Diff for /rpl/ChangeLog between versions 1.1.1.1 and 1.215

version 1.1.1.1, 2010/01/26 15:22:44 version 1.215, 2015/01/28 21:47:26
Line 1 Line 1
   * Mon Jan 5 2015 BERTRAND Joël <rpl@systella.fr> rpl-4.1.20 (RPL/2)
   - major regression introduced in 4.1.19 is fixed in parser. << 1 -> << exp >> >>
   returned sytax error;
   - compilation() now returns an error if a definition name contains invalid
   characters instead of BUG();
   - zlib is upgraded;
   - sqlite and openssl are upgraded;
   - new buffercached  allocator is added;
   - giac is upgraded to 1.1.4;
   - Gnuplot is upgraded to 5.0.0.
   * Mon Jan 5 2015 BERTRAND Joël <rpl@systella.fr> rpl-4.1.19 (RPL/2)
   - EQV is added in algebraic input and output subroutines;
   - ncurses and sqlite have been upgraded with last patches;
   - openssl is upgraded to 1.0.1j and Gnuplot is upgraded to 4.6.6;
   - expression simplification subsystem is rewritten from scratch. Now, it does
   not do anything. Only fonctions to convert algebraic expression to and from
   q-tree have been written and successfuly tested;
   - EQV intrinsic is added;
   - major bug is fixed in XOR intrinsic (erroneous truth table with integer
   or real arguments);
   - parser is upgraded. Now, it is possible to write <[[[3]]]> or {{5}} (without
   space) and [[ 3 4 ]]4 catches error;
   - major regression is fixed in recherche_type() (complex type);
   - shebang paths are modified to be computed by configure script (NetBSD issue);
   - ncurses is upgraded.
   * Thu Jul 17 2014 BERTRAND Joël <rpl@systella.fr> rpl-4.1.18 (RPL/2)
   - major regression is fixed in SysV semaphore emulation subsystem (segfault);
   - gmp is upgraded;
   - ncurses is upgraded;
   - empilement_pile_last() is modified to delete argument from current stack if
   it cannot save all arguments (to few arguments error _before_ first call
   to depilement() by parent routine).
   * Wed Apr 23 2014 BERTRAND Joël <rpl@systella.fr> rpl-4.1.17 (RPL/2)
   - semaphores have been removed from s_signaux as POSIX doesn't assure that
   semaphores are synchronized between address spaces without msync();
   - sqlite is upgraded;
   - OpenSSL is upgraded;
   - lapack is upgraded to 3.5.0;
   - use of uninitialized variables is avoided in FORALL;
   - giac is upgraded;
   - units is upgraded;
   - OpenSSL, sqlite and gnuplot are upgraded;
   - major bug is fixed in both FOR and FORALL (segmentation fault if both
   instructions are not followed by a name).
   * Fri Nov 28 2013 BERTRAND Joël <rpl@systella.fr> rpl-4.1.16 (RPL/2)
   - OpenMotif is patched to correctly detect fontconfig;
   - sqlite and ncurses are patched;
   - rpl.inc is fixed;
   - rpl() now sends arguments to RPL/2 subroutine;
   - rpl() prototype is fixed (rpl_home is an unsigned char * not an unsigned char
   **);
   - GSL is upgraded;
   - major bug is fixed in READ intrinsic (Unix device).
   * Fri Sep 6 2013 BERTRAND Joël <rpl@systella.fr> rpl-4.1.15 (RPL/2)
   - RGDL and RGDR (ragged left and ragged right) are added;
   - major bug is fixed in initialization (segfault). It only occurs when RPL/2
   is built with a forced localization;
   - EXIT regression is fixed.
   * Fri Jun 21 2013 BERTRAND Joël <rpl@systella.fr> rpl-4.1.14 (RPL/2)
   - number of pipes between process is reduced;
   - gnuplot is upgraded;
   - libiconv is patched to be built with recent glibc (C11);
   - some race conditions have been fixed;
   - sqlite is upgraded;
   - Major regression is fixed in IFERR/END structure;
   - Major regression is fixed in evaluation(). Local variables were exported
   to called definitions.
