April 2025 - GiNaC-devel

printing of class power
by Stefan Weinzierl 12 Feb '26

12 Feb '26

Dear all, happy new year to everybody and my apologies for coming up with a potential bug report shortly after a new release. The code snippet symbol x("x"); ex f = 2*x; ex g = pow(x,5); f.print(GiNaC::print_context(std::cout)); std::cout << std::endl; g.print(GiNaC::print_context(std::cout)); std::cout << std::endl; will print 2*x [power object] Is that really intentional? The behaviour is the same in GiNaC 1.8.7 and 1.8.8. Best wishes, Stefan

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request to fix download page
by American Citizen 01 May '25

01 May '25

Could someone please fix the broken links for the https page for ginac.git download? The link https://www.ginac.de/ginac.git/ on the Download page https://www.ginac.de/Download.html and the main page https://www.ginac.de/ is broken and result in a 404 Not Found error from either webpage. > > Not Found > > The requested URL was not found on this server. > > ------------------------------------------------------------------------ > Apache Server at www.ginac.de Port 443 > Thank you for your prompt attention to this matter, timestamp 1:27:02 PM PDT, Tuesday 29-April-2025

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ginac-1.8.8/cln-1.3.7/gcc-15.1.0 test failures
by Andrey G. Grozin 30 Apr '25

30 Apr '25

Hello *, I've compiled cln-1.3.7 and ginac-1.8.8 by gcc-15.1.0 on Gentoo linux (I'm the maintainer of the ginal package in this distro). Everything's fine. But when I run ginac tests, I get x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../config -I./../ginac -I../ginac -DIN_GINAC -O2 -march=alderlake -mabm -mno-cldemote -mno-kl -mno-pconfig -mno-sgx -mno-widekl -mshstk --param=l1-cache-line-size=64 --param=l1-cache-size=32 --param=l2-cache-size=24576 -pipe -c -o exam_archive.o exam_archive.cpp exam_archive.cpp: In function ‘unsigned int numeric_complex_bug()’: exam_archive.cpp:104:17: error: reference to ‘complex’ is ambiguous 104 | complex(one, one), | ^~~~~~~ In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/15/include/g++-v15/tuple:40, from /usr/lib/gcc/x86_64-pc-linux-gnu/15/include/g++-v15/functional:55, from ./../ginac/ptr.h:29, from ./../ginac/basic.h:27, from ./../ginac/ginac.h:28, from exam_archive.cpp:23: /usr/lib/gcc/x86_64-pc-linux-gnu/15/include/g++-v15/bits/stl_pair.h:105:11: note: candidates are: ‘template<class _Tp> class std::complex’ 105 | class complex; | ^~~~~~~ In file included from ./../ginac/numeric.h:30, from ./../ginac/ginac.h:40: /usr/include/cln/complex.h:22:19: note: ‘const cln::cl_N cln::complex(const cl_R&, const cl_R&)’ 22 | extern const cl_N complex (const cl_R& a, const cl_R& b); | ^~~~~~~ exam_archive.cpp:105:17: error: reference to ‘complex’ is ambiguous 105 | complex(one, three_fp), | ^~~~~~~ /usr/lib/gcc/x86_64-pc-linux-gnu/15/include/g++-v15/bits/stl_pair.h:105:11: note: candidates are: ‘template<class _Tp> class std::complex’ 105 | class complex; | ^~~~~~~ /usr/include/cln/complex.h:22:19: note: ‘const cln::cl_N cln::complex(const cl_R&, const cl_R&)’ 22 | extern const cl_N complex (const cl_R& a, const cl_R& b); | ^~~~~~~ exam_archive.cpp:106:17: error: reference to ‘complex’ is ambiguous 106 | complex(three_fp, one), | ^~~~~~~ /usr/lib/gcc/x86_64-pc-linux-gnu/15/include/g++-v15/bits/stl_pair.h:105:11: note: candidates are: ‘template<class _Tp> class std::complex’ 105 | class complex; | ^~~~~~~ /usr/include/cln/complex.h:22:19: note: ‘const cln::cl_N cln::complex(const cl_R&, const cl_R&)’ 22 | extern const cl_N complex (const cl_R& a, const cl_R& b); | ^~~~~~~ exam_archive.cpp:107:17: error: reference to ‘complex’ is ambiguous 107 | complex(three_fp, three_fp) | ^~~~~~~ /usr/lib/gcc/x86_64-pc-linux-gnu/15/include/g++-v15/bits/stl_pair.h:105:11: note: candidates are: ‘template<class _Tp> class std::complex’ 105 | class complex; | ^~~~~~~ /usr/include/cln/complex.h:22:19: note: ‘const cln::cl_N cln::complex(const cl_R&, const cl_R&)’ 22 | extern const cl_N complex (const cl_R& a, const cl_R& b); | ^~~~~~~ exam_archive.cpp:108:9: error: could not convert ‘{<expression error>, <expression error>, <expression error>, <expression error>}’ from ‘<brace-enclosed initializer list>’ to ‘std::vector<cln::cl_N>’ 108 | }; | ^ | | | <brace-enclosed initializer list> Any ideas? Andrey

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[SCM] GiNaC -- a C++ library for symbolic computations branch master updated. release_1-4-0-788-g97b3c165
by git service 30 Apr '25

30 Apr '25

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 97b3c165ba38a5c6dbed4091bd81962b2c4e124d (commit) from 528fe6ff1ec07b75edf4a320def79f72396ca7df (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 97b3c165ba38a5c6dbed4091bd81962b2c4e124d Author: Vladimir V. Kisil <V.Kisil(a)leeds.ac.uk> Date: Wed Apr 30 00:16:26 2025 +0200 [PATCH] Fix ambiguity in calling complex constructor (GCC 15). Reported by Andrey G. Grozin <A.G.Grozin(a)inp.nsk.su>. ----------------------------------------------------------------------- Summary of changes: check/exam_archive.cpp | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) hooks/post-receive -- GiNaC -- a C++ library for symbolic computations

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