File:  [local] / rpl / ChangeLog
Revision 1.74: download - view: text, annotated - select for diffs - revision graph
Mon Jul 25 07:44:51 2011 UTC (8 years, 8 months ago) by bertrand
Branches: MAIN
CVS tags: HEAD
En route pour la 4.1.2.

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

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