test (--enable-debug
 1674: flag). Configured with this fleg, RPL/2 will be built with electric-fences;
 1675: - GETR (get row[s]) and GETC (get column[s]) are added. These new instructions
 1676: extract a part of a matrix. Syntax: [[ 1 2 3 ][ 2 3 4 ]] { 1 } GETR or
 1677: 'MATRIX' { 2 2 3 } GETR;
 1678: - LOGSCALE intrinsic is improved and now, it can be used as
 1679: { "main" "auxiliary" X Y } LOGSCALE;
 1680: - SCALE intrinsic is used to fix the limits of a graphic. Its syntax is the
 1681: same than AXES:
 1682: { { 60 "ticsonly" 2 } { "automatic" "ticsonly" 10 } } axes
 1683: { "auxiliary" { 60 "ticsonly" "default" } { "automatic" } } axes
 1684: { { -10 10 } "automatic" } SCALE.
 1685: Warning, it is not possible to ask a logarithmic scale with this intrinsic
 1686: because it changes only the dimension of the screen. To have a logarithmic
 1687: scale, you must use LOGSCALE intrinsic:
 1688: { X } LOGSCALE gives a semi-log screen, { "auxiliary" X Y } gives a log-log
 1689: screen on second scale;
 1690: - { X X } autoscale and { Y Y } logscale are now invalid;
 1691: - *D is added (depth multiplication, for 3D graphics);
 1692: - a new intrinsic (*S) is added. It changes the scale of a graphic (X, Y
 1693: and Z axes). The result of *S is the same than DUP DUP *H *W *D;
 1694: - a major bug is fixed in GETI instrinsic when it is used with a name
 1695: that contains a matrix or a vector (bad upper bounds conditions in
 1696: incrementation);
 1697: - DISP intrinsic now uses the 33-th flag. When it is not set
 1698: (default), a final carriage return is sent to the terminal;
 1699: - AXES intrinsic only takes a list that can contains the keywork
 1700: "main" or "auxiliary". Before this modification, this keyword was in
 1701: the first stack level;
 1702: - vim syntax file is upgraded;
 1703: - in appel_gnuplot(), stdin is closed when gnuplot is called with -raise
 1704: option;
 1705: - LAST is now disabled in the main loop of INT intrinsic;
 1706: - expm1 and lnp1 are rewritten to use expm1 and log1p from math.h.
 1707: * Sun Apr 6 2003 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre6f (RPL/2)
 1708: - a major bug is fixed in evaluation() subroutine. It occurs with DRAW
 1709: intrinsic when the equation cannot be evaluated (for example 'SIN(X)/X'
 1710: in 0);
 1711: - LAST is disabled in the main loop of DRAW intrinsic;
 1712: - a major bug is fixed in DRAW intrinsic. When an error occurs in the
 1713: evaluation of an equation, the system stack is returned corrupted to the
 1714: sequencer;
 1715: - the same minor bug is fixed in FOR and START. It only occurs when the limits
 1716: of a loop are not integer or real.
 1717: * Sun Mar 31 2003 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre6e (RPL/2)
 1718: - the compilation stage aborts with an error message when two definitions
 1719: have the same name. To improve the compilation() subroutine, I have to
 1720: add some tests in gestion_variables.c;
 1721: - recherche_type() subroutine ad some other connex subroutines are improved.
 1722: Now, some syntax errors about object are caught and do not perform sequencer
 1723: hangup;
 1724: - readline is upgraded (minor compilation bug with recent gcc);
 1725: - Makefile.am's and configure.in scripts are improved.
 1726: * Fri Mar 14 2003 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre6d (RPL/2)
 1727: - DRWS intrinsic is written. Two datastyles are associated: SCATTER (2D
 1728: and 3D) and HISTOGRAM (only 2D, but 3 columns are accepted, the third shown
 1729: the boxwidth, 1 by default);
 1730: - recherche_type() is rewritten to be faster;
 1731: - gsl is upgraded (release 1.3);
 1732: - ncurses is upgraded and patched (release 5.3);
 1733: - recherche_instruction_suivante() is fixed (string research with included
 1734: '"') and rewritten to be faster;
 1735: - appel_gnuplot() is fixed. When no graphic was available, it returned a
 1736: segfault.
