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April 2020

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[SCM] GiNaC -- a C++ library for symbolic computations branch, master, updated. release_1-4-0-649-g3d5c3028
by Richard B. Kreckel 08 Apr '20

08 Apr '20

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 3d5c30286146e192d4c22cbb989997cdfe306200 (commit) via 8198fb8eb7e0072c4b2805ba49ad0089fa9a149d (commit) via 4f0b17af13eb5f7f34fdab171c6d630a77badb3d (commit) from 9985e28882888663fd8e43e8c59728ddcad552d0 (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 3d5c30286146e192d4c22cbb989997cdfe306200 Author: Richard Kreckel <kreckel(a)ginac.de> Date: Tue Apr 7 23:56:25 2020 +0200 [PATCH] Check number of parameters when reading function from archive. Functions where looked up by their function name in archives. However, some functions have overloads for different numbers of parameters ('zeta', 'G', 'psi'). Reading archives could pick the wrong overload. Fixed by requiring that the actual number of function parameters in the archive node must equal the function's declared number of parameters. Thanks to Feng Feng for reporting this problem. commit 8198fb8eb7e0072c4b2805ba49ad0089fa9a149d Author: Richard Kreckel <kreckel(a)ginac.de> Date: Wed Jan 8 00:03:50 2020 +0100 Update some compiler versions. commit 4f0b17af13eb5f7f34fdab171c6d630a77badb3d Author: Richard Kreckel <kreckel(a)ginac.de> Date: Tue Jan 7 23:41:40 2020 +0100 Change www.ginac.de urls to https. ----------------------------------------------------------------------- Summary of changes: AUTHORS | 2 +- ChangeLog | 2 +- GiNaC.spec.in | 4 ++-- INSTALL | 8 ++++---- INSTALL.CMake | 2 +- README | 4 ++-- check/match_bug.cpp | 4 ++-- configure.ac | 2 +- doc/reference/Doxyfooter.in | 2 +- doc/tutorial/ginac.texi | 6 +++--- ginac/function.cppy | 8 +++++--- ginac/numeric.cpp | 2 +- 12 files changed, 24 insertions(+), 22 deletions(-) hooks/post-receive -- GiNaC -- a C++ library for symbolic computations

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Re: [GiNaC-devel] [GiNaC-list] archive/unarchive on functions with a variable number of arguments
by Vladimir V. Kisil 06 Apr '20

06 Apr '20

Dear All, It seems there is indeed an issue with archiving zeta2, since both versions has the same name (it may be similar issues with other overloaded function names). I do not know what is zeta, but I am attaching a patch fixing it. To have the same printout of the function as before, a new function zeta2_print_dflt() has to be introduced. Best wishes, Vladimir -- Vladimir V. Kisil http://www.maths.leeds.ac.uk/~kisilv/ Book: Geometry of Mobius Transformations http://goo.gl/EaG2Vu Software: Geometry of cycles http://moebinv.sourceforge.net/ Jupyter: https://github.com/vvkisil/MoebInv-notebooks >>>>> On Tue, 31 Mar 2020 04:42:05 +0000, Feng Feng <f.feng(a)outlook.com> said: FF> Hi all, FF> I came across a problem about the archive and unarchive on FF> functions with a variable number of arguments. for example, the FF> following c++ code produces the output: zeta(10,x) :> FF> 1/93555*Pi^10. it seems that the unarchive just return FF> zeta(10). FF> Best regards! Feng FF> //--- FF> symbol x("x"); ex zx = zeta(10,x); FF> archive ar_out; ar_out.archive_ex(zx, "zx"); ofstream FF> out("tmp.gar"); out << ar_out; out.close(); FF> lst syms = {x}; archive ar_in; ifstream in("tmp.gar"); in >> FF> ar_in; in.close(); FF> cout << zx << " :> " << ar_in.unarchive_ex(syms,"zx") << FF> endl; FF> //--- _______________________________________________ GiNaC-list FF> mailing list GiNaC-list(a)ginac.de FF> https://www.ginac.de/mailman/listinfo/ginac-list

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