Return to ChangeLog CVS log

Up to [local] / rpl

Un certain nombre de régressions du nouveau parser ont été corrigées.
Le nouvel allocateur a été amélioré et corrigé. L'instruction DETACH
provoque encore un segfault lors de la libération des données du processus fils.

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