 1737: * Sun Mar 9 2003 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre6c (RPL/2)
 1738: - RPL/2 is compiled by gcc-3.2.2 and seems to work;
 1739: - the same minor bug is fixed in REDRAW and DRAX functions;
 1740: - a minor fix is written in DRAW function (2D and 3D);
 1741: - AXES intrinsic is improved. Now { { pi "ticsonly" 4 } "automatic" } DRAX
 1742: is accepted;
 1743: - a minor bug is fixed in VISIT intrinsic.
 1744: * Sun Jan 26 2003 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre6b (RPL/2)
 1745: - a minor bug is fixed in evaluation subroutine;
 1746: - vim syntax file is improved;
 1747: - DRAW (wireframe section) is fixed. When an error occurs in the evaluation
 1748: of a 3D-graphic (for example 'SIN(R)/R' with 'R=SQRT(X**2+Y**2)' in X=0 and
 1749: Y=0), no graph was procuced (it results from a bug in gnuplot, and this fix
 1750: is a quick and dirty workaround...);
 1751: - RETURN intrinsic is modified to fix a trouble in interactive mode;
 1752: - rplconvert is improved.
 1753: * Sun Dec 22 2002 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre6a (RPL/2)
 1754: - a memory leak is fixed in formateur.c that only occurs when RPL/2 try
 1755: to print a list that contains a name;
 1756: - a major bug is fixed in -> intrinsic that only occurs in evaluation case with
 1757: a algebraic expression (<< 1 -> X 'X+1' >> eval);
 1758: - vim syntax file is improved;
 1759: - RPL/2 can now be built by gcc 3.2.1;
 1760: - "**" can be used in algebraic expression;
 1761: - DRAW can now plot wireframe (3D) graphics.
 1762: * Sun Dec 8 2002 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre6 (RPL/2)
 1763: - ncurses is patched to be compiled by gcc 3.2;
 1764: - purification_chaine is rewritten to fix a major bug (when 'chaine' is empty);
 1765: - a major bug is fixed in recherche_instruction_suivante();
 1766: - minor bug is fixed in rpl-core file. The error message is now correctly
 1767: written;
 1768: - minor bug is fixed in analyse_notation_algebrique.c and types.c.
 1769: Now, an expression such as 'A+' returns an error when it is analyzed;
 1770: - VISIT intrinsic is added;
 1771: - a major memory leak is fixed in evaluation.c. This bug rarely occurs in
 1772: normal mode.
 1773: * Sun Aug 25 2002 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre5e (RPL/2)
 1774: - an EDIT intrinsic is added;
 1775: - PRMD intrinsic returns french or english messages;
 1776: - rpl-core now call LAST intrinsic if the last stack is avalaible. It
 1777: contains the error message too;
 1778: - new syntax, ftplugin and indent files are written for vim text editor;
 1779: - major bug is found and fixed in RCL intrinsic;
 1780: - major bug is found and fixed in OR intrinsic.
 1781: * Mon Jul 29 2002 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre5d (RPL/2)
 1782: - ncurses is updated;
 1783: - minor bug is fixed on PURGE instruction (an error no caught was
 1784: returned in interactive mode).
 1785: * Mon Jul 21 2002 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre5c (RPL/2)
 1786: - ASL (arithm. shift left) is added.
 1787: * Thu Jul 11 2002 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre5b (RPL/2)
 1788: - ncurses is patched;
 1789: - gsl is added to perform arithmetic operations;
 1790: - units is patched;
 1791: - some very minor bugs have been fixed.
