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Correction des fuites de mémoire à l'ouverture de sqlite (lorsque la base est censée exister mais qu'elle n'existe pas)
Correction des makefiles pour qu'ils soient moins verbeux.
Ajout de l'écriture des fichiers binaires (listes, entiers, réels, complexes).

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