   * Mon Apr 1 2013 BERTRAND Joël <rpl@systella.fr> rpl-4.1.13 (RPL/2)
   - integer overflows have been fixed (NEG, ABS, minus);
   - global variables can now be recalled from ATEXIT procedure;
   - ATEXIT registered procedure is now executed even if program is stopped by
   SIGINT;
   - minor bug is fixed in TOKENIZE intrinsic instruction. TOKENIZE did not work on
   a copy of input string;
   - major bug (segfault) is fixed in liste_variables(). It only occurs
   when this function is called with shared variables;
   - all internal data are now stored in 64 bits wide integers (even is 32 bits
   ABI is selected);
   - major bug is fixed in recherche_instruction_suivante(). In some
   circumstances, this function can return a spurious error;
   - new NATIVE*(*) data format is added. By default, native*(*) is used
   to write data without precision loss. It can also be used to write
   complex objects like expressions, lists or tables;
   - major bug is fixed in formateur(). When INT64_MIN was pushed into stack,
   internal value was good but RPL/2 was not able to correctly display
   this value. This bug comes from ABS as ABS(INT64_MIN) cannot be represented
   in integer. All abs(), fabs() and labs() present in source code have been
   checked to avoid this kind of bug;
   - unformatted sockets are now usable as unformatted files;
   - BACKSPACE now runs on unformatted file;
   - major bug is fixed in BACKSPACE that didn't check if '"' characters were
   escaped;
   - CHARACTER*(n) format now counts escaped characters;
   - transliteration is avoid in rpl-core file generation to authorize core
   creation even if a transliteration error is caught;
   - major bug is fixed in evaluation(). System stack was not correctly
   destacked when execution error occurs;
   - major bug is fixed in READ (socket interface);
   - minor bug is fixed in analyse_flux().
   * Wed Feb 27 2013 BERTRAND Joël <rpl@systella.fr> rpl-4.1.12 (RPL/2)
   - bug is fixed in recherche_type(). { "\"" } was not evaluated as expected
   as inner quote was not escaped;
   - CIPHER new intrinsic is added to perform key generation, decryption and
   encryption;
   - CBC-CMAC digest is added;
   - HMAC digest is added;
   - DIGEST intrinsic is added;
   - signal management is fixed to be usable on NetBSD;
   - RPL/CAS autoconfiguration is upgraded;
   - sqlite, openssl, giac, gmp ave been upgraded;
   - SQLITE support is added in SQLQUERY, SQLCONNECT and SQLDISCONNECT.
   * Tue Dec 18 2012 BERTRAND Joël <rpl@systella.fr> rpl-4.1.11 (RPL/2)
   - shared variables are now stored in a tree;
   - lapack is upgraded to 3.4.2;
   - only giac/src is built in rplcas (giac/Makefile.am is modified);
   - gnuplot is upgraded to 4.6.1;
   - giac, units and ncurses are upgraded;
   - interprocess capabilities are removed when RPL/2 cannot run its initialization
   routine to keep operating system as clean as possible;
   - sem_wait() has to catch EINTR in thread_surveillance_signaux();
   - signal management is rewritten to avoid a strange bug on NetBSD. On NetBSD,
   a signal handler can be called within a special thread and not in the
   calling thread;
   - static variables are now written in a variables tree;
   - major bug is fixed in STO intrinsic. STO returns an error when it has
   to create a global variable if intrinsic none (default) is set.
   * Mon Oct 1 2012 BERTRAND Joël <rpl@systella.fr> rpl-4.1.10 (RPL/2)
   - FORALL intrinsic is added;
   - major bug (deadlock) is fixed in CYCLE. Only occurs when CYCLE is called to
   interrupt a loop from a subroutine within a compiled programm;
   - workaround to avoid strange bug on slow network is written in READ
   intrinsic;
   - CRITICAL/END structure is added. When program enters in a critical
   section, all other threads of the same process sleep until program leaves
   critical section.
