- GiNaC-devel - ginac.de

bugs related to parser
by Cedric Studerus 06 Dec '11

06 Dec '11

Dear GiNaC developer, I'm using GiNaC version 1.6.2 with compiler gcc (Ubuntu/Linaro 4.5.2-8ubuntu4) 4.5.2 When working with the parser to read in user defined functions from strings I noticed 3 things: 1) parsing a user defined function (declared to have 1 argument) from a string does not throw an exception when the string contains this function with zero arguments. 2) parsing products of user defined non-commutative functions returns a commutative product 3) The parser accepts userdefined functions with zero arguments and parsing such a function does not throw when there is 1 argument. I have attached a small file "main.cpp" such that you can reproduce this behavior. I'm using these user defined functions with zero arguments but it looks to me like a hack and I would like to know if you are going to allow them ( e.g. with macro definition) or if you completely suppress them in future releases of GiNaC. Thank you very much! Cedric Studerus

2 1

Release 1.6.2
by Jens Vollinga 06 Nov '11

06 Nov '11

Hi everybody, GiNaC 1.6.6 is out and available. The changes are the following: * Fixed the parser to read GiNaC::lst again. * Fixed a compile warning (relevant to openSUSE build). * Fixed a bug concerning the subsitutions in indexed expressions (subs_options::no_index_renaming was ignored). As always, this release can be downloaded from http://www.ginac.de/Download.html Regards, Jens

1 0

[SCM] GiNaC -- a C++ library for symbolic computations tag, release_1-6-2, created. release_1-4-0-364-gdadfd94
by git＠ginac.de 06 Nov '11

06 Nov '11

This is an automated email from the git hooks/post-receive script. It was generated because a ref change was pushed to the repository containing the project "GiNaC -- a C++ library for symbolic computations". The tag, release_1-6-2 has been created at dadfd94652601011351c18ae020c5b473fc8e0a3 (commit) - Log ----------------------------------------------------------------- commit dadfd94652601011351c18ae020c5b473fc8e0a3 Author: Jens Vollinga <jens.vollinga(a)googlemail.com> Date: Sun Nov 6 15:10:50 2011 +0100 Preparing for release 1.6.2. ----------------------------------------------------------------------- hooks/post-receive -- GiNaC -- a C++ library for symbolic computations

1 0

[SCM] GiNaC -- a C++ library for symbolic computations branch, master, updated. release_1-4-0-364-gdadfd94
by git＠ginac.de 06 Nov '11

06 Nov '11

This is an automated email from the git hooks/post-receive script. It was generated because a ref change was pushed to the repository containing the project "GiNaC -- a C++ library for symbolic computations". The branch, master has been updated via dadfd94652601011351c18ae020c5b473fc8e0a3 (commit) from 99901bd5c74203caece07e3e2948780887a0e822 (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- commit dadfd94652601011351c18ae020c5b473fc8e0a3 Author: Jens Vollinga <jens.vollinga(a)googlemail.com> Date: Sun Nov 6 15:10:50 2011 +0100 Preparing for release 1.6.2. ----------------------------------------------------------------------- Summary of changes: NEWS | 6 ++++++ configure.ac | 8 ++++---- 2 files changed, 10 insertions(+), 4 deletions(-) hooks/post-receive -- GiNaC -- a C++ library for symbolic computations

1 0

release
by Jens Vollinga 03 Nov '11

03 Nov '11

Hi, I am planning to do a release this weekend. Should I wait because there is still something in the (c)making? Regards, Jens

2 1

[SCM] GiNaC -- a C++ library for symbolic computations branch, master, updated. release_1-4-0-363-g99901bd
by git＠ginac.de 03 Nov '11

03 Nov '11

This is an automated email from the git hooks/post-receive script. It was generated because a ref change was pushed to the repository containing the project "GiNaC -- a C++ library for symbolic computations". The branch, master has been updated via 99901bd5c74203caece07e3e2948780887a0e822 (commit) from 265e5f9537e128887655119fc4cc8d3a46f3dcff (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- commit 99901bd5c74203caece07e3e2948780887a0e822 Author: Jens Vollinga <jens.vollinga(a)googlemail.com> Date: Fri Oct 28 21:09:33 2011 +0200 Parser can now read GiNaC lists (lst) defined by braces. This commit completes the bug fix in commit 9a4f392521083d28e1c238e7898ab1d2ac5b73cd. ----------------------------------------------------------------------- Summary of changes: ginac/parser/parser.cpp | 30 ++++++++++++++++++++++++++++++ ginac/parser/parser.h | 3 +++ 2 files changed, 33 insertions(+), 0 deletions(-) hooks/post-receive -- GiNaC -- a C++ library for symbolic computations

