- GiNaC-devel - ginac.de

[SCM] GiNaC -- a C++ library for symbolic computations branch, ginac_1-5, updated. release_1-4-0-243-g37506ee
by git＠ginac.de 06 Jul '10

06 Jul '10

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, ginac_1-5 has been updated via 37506ee54aa46203736d657c6e8a64e695303b64 (commit) via bfbe8f9475f0391f1fae8263bc37eeff813ea1f7 (commit) from f7b1fb1fd4f8e3f653a09d02ea1e4c489f04f8af (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 37506ee54aa46203736d657c6e8a64e695303b64 Author: Jens Vollinga <jensv(a)nikhef.nl> Date: Tue Jul 6 15:30:23 2010 +0200 Preparing for release 1.5.8. commit bfbe8f9475f0391f1fae8263bc37eeff813ea1f7 Author: Jens Vollinga <jensv(a)nikhef.nl> Date: Tue Jul 6 14:38:36 2010 +0200 Removed trailing spaces. (cherry picked from commit dbde7117e88ba61597d6fee18615fe396c291a87) ----------------------------------------------------------------------- Summary of changes: NEWS | 12 ++++++++++++ check/pgcd_infinite_loop.cpp | 4 ++-- configure.ac | 6 +++--- 3 files changed, 17 insertions(+), 5 deletions(-) hooks/post-receive -- GiNaC -- a C++ library for symbolic computations

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[SCM] GiNaC -- a C++ library for symbolic computations branch, master, updated. release_1-4-0-223-gdbde711
by git＠ginac.de 06 Jul '10

06 Jul '10

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 dbde7117e88ba61597d6fee18615fe396c291a87 (commit) from 7769ce49235ed6510785baa0a29801e3a59b563e (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 dbde7117e88ba61597d6fee18615fe396c291a87 Author: Jens Vollinga <jensv(a)nikhef.nl> Date: Tue Jul 6 14:38:36 2010 +0200 Removed trailing spaces. ----------------------------------------------------------------------- Summary of changes: check/pgcd_infinite_loop.cpp | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) hooks/post-receive -- GiNaC -- a C++ library for symbolic computations

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[SCM] GiNaC -- a C++ library for symbolic computations branch, master, updated. release_1-4-0-222-g7769ce4
by git＠ginac.de 06 Jul '10

06 Jul '10

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 7769ce49235ed6510785baa0a29801e3a59b563e (commit) from df823d53c56c762072f534c9f24479090162e33a (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 7769ce49235ed6510785baa0a29801e3a59b563e Author: Jens Vollinga <jensv(a)nikhef.nl> Date: Tue Jul 6 11:23:21 2010 +0200 Texinfo interprets @strong{Note...} as a cross reference and gives a warning about it. Changed the text to avoid this. ----------------------------------------------------------------------- Summary of changes: doc/tutorial/ginac.texi | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) hooks/post-receive -- GiNaC -- a C++ library for symbolic computations

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[SCM] GiNaC -- a C++ library for symbolic computations branch, ginac_1-5, updated. release_1-4-0-241-gf7b1fb1
by git＠ginac.de 06 Jul '10

06 Jul '10

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, ginac_1-5 has been updated via f7b1fb1fd4f8e3f653a09d02ea1e4c489f04f8af (commit) from c84dc83799cec33b71126e624cd914125d8d2a43 (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 f7b1fb1fd4f8e3f653a09d02ea1e4c489f04f8af Author: Jens Vollinga <jensv(a)nikhef.nl> Date: Tue Jul 6 11:23:21 2010 +0200 Texinfo interprets @strong{Note...} as a cross reference and gives a warning about it. Changed the text to avoid this. (cherry picked from commit 7769ce49235ed6510785baa0a29801e3a59b563e) ----------------------------------------------------------------------- Summary of changes: doc/tutorial/ginac.texi | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) hooks/post-receive -- GiNaC -- a C++ library for symbolic computations

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[PATCH] parser: handle abbreviations as advertized in the manual.
by Alexei Sheplyakov 05 Jul '10