 1792: * Wed May 15 2002 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre5a (RPL/2)
 1793: - ncurses is patched;
 1794: - RPL/2 can now be built by gcc 3.1;
 1795: - RDZ is fixed (minor bug).
 1796: * Sun Apr 21 2002 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre5 (RPL/2)
 1797: - RPL/2 can now be called from other languages (librpl libraries).
 1798: * Sun Mar 24 2002 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre4h (RPL/2)
 1799: - ERRN and ERRM can now be used with errors returned by external functions;
 1800: - readline and ncurses have been updated;
 1801: - no more bugs have been reported since the rpl-4.00pre4g release.
 1802: * Wed Feb 20 2002 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre4g (RPL/2)
 1803: - ERRN and ERRM intrinsic functions are written. They return the last
 1804: error number or message even if errors are caught by an IFERR structure;
 1805: - a minor bug is fixed in EPSILON intrinsic. Now, 'EPSILON(0)' returns
 1806: a non null value;
 1807: - Ncurses is updated.
 1808: * Mon Feb 18 2002 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre4f (RPL/2)
 1809: Arithmetic intrinsic instructions (- +, -, *, / and **) are improved :
 1810: 'X' 0 + and 0 'X' + return 'X';
 1811: 'X' 0 - returns 'X';
 1812: 'X' 1 * and 1 'X' * return 'X';
 1813: 'X' 0 * and 0 'X' * returns 0; 
 1814: 'X' 1 / returns 'X';
 1815: 'X' 1 ** returns 'X';
 1816: 'NEG(X)' NEG returns 'X';
 1817: - autoconf/automake scripts are improved: now, the size of the different types
 1818: found by configure are used in rpltypes.h (rplconfig.h is written by configure);
 1819: - rdynamic flag is added in src/Makefile.am. This flag is used in the first
 1820: makefile, but forgotten in the new process;
 1821: - Flag 31 is tested before saving any arguments in bibliotheques_externes.c;
 1822: - POS can now be used on lists;
 1823: - ELSILON is written. This function returns the smallest real e(x) such as
 1824: e+abs(x) != abs(x).
 1825: * Mon Feb 11 2002 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre4e (RPL/2)
 1826: - now, INT intrinsic function can be interrupted;
 1827: - precision of sommation_vecteur_xxx() subroutines is improved;
 1828: - new vim syntax file written for vim 6.0.
 1829: * Mon Feb 04 2002 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre4d (RPL/2)
 1830: - explicit error messages are now printed when the RPL/2 is used in
 1831: interactive mode;
 1832: - major bug is fixed in OPEN intrinsic: with 'REPLACE' status, file lock was
 1833: tested after the file is opened, thus, when the file was locked, it was
 1834: deleted too!;
 1835: - configure script is improved (and it seems to be good ;-) );
 1836: - An --disable-experimental flag is added to the configure script. Thus, even
 1837: if you compile a beta release, you can compile a stable RPL/2;
 1838: - new syntax and ftplugin written for vim 6.0.
 1839: * Wed Jan 30 2002 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre4c (RPL/2)
 1840: - configure script is improved.
 1841: * Sun Jan 27 2002 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre4b (RPL/2)
 1842: - ncurses now replaces termcap;
 1843: - CŰme DESPLATS has written a configure script.
 1844: * Fri Jan 18 2002 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre4a (RPL/2)
 1845: - KIND is added and returns the type of the numerical argument ;
 1846: - history file is added.
 1847: * Tue Jan 15 2002 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre4 (RPL/2)
 1848: - Stable release. Unformatted files are disabled in this release.
 1849: * Mon Jan 14 2002 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre3h (RPL/2)
 1850: - SIGTSTP (CTRL+Z) is added. In a script, a SIGTSTP signal signifies
 1851: that the RPL/2 seqencer must stop and must give a prompt. This
 1852: signal is an asynchonous "HALT" command;
 1853: - SIGINT (CTRL+C) variables stack corruption is fixed;
 1854: - IFERR seems to be fixed (in equation evaluation routine);
 1855: - Memory leak is fixed (ADR object type);
 1856: - DATE returns both date and hours;
 1857: - TIME now returns user and system CPU times;
 1858: - MEM is added.
