File:  [local] / rpl / ChangeLog
Revision 1.1: download - view: text, annotated - select for diffs - revision graph
Tue Jan 26 15:22:44 2010 UTC (10 years, 2 months ago) by bertrand
Branches: MAIN
CVS tags: HEAD
Initial revision

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

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