   * Wed Aug 22 2012 BERTRAND Joël <rpl@systella.fr> rpl-4.1.9 (RPL/2)
   - giac is upgraded to 0.9.8;
   - ncurses is patched with last patches;
   - Sqlite is upgraded to 3.7.13;
   - Units is upgraded to 1.89e;
   - Lapack is upgraded to 3.4.1;
   - LENGTH*(...) format is fixed;
   - some patches have been added to build RPL/2 on NetBSD;
   - escaped characters are fixed in READ and WRITE operations;
   - major bug is fixed in READ intrinsic (on socket). End of file condition
   was randomly caught on slow network;
   - stdin can now handle espaced characters strings in SYSEVAL;
   - --with-gcc-version is added to configure script to force gcc version as
   gfortran 4.7 is broken and crashes with segmentation fault.
   * Mon May 21 2012 BERTRAND Joël <rpl@systella.fr> rpl-4.1.8 (RPL/2)
   - POLL now accepts more than one descriptor and returns informations
   about pollable descriptors;
   - SMPHRTRYDECR now takes timeout value instead of returning when semaphore
   cannot by decremented;
   - signal handlers are fixed to avoid spurious and very rare deadlocks;
   - pari is upgraded;
   - force CFLAGS for tools/file (-O2 -g) to avoid mmap() error;
   - giac, gmp and mpfr have been upgraded.
   * Fri Apr 13 2012 BERTRAND Joël <rpl@systella.fr> rpl-4.1.7 (RPL/2)
   - double quote is escaped in INPUT and PROMPT intrinsic functions;
   - error is returned (instead of warning) when unavailable intrinsic function
   is called;
   - lot of minor bugs have been fixed;
   - ncurses and file are patched;
   - RPL/2 can now be cross compiled (until .deb archive generation);
   - all table, vector and matrix dimensions are now treated as unsigned long;
   - recherche_type() function is modified to use cached memory;
   - gnuplot is upgraded to 4.6.0.
   * Wed Feb 29 2012 BERTRAND Joël <rpl@systella.fr> rpl-4.1.6 (RPL/2)
   - serial line support is added to OPEN (STTY options);
   - multiline inputs are allowed:
   schroedinger:[~/cvs/build/src] > rpl -is
   +++RPL/2 (R) version 4.1.6 (Monday 01/30/12, 10:20:38 CET)
   +++Copyright (C) 1989 à 2011, 2012 BERTRAND Joël
   
   +++Ce logiciel est un logiciel libre sans aucune garantie de fonctionnement.
   +++Pour plus de détails, utilisez la commande 'warranty'.
   
   RPL/2> [[ 1 2 3 ]
   + 001> [ 4 5 6 ]
   + 002> [ 7 8 9 ]]
   
   1: [[ 1 2 3 ]
       [ 4 5 6 ]
       [ 7 8 9 ]]
   RPL/2> [[ 1 23 ]
   + 001> [ 4 5 6 ]]
   +++Erreur : Erreur de syntaxe [19267]
   
   1: [[ 1 2 3 ]
       [ 4 5 6 ]
       [ 7 8 9 ]]
   RPL/2> [ 1 2 3
   + 001> annulation
   RPL/2> abort
   
   'annulation' is done by pressing CTRL+g, and abort by CTRL+d on empty line.
   * Tue Jan 17 2012 BERTRAND Joël <rpl@systella.fr> rpl-4.1.5 (RPL/2)
   - ncurses, sqlite and openssl have been upgraded;
   - major bug is fixed in ** (integer integer **) when first argument is equal to
   -1;
   - major bug is fixed in signal management. With new signal management, thread or
   process were not signalized anymore by POSIX signals. If a thread or a process
   was sleeping, it was not interrupted;
   - minor bug is fixed in OPEN intrinsic. Now, when a socket is open, its default
   adress is set to 0.0.0.0;
   - new rule is added to main makefile (make debian) to build deb package;
   - new benchmark (Xeon W3520 @ 2.67GHz) :
   schroedinger:[~/cvs/bench] > ./bench.rpl 
   +++RPL/2 (R) version 4.1.5 (Friday 12/02/11, 12:18:23 CET)
   +++Copyright (C) 1989 à 2010, 2011 BERTRAND Joël
   Number of scalar operations per second and per core : 3809121.83444626
   schroedinger:[~/cvs/bench] > 
   - recherche_type() did not convert huge integer in real. Now,
   18446744072742037448 is converted into real as value cannot be stored in
   RPL/2 integer type;
   - WFSOCK is modified to handle unconnected sockets;
   - REGEX is added;
   - RESTART is added (execvp() on main RPL/2 process);
   - copie_objet() now returns same MTX (struct_mutex) even if caller wait for
   a real copy. Now, struct_mutex contains locks owner. On Linux or Solaris (for
   example), it is possible to lock mutex from a thread and unlock the same mutex
   from another thread. On NetBSD, system crashes.
