File:  [local] / rpl / ChangeLog
Revision 1.117: download - view: text, annotated - select for diffs - revision graph
Fri May 18 09:30:31 2012 UTC (11 years, 11 months ago) by bertrand
Branches: MAIN
CVS tags: HEAD
Fin de la réécriture de la gestion des signaux.

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

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