File:  [local] / rpl / ChangeLog
Revision 1.61: download - view: text, annotated - select for diffs - revision graph
Sat Mar 12 15:33:33 2011 UTC (9 years ago) by bertrand
Branches: MAIN
CVS tags: HEAD
Ajout des sockets et fichiers séquentiels de type FLOW.

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

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