   * Mon Nov 21 2011 BERTRAND Joël <rpl@systella.fr> rpl-4.1.4 (RPL/2)
   - rplcas/@GIAC@/src/config.h is removed to avoid compilation bug. config.h
   written by configure script was overloaded by src/config.h;
   - lot of compilation warnings have been fixed;
   - lapack and blas have been upgraded;
   - ncurses, sqlite and giac have been upgraded;
   - LCASE, UCASE, POS and SUB now handle escape characters;
   - major bug is fixed in INT (numerical integration was unusable as type
   checking condition was always false);
   - SIZE, CHR and NUM can handle strings with escape characters;
   - lot of patches for Android and OS/2;
   - configure.ac is improved to remove operating systems special cases.
   - major bug is fixed in DRWS (SDAT was not used...);
   - lists, and integer, real and complex numbers can now be written in
   unformatted files;
   - rplawk makefile is fixed to avoid build process bug. Warning, with these
   modifications, sources tree has to be writable.
   * Wed Sep 21 2011 BERTRAND Joël <rpl@systella.fr> rpl-4.1.3 (RPL/2)
   - Linux port, MacOS X port and xBSD ports are tested and fully fonctionnal;
   - libsigsegv is added;
   - OpenMotif is added;
   - all internal signal handlers are rewritten to avoid POSIX signal usage
   and to be async signal safe;
   - SIGSEGV signal handler is rewritten;
   - SREV intrinsic is added.
   * Tue Aug 9 2011 BERTRAND Joël <rpl@systella.fr> rpl-4.1.2 (RPL/2)
   - I have fixed a lot of bugs in gpp preprocessor (and sent gpp 3.0 to official
   gpp developer). Now, macros like
   
       #define foo foo bar
   
   is evaluated without recursion. gpp 2.24 crashed on stack overflow.
   - LIMIT is added;
   - Now, undefined values like 'infinity/infinity' are computed. Result is
   undef constant;
   - infinity constant is added.
   * Sun Jul 24 2011 BERTRAND Joël <rpl@systella.fr> rpl-4.1.1 (RPL/2)
   - VERSION now returns OS type, architecture and ABI;
   - configure script is updated. New flags :
       --with-32bits-abi
       --with-64bits-abi
       --with-rplcas
   Please not that RPL/CAS is not built by default;
   - Lapack is upgraded to 3.3.1.
   * Mon Jun 27 2011 BERTRAND Joël <rpl@systella.fr> rpl-4.1.0 (RPL/2)
   - New stable release.
   * Fri Jun 22 2011 BERTRAND Joël <rpl@systella.fr> rpl-4.1.0.prerelease.4 (RPL/2)
   - some minor changes have been done in instruction_int() to accept new argument
   types;
   - interface_cas.cpp now catchs exceptions returned by giac.
   * Fri Jun 24 2011 BERTRAND Joël <rpl@systella.fr> rpl-4.1.0.prerelease.3 (RPL/2)
   - INT intrinsic now uses RPLCAS to compute symbolic integration;
   - minor bug is fixed in INTRINSIC function. Now, this function gives same
   result with ou without -p switch.
   * Wed Jun 22 2011 BERTRAND Joël <rpl@systella.fr> rpl-4.1.0.prerelease.2 (RPL/2)
   - memory caching is added to new variable tree.