2 1

[SCM] GiNaC -- a C++ library for symbolic computations branch, master, updated. release_1-4-0-362-g265e5f9
by git＠ginac.de 22 Oct '11

22 Oct '11

This is an automated email from the git hooks/post-receive script. It was generated because a ref change was pushed to the repository containing the project "GiNaC -- a C++ library for symbolic computations". The branch, master has been updated via 265e5f9537e128887655119fc4cc8d3a46f3dcff (commit) from 9a4f392521083d28e1c238e7898ab1d2ac5b73cd (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- commit 265e5f9537e128887655119fc4cc8d3a46f3dcff Author: Richard Kreckel <kreckel(a)ginac.de> Date: Sat Oct 22 21:37:13 2011 +0200 Fix warning "control reaches end of non-void function". Being careful about this is required to pass the openSUSE build process. ----------------------------------------------------------------------- Summary of changes: ginac/polynomial/mgcd.cpp | 5 ++--- 1 files changed, 2 insertions(+), 3 deletions(-) hooks/post-receive -- GiNaC -- a C++ library for symbolic computations

1 0

Invitación a conectarnos en LinkedIn
by Jose Antonio Garcia Peiro 20 Sep '11

20 Sep '11

Me gustaría añadirte a mi red profesional en LinkedIn. -Jose Antonio Jose Antonio Garcia Peiro Estudiante de Universidad Miguel Hernández de Elche Murcia Area, Spain Confirm that you know Jose Antonio Garcia Peiro: https://www.linkedin.com/e/-smpzss-gssw3e8f-5s/isd/4281103251/npAG8Ge4/?hs=… -- You are receiving Invitation to Connect emails. Click to unsubscribe: http://www.linkedin.com/e/-smpzss-gssw3e8f-5s/pQQaivesQERn6ZpSpQQtivesQEgGd… (c) 2011 LinkedIn Corporation. 2029 Stierlin Ct, Mountain View, CA 94043, USA.

1 0

[SCM] GiNaC -- a C++ library for symbolic computations branch, master, updated. release_1-4-0-361-g9a4f392
by git＠ginac.de 26 Jul '11

26 Jul '11

This is an automated email from the git hooks/post-receive script. It was generated because a ref change was pushed to the repository containing the project "GiNaC -- a C++ library for symbolic computations". The branch, master has been updated via 9a4f392521083d28e1c238e7898ab1d2ac5b73cd (commit) from bb0f99d6298fccb8cf1421fa0c7463c647f543a7 (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- commit 9a4f392521083d28e1c238e7898ab1d2ac5b73cd Author: Jens Vollinga <jens.vollinga(a)googlemail.com> Date: Tue Jul 26 20:39:29 2011 +0200 Quick and dirty bug fix for the parser to read GiNaC::lst again. The parser only accepts lst in the form lst(...) not {...}, though. Function prototype can now have a argument size of 0 to indicate functions with an arbitrary number of arguments (like lst). ----------------------------------------------------------------------- Summary of changes: ginac/parser/default_reader.cpp | 9 +++++++++ ginac/parser/parse_context.h | 15 ++++++++++++++- 2 files changed, 23 insertions(+), 1 deletions(-) hooks/post-receive -- GiNaC -- a C++ library for symbolic computations

1 0

Index renaming in Ginac 1.6.0
by Gerhard Hejc 22 Jul '11

22 Jul '11

Hi, in my application I do a substitution .j by .i in the expression -2*P.j.i*P.n.m*delta.m.i*delta.n.i. With Ginac 1.6.0 the result is -2*P.n.m*P.symbol15.symbol15*delta.m.i*delta.n.i instead of -2*P.n.m*P.i.i*delta.m.i*delta.n.i. Using the subs option "subs_options::no_index_renaming" does not change the behaviour. The reason is that in the function "ex expairseq::subs(const exmap & m, unsigned options) const" the third argument "do_index_renaming" is always true return ex_to<basic>(thisexpairseq(vp, overall_coeff, true); Changing this line to return ex_to<basic>(thisexpairseq(vp, overall_coeff, (options & subs_options::no_index_renaming) == 0)); fixes the problem in my application, but I am not absolutely sure that this does not have any side effects. What do you think? with best regards Gerhard Hejc

2 1