 1859: * Thu Jan 10 2002 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre3g (RPL/2)
 1860: - Makefile is improved to support sparc v7 (sun4c), sparc v8 (sun4m) and
 1861: sparc v9 (sun4u). Now, RPL/2 can be built on i386 (i486 is known as i386),
 1862: i586, i686, K6, K7, alpha ev4, alpha ev5, alpha ev56, alpha ev6, sparc v7,
 1863: sparc v8 and sparc v9. Compilation of RPL/2 on my Sun Sparc 2 (sun4c,
 1864: CPU 4/75, 64 MB, 40 MHz with FPU) is a very great mission :
 1865: 
 1866: Newton:[~/rpl/rpl] > time make install
 1867: ...
 1868: real    338m39.623s
 1869: user    324m32.290s
 1870: sys     10m47.380s
 1871: Newton:[~/rpl/rpl] >
 1872: 
 1873: I don't know if you will compile this language on old worstations, but
 1874: it is usable ;-) ;
 1875: - SYSEVAL is improved. An external program can be called without any shell.
 1876: Thus, even if the sticky bit is set, RPL/2 can not give a shell root when
 1877: a SYSEVAL command crashes;
 1878: - minor bug is fixed in recherche_type() (# xxxxb parsing);
 1879: - presence of bootstrap entry point is verified before launching the
 1880: sequencer;
 1881: - minor bug is fixed in formateur_tex() (underscore in mathematical
 1882: expression);
 1883: - Lapack is updated.
 1884: * Thu Jan 3 2002 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre3f (RPL/2)
 1885: - IFERR is now known in an expression, but not usable.
 1886: * Mon Dec 31 2001 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre3e (RPL/2)
 1887: - several bugs are fixed.
 1888: * Mon Dec 17 2001 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre3d (RPL/2)
 1889: - major bugfix in file locking.
 1890: * Fri Dec 14 2001 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre3c (RPL/2)
 1891: - minor fixes is system() call.
 1892: * Fri Nov 30 2001 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre3b (RPL/2)
 1893: - automatic limitation of the graphical depth due to a limitation (bug ?)
 1894: of gnuplot.
 1895: * Mon Nov 19 2001 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre3a (RPL/2)
 1896: - new file temp management.
 1897: * Sun Nov 18 2001 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre3 (RPL/2)
 1898: - memory leak is fixed in STO instruction;
 1899: - minor bug in file management is fixed;
 1900: - BACKSPACE is added;
 1901: - VARS is added;
 1902: - file locks are improved.
 1903: * Wed Nov 14 2001 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre2l (RPL/2)
 1904: - major bug is fixed (on sparc architecture) and RPL/2 can now run
 1905: on sparc stations;
 1906: - INDEP and DEPND are improved;
 1907: - AXES is added;
 1908: - WRITE, APPEND and REWIND are added.
 1909: * Sun Nov 11 2001 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre2k (RPL/2)
 1910: - write is improved ;
 1911: - major bug is found and fixed in copie_objet() with struct_fichier;
 1912: - minor bug is fixed in OPEN function;
 1913: - minor bug is fixed in analyse_syntaxique() subroutine. All commands
 1914: are analysed before starting their executions.
 1915: * Thu Nov 8 2001 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre2j (RPL/2)
 1916: - minor bug is fixed in appel_gnuplot();
 1917: - RPL/2 can work without LANG variable.
 1918: * Wed Oct 31 2001 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre2i (RPL/2)
 1919: - WAIT function is improved (removing the polling function);
 1920: - LAST stack is not active (default) when rpl is called without the option -i.
 1921: In all other cases, LAST stack is active;
 1922: - Labels can be added on a gnuplot output (function LABEL);
 1923: - LCD-> and ->LCD are added.