   * Tue Jun 21 2011 BERTRAND Joël <rpl@systella.fr> rpl-4.1.0.prerelease.1 (RPL/2)
   - SPAWN is now usable with new variable management;
   - MEM is rewritten;
   - PRUSR is rewritten;
   - merge 4_0 branch into HEAD;
   - CLUSR is rewritten;
   - -p flag is now usable;
   - New benchmark:
   cauchy:[~/rpl/bench] > ./bench.rpl 
   +++RPL/2 (R) version 4.1.0.prerelease.1 (lundi 20/06/2011, 23:00:45 CEST)
   +++Copyright (C) 1989 à 2010, 2011 BERTRAND Joël
   Number of scalar operations per second and per core : 2625369.22710792
   * Mon Jun 20 2011 BERTRAND Joël <rpl@systella.fr> rpl-4.1.0.prerelease.0 (RPL/2)
   - New variable management is written. Please note that -p flag does not work
   and all multithread/multitask capabilities have been disabled until this
   new subsystem shall be validated.
   * Thu May 09 2011 BERTRAND Joël <rpl@systella.fr> rpl-4.0.23 (RPL/2)
   - major bug is fixed in STD format (1E7 sq prints 1);
   - major bug is fixed in READ intrinsic (socket). This bug was introduced
   by a new feature in glibc.
   * Thu Apr 14 2011 BERTRAND Joël <rpl@systella.fr> rpl-4.0.22 (RPL/2)
   - by default, RPL/2 uses "NONE" IMPLICIT when it's started in batch mode and
   "ALL" IMPLICIT when it runs in interactive mode;
   - when "NONE" IMPLICIT is set, STO intrinsic raises an error when it is used
   to create or modify a global variable. Now, with "NONE" IMPLICIT, you have
   to use SAVE to manipulate global variables;
   - replace erroneous TAB by TBL in evaluation() and formateur_fichier()
   subroutines;
   - fix major memory access violation in evaluation subroutine. Only occurs
   when 'X(i,j)' is evaluated on a matrix and when (i,j) points out of bounds;
   - fix major bug in evaluation subroutine. 'X(i)' returns execution error
   when X was a vector or a table.
   * Sun Apr 04 2011 BERTRAND Joël <rpl@systella.fr> rpl-4.0.21 (RPL/2)
   - Gnuplot is upgraded;
   - flag 34 is now used to enable or disable control character evaluation;
   - major bug is fixed in P->R intrinsic function when argument type is
   complex and degree mode is set;
   - L->T and T->L are added;
   - OLD filetype is fixed;
   - FLOW socket support is added;
   - FLOW sequential files are added;
   - new escape sequence is added to handle flow files (\x + hexadecimal code).
   Known escape sequences are \", \b, \n, \t, \x?? and \\.
   * Sun Mar 06 2011 BERTRAND Joël <rpl@systella.fr> rpl-4.0.20 (RPL/2)
   - Ncurses is upgraded to 5.8;
   - ALARM is fixed by filling isdst field;
   - catch ECONNRESET in write intrinsic to return an execution error instead of
   system one;
   - fix a typo in HELP intrinsic;
   - Openssl is upgraded to 1.0.0d, sqlite to 3.7.5 and readline to 6.2;
   - Lapack is upgraded to 3.3.0;
   - libmtmalloc is now default Solaris allocator;
   - ncurses is upgraded;
   - regression introduced by 4.0.19 is fixed in signal management.
   Interruption1() could be called from itself and raises bus error (on sparc) or
   segmentation fault;
   - sqlite is upgraded to 3.7.4;
   - OpenSSL is upgraded to 1.0.0c;
   - syntax error is correctly checked ( (2+,0) does not crash RPL/2 anymore);
   - characters are tested in recherche_type() to avoid names like '12+';
   - gnuplot is upgraded to 4.4.2 due to major bugs.
   * Thu Sep 23 2010 BERTRAND Joël <rpl@systella.fr> rpl-4.0.19 (RPL/2)
   - due to a very strange bug I've only seen on Solaris, ptmalloc3 is removed.
