File:  [local] / rpl / ChangeLog
Revision 1.94: download - view: text, annotated - select for diffs - revision graph
Mon Nov 21 21:46:42 2011 UTC (8 years, 4 months ago) by bertrand
Branches: MAIN
CVS tags: rpl-4_1_4, HEAD
Mises à jour de lapack et blas. Ajout d'un patch pour ncurses.

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

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