 1924: * Sun Oct 21 2001 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre2h (RPL/2)
 1925: - minor bug is fixed in TeX output (pi);
 1926: - new english manual is added.
 1927: * Wed Oct 16 2001 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre2g (RPL/2)
 1928: - LOCK, WFLOCK and UNLOCK are added. A file is locked when it is opened;
 1929: - VERSION function is added. It returns the version number of the interpreter;
 1930: - minor bug is fixed in evaluation subroutine;
 1931: - english error messages are been fixed.
 1932: * Tue Oct 09 2001 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre2f (RPL/2)
 1933: - interrupt subroutine is added;
 1934: - formatted files support is continued.
 1935: * Sun Sep 30 2001 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre2e (RPL/2)
 1936: - formateur_fichier.c is added to perform formatted files write.
 1937: * Thu Sep 27 2001 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre2d (RPL/2)
 1938: - minors bugfixes in FIX format in formateur_reel() subroutine;
 1939: - new manual page in english;
 1940: - FORMAT intrinsic is added and can read any format for "formatted" file.
 1941: * Sun Sep 23 2001 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre2c (RPL/2)
 1942: - OPEN, CLOSE, SYNC, INQUIRE, CREATE and DELETE are tested;
 1943: - a man page in the first manual section is written.
 1944: * Thu Sep 20 2001 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre2b (RPL/2)
 1945: - major bugfixes in recherche_type() subroutine: sometimes in interactive mode,
 1946: this routine was be able to forget the last element of a list, a vector or
 1947: a matrix.
 1948: * Mon Sep 17 2001 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre2a (RPL/2)
 1949: - OPEN, CLOSE and DELETE are known by the language but not very usable;
 1950: - minor bugfixes in evaluation routine.
 1951: * Sun Sep 16 2001 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre2 (RPL/2)
 1952: - major bugfixes in evaluation routine.
 1953: * Sat Sep 15 2001 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre1d (RPL/2)
 1954: - conditional structures can be used in equations.
 1955: * Fri Sep 14 2001 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre1c (RPL/2)
 1956: - Minor bugfixes in makefile.
 1957: * Sat Sep  8 2001 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre1b (RPL/2)
 1958: - CONVERT is written;
 1959: - CYCLE, FOR/NEXT, FOR/STEP, START/NEXT, START/STEP, DO/UNTIL/END and
 1960: WHILE/REPEAT/END can now be used in an equation;
 1961: - I fix some troubles with evaluation subroutine;
 1962: - db3 library is added.
 1963: * Thu Sep  6 2001 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre1a (RPL/2)
 1964: - add rplconvert and rplunits sources;
 1965: - add CONVERT definition (but it does not work).
 1966: * Mon Sep  3 2001 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre1 (RPL/2)
 1967: - initial public release (GPL).
 1968: * Thu Apr  2 1998 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre0 (RPL/2)
 1969: - RPL is rewritten from scratch and renamed RPL/2.
 1970: #* 1992 BERTRAND JoŽl rpl-3.02 (RPL-387)
 1971: #- minor bugfixes.
 1972: #* 1991 BERTRAND JoŽl rpl-3.01 (RPL-387)
 1973: #- arithmetic processor support is added to improve global performances.
 1974: #* 1991 BERTRAND JoŽl rpl-3.00 (RPL-386)
 1975: #- idem... but on an i386DX...
 1976: #* 1990 BERTRAND JoŽl rpl-2 (RPL-6809)
 1977: #- a new release on a more powerfull processor and with new functions and an
 1978: #built-in editor. It has been written on a SMT-Goupil G3-6809 running
 1979: #Flex9 (320 KB of RAM and a graphic card used to draw 512*256 graphics in
 1980: #8 colors)
 1981: #* 1989 BERTRAND JoŽl rpl-1 (RPL-6502)
 1982: #- initial release (only an historic interest) written on an ORIC Atmos 48K.
 1983: #No graphic was provided.

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