   Solaris libresolv randomly uses ptmalloc3 and system allocator and makes heap
   corruption. As internal memory management have been improved, a best fit
   allocator like ptmalloc3 is not required anymore;
   - gnuplot is upgraded to 4.4.1;
   - deadlock is fixed in signal handlers: same mutex was used in standard
   subroutines (without protected sections by sigprocmask() or pthread_sigmask())
   and signal handlers. A new signal handler specific mutex is added;
   - minor bug is fixed in evaluation() subroutine. In { X 0 PI }, PI is a function
   that has to be evaluated by ->NUM;
   - rplfile build process is modify to be sure that rplfile is not modified
   after rpl build stage (to be sure that rplfile checksum is not modified after
   rpl compilation);
   - AWK is replaced by rplawk. rplawk is original awk written by Brian Kernighan,
   modified to remove yacc code and renamed;
   - some workarounds have been written to not use buggy klibc SystemV IPCS.
   ABORT now works on eComStation;
   - sqlite is upgraded to 3.7.2;
   - bug is fixed in software interrupts. When both process have different PID,
   parent process was not interrupted if it is not group master process. To fix
   this bug, SIGINJECT signal is not sent by child process but by control thread
   in parent process;
   - minor bug is fixed in data injection (POKE) that does not work as expected
   when child process is protected by NRPROC.
   * Thu Aug 26 2010 BERTRAND Joël <rpl@systella.fr> rpl-4.0.18 (RPL/2)
   - --enable-sysv-sems is added to configure script to use SystemV semaphores
   functions instead of POSIX functions. This function is disabled or forced on
   systems that does not provide correct POSIX or SysV semaphores subsystem;
   - a dirty but not quick patch is written to workaround broken siginfo
   structures. This patch has been successfully tested. It uses a segment of
   shared memory (Posix or SysV) and some semaphores (Posix or SysV) by process
   (Unix PID);
   - some OpenBSD's hacks are added;
   - broken siginfo->si_pid field is now checked by configure script;
   - SWI now sends SIGCONT to interrupted process to start interrupt without delay;
   - random generator is cloned by SPAWN;
   - in transliteration subroutine : '\r' is added after all '\n' in OS/2 port;
   - getaddrinfo is hardcoded when host system does not provide getaddrinfo
   or freeaddrinfo;
   - RPL/2 can now use SystemV semaphores when POSIX semaphores are unavailable;
   - major bug is fixed in CHR intrinsic when obtained character is not printable;
   - Lapack is upgraded to 3.2.2;
   - OS/2 (eComStation 2.0 with EMX 0.9d) support is added;
   - TOKENIZE is now able to convert escape sequences;
   - ATPOKE and CLRATPOKE new intrinsics are added;
   - --enable-full-static configure flag is added. With this flag, mysql and
   postgresql libraries are statically linked in rpl executable;
   - units Makefile is modified to avoid readline and ncurses usages;
   - sqlite is upgraded to 3.7.0.1;
   - units is upgraded to 1.88;
   - another major bug is fixed in the same variable creation subroutine.
   Level 0 and 1 variables adresses were swapped when a global variable masked
   a name of RPL/2 routine;
   - major bug is fixed in global variable creation subroutine. When a global
   variable was created and when a local variable existed with the same name,
   computed address of global variable was wrong;
   - src/Makefile.am is modified to avoid a bug on several systems. libptmalloc3
   is forced in front of all libraries.
   * Tue Jul 13 2010 BERTRAND Joël <rpl@systella.fr> rpl-4.0.17 (RPL/2)
   - BACKTRACE intrinsic is added;
   - major bug is fixed in SELECT/DEFAULT/END conditional structure. Only occurs
   when this structure is included in IFERR/THEN/END structure and when an error is
   caught;
   - major bug is fixed in analyse() subroutine. When evaluation() returned error
   in a compiled program, analyse() caught this error twice and randomly aborted
   with a segmentation error;
   - TRIM and TOKENIZE replace both '\n' and '\t' by regular spaces;
   - ATEXIT subroutine begins with an implicit CSTOP to avoid multiple stop
   signals;
   - memory leak is fixed in ROW+. It only occurs when a row is added to an empty
   matrix.
   * Thu Jun 24 2010 BERTRAND Joël <rpl@systella.fr> rpl-4.0.16 (RPL/2)
   - minor bug is fixed in evaluation() subroutine. With this patch, same program
   returns same result with or without -p flag;
   - ncurses 5.7 is upgraded to 20100619;
   - openssl is upgraded to 1.0.0a;
   - interrupt stacks are now FIFO instead of LIFO;
   - debug memory allocation subroutines are improved to run in multithreaded
   programs;
   - some memory leaks are fixed in process management (SPAWN and DETACH);
   - version verification is added to shared objects;
   - -D_GNU_SOURCE is added to ptmalloc3 makefile to avoid a major bug on 64 bits
   linux (false mremap() prototype);
   - major bug is fixed in rpliconv. getc() returns an int, not a unsigned char.
   * Sun May 23 2010 BERTRAND Joël <rpl@systella.fr> rpl-4.0.15 (RPL/2)
   - all '-' are replaced by '_' in random generator list;
   - minor memory leak is fixed in OPEN intrinsic (socket);
   - major bug is fixed in IFERR structure. Only occurs in compiled program;
   - major bug is fixed in copie_objet() and liberation(). Only concerns
   format in FCH (file descriptor) and SCK (socket descriptor);
   - debug routines are improved;
   - PROCID is added;
   - MEMLOCK and MEMUNLOCK are added. MEMLOCK forces a process to remain in memory
   and to not use swap;
   - major bug is fixed in sql support. SQL connections were closed in all chield
   process;
   - standard allocator (malloc()/free()) is replaced by ptmalloc3 due to some bugs
   discovered in Solaris thread safe allocators (libmalloc and libumem) that
   are first fit class allocators. Solaris libmtmalloc works better and is
   a best fit class allocator but its performance is poor than ptmalloc3
   performance;
   - major bug is fixed in ROW+ intrinsic (new row was not added where it
   should);
   - minor bugs are fixed in interruptions.c (semaphores values when error is
   caught);
   - major bug is fixed in STOP intrinsic. STOP was unable to stop any process
   created by SPAWN;
   - SIGFABORT is added. When process receives SIGFSTOP, it tries to execute
   ATEXIT. If it receives SIGFABORT, it does not;
   - ONEXIT is renamed in ATEXIT;
   - ONEXIT new intrinsic is added.
   * Wed Apr 21 2010 BERTRAND Joël <rpl@systella.fr> rpl-4.0.14 (RPL/2)
   - major bug is fixed in static and shared variables initialization subroutine.
   This bug only occurs when RPL/2 tries to create a shared or static variable
   from an expression;
   - major bug is fixed in copie_etat_processus(). A field that contains
   information about shared variable was not copied to new processus structure;
   - some little memory leaks are fixed in evaluation(), recherche_type() and
   sequenceur(). They only occured when syntax error were caught;
   - IMPLICIT causes execution error instead system error;
   - Hurd support is improved but currently broken because Hurd does not support
   SIG_INFO. Work in progress;
   - OpenBSD specific support is removed from sources;
   - support for Mac OS X and Windows/Cygwin is added.
   * Wed Apr 07 2010 BERTRAND Joël <rpl@systella.fr> rpl-4.0.13 (RPL/2)
   - implicit names can now be disabled by new IMPLICIT intrinsic:
   cauchy:[~/cvs/test] > cat implicit.rpl
   #!/usr/local/bin/rpl -sp
   TEST
   <<
       "none" implicit
   
       1 -> Z
       <<
           Z disp
           'Z' disp
       >>
   
       'Z' disp
       Z disp // Undefined
   >>
   
   cauchy:[~/cvs/test] > LANG=C ./implicit.rpl
   +++RPL/2 (R) version 4.0.13 (Wednesday 04/07/10, 13:57:44 CEST)
   +++Copyright (C) 1989 to 2009, 2010 BERTRAND Joel
   1
   'Z'
   'Z'
   +++System : Invalid implicit name [6631]
   cauchy:[~/cvs/test] > 
   
   RPL/2 aborts because the last Z is undefined and not protected by ''.
   By default, implicit is set to "ALL";
   - sqlite is upgraded to 3.6.23.1;
   - openssl is upgraded to 1.0.0;
   - major bug is fixed in RETURN intrinsic. It only occurs in evaluation
   subroutine;
   - table variable can now be sorted by SORT;
   - some regressions between libtool 1.x and 2.x are fixed by workarouds in
   Makefiles;
   - -a command line option analyzes program (structure and syntax) and
   sends preprocessor output to standard output. This option is used by
   rplc (RPL/2 compiler).
   * Tue Mar 09 2010 BERTRAND Joël <rpl@systella.fr> rpl-4.0.12 (RPL/2)
   - in formatted file, string format returned a variable length string even if
   format was 'CHARACTER*(n)' (n characters string). Now, 'CHARACTER*(*)' returns
   a variable length string and 'CHARACTER*(n)' a fixed length string;
   - keyed access files support is added. Currently, only formatted files are
   supported;
   - direct access files support is added. Currenlty, these files can only be used
   in formatted mode;
   - virtual variables are now writte in UTF-8 and all special characters
   in string are escaped;
   - all formatted files are now converted into UTF-8;
   - all file and unix socket names created by RPL/2 are now UTF-8 compliant;
   - RPL/2 tools (rpliconv, rplfile, rplpp and rplconvert) are now checked before
   each execution (md5 and sha1 sums) to enhance security. If one of these tools
   have been modified between RPL/2 compilation and current execution, RPL/2 aborts
   on a non recoverable system error;
   - openssl and sqlite3 libraries are added;
   - RPL_HOME env variable is added. When RPL/2 is called from librpl, this
   variable indicates RPL/2 root directory. If it is not set, root path
   is given by configure script (d_exec_path);
   * Thu Mar 03 2010 BERTRAND Joël <rpl@systella.fr> rpl-4.0.11 (RPL/2)
   - configure.in and makefile.am's are modified to add Cygwin support. Interix
   support is broken;
   - memory leak is fixed in recherche_type();
   - TeX files are now written in UTF-8 even default locale differs;
   - minor bug is fixed in ->STR (escaped characters);
   - minor bug is fixed in ->Q intrinsic. Resultat is returned as integer
   fraction intead real one;
   - SIGN now returns (0,0) instead (nan,nan) when complex argument is null;
   - Makefile.am are modified to authorize parallel builds;
   - minor bug is fixed in CR intrinsic. CR sends a carriage return to printer
   and writes warning to standard output;
   * Wed Feb 10 2010 BERTRAND Joël <rpl@systella.fr> rpl-4.0.10 (RPL/2)
   - escape codes are now converted in formateur(), not in recherche_type() to
   avoid a minor bug in EDIT and VISIT intrinsics;
   - minor bug is fixed in formateur_reel();
   - file-5.03 is patched to avoid bus error on systems that require memory
   alignment;
   - minor bug is fixed in evaluation(). Error returned by RPL/C external functions
   were able to be avoided by evaluation routine.
 * Tue Jan 26 2010 BERTRAND Joël <rpl@systella.fr> rpl-4.0.9 (RPL/2)  * Tue Jan 26 2010 BERTRAND Joël <rpl@systella.fr> rpl-4.0.9 (RPL/2)
 - New benchmark on same hardware than old one :  - New benchmark on same hardware than old one :
 cauchy:[~/rpl/bench] > ./bench.rpl   cauchy:[~/rpl/bench] > ./bench.rpl 
Line 1337  WHILE/REPEAT/END can now be used in an e Line 1881  WHILE/REPEAT/END can now be used in an e
 * Mon Sep  3 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre1 (RPL/2)  * Mon Sep  3 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre1 (RPL/2)
 - initial public release (GPL).  - initial public release (GPL).
 * Thu Apr  2 1998 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre0 (RPL/2)  * Thu Apr  2 1998 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre0 (RPL/2)
 - RPL is rewritten from scratch and named RPL/2.  - RPL is rewritten from scratch and renamed RPL/2.
 #* 1992 BERTRAND Joël rpl-3.02 (RPL-387)  #* 1992 BERTRAND Joël rpl-3.02 (RPL-387)
 #- minor bugfixes.  #- minor bugfixes.
 #* 1991 BERTRAND Joël rpl-3.01 (RPL-387)  #* 1991 BERTRAND Joël rpl-3.01 (RPL-387)

Removed from v.1.1.1.1  
changed lines
  Added in v.1.215


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