05 Jul '10

The following example from the tutorial GiNaC::symbol x, y; GiNaC::symtab table; table["x"] = x+log(y)+1; GiNaC::parser reader(table); GiNaC::ex e = reader("5*x^3 - x^2"); fails with the following exception: terminate called after throwing an instance of 'std::invalid_argument' what(): find_or_insert_symbol: name "x" does not correspond to a symbol Remove silly checks from find_or_insert_symbol, and fix its return value (should be ex, not symbol). Note: theoretically this change breaks the binary compatibility, since the return value of the function has been changed. However, the function in question is internal, and should be used only by GiNaC itself. Hence the patch is OK even for the stable (1.5) branch. Thanks to Felipe Bordeu for reporting this bug. --- ginac/parser/parse_context.cpp | 13 +++---------- ginac/parser/parse_context.h | 4 ++-- 2 files changed, 5 insertions(+), 12 deletions(-) diff --git a/ginac/parser/parse_context.cpp b/ginac/parser/parse_context.cpp index 7a7867a..2230d61 100644 --- a/ginac/parser/parse_context.cpp +++ b/ginac/parser/parse_context.cpp @@ -27,19 +27,12 @@ namespace GiNaC { -symbol +ex find_or_insert_symbol(const std::string& name, symtab& syms, const bool strict) { symtab::const_iterator p = syms.find(name); - if (p != syms.end()) { - if (is_a<symbol>(p->second)) - return ex_to<symbol>(p->second); - else - throw std::invalid_argument( - std::string("find_or_insert_symbol: name \"") - + name + "\" does not correspond to a symbol"); - } - + if (p != syms.end()) + return p->second; if (strict) throw std::invalid_argument( diff --git a/ginac/parser/parse_context.h b/ginac/parser/parse_context.h index 6e0dff9..3516320 100644 --- a/ginac/parser/parse_context.h +++ b/ginac/parser/parse_context.h @@ -41,12 +41,12 @@ namespace GiNaC { typedef std::map<std::string, ex> symtab; /** - * Find the symbol with the @a name in the symbol table @a syms. + * Find the symbol (or abbreviation) with the @a name in the symbol table @a syms. * * If symbol is missing and @a strict = false, insert it, otherwise * throw an exception. */ -extern symbol +extern ex find_or_insert_symbol(const std::string& name, symtab& syms, const bool strict); -- 1.7.1

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[SCM] GiNaC -- a C++ library for symbolic computations branch, ginac_1-5, updated. release_1-4-0-240-gc84dc83
by git＠ginac.de 05 Jul '10

05 Jul '10

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, ginac_1-5 has been updated via c84dc83799cec33b71126e624cd914125d8d2a43 (commit) from 5fb83676210401cc08fae91831514bac44502209 (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 c84dc83799cec33b71126e624cd914125d8d2a43 Author: Alexei Sheplyakov <alexei.sheplyakov(a)gmail.com> Date: Mon Jul 5 09:15:20 2010 +0200 Parser: handle abbreviations as advertized in the manual. The following example from the tutorial GiNaC::symbol x, y; GiNaC::symtab table; table["x"] = x+log(y)+1; GiNaC::parser reader(table); GiNaC::ex e = reader("5*x3 - x2"); fails with the following exception: terminate called after throwing an instance of 'std::invalid_argument' what(): find_or_insert_symbol: name "x" does not correspond to a symbol Remove silly checks from find_or_insert_symbol, and fix its return value (should be ex, not symbol). ----------------------------------------------------------------------- Summary of changes: ginac/parser/parse_context.cpp | 13 +++---------- ginac/parser/parse_context.h | 4 ++-- 2 files changed, 5 insertions(+), 12 deletions(-) hooks/post-receive -- GiNaC -- a C++ library for symbolic computations

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[SCM] GiNaC -- a C++ library for symbolic computations branch, master, updated. release_1-4-0-221-gdf823d5
by git＠ginac.de 05 Jul '10

05 Jul '10

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 df823d53c56c762072f534c9f24479090162e33a (commit) from ff8b400eb500618644231ed9e6f199c3b0b25135 (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 df823d53c56c762072f534c9f24479090162e33a Author: Alexei Sheplyakov <alexei.sheplyakov(a)gmail.com> Date: Mon Jul 5 09:15:20 2010 +0200 Parser: handle abbreviations as advertized in the manual. The following example from the tutorial GiNaC::symbol x, y; GiNaC::symtab table; table["x"] = x+log(y)+1; GiNaC::parser reader(table); GiNaC::ex e = reader("5*x3 - x2"); fails with the following exception: terminate called after throwing an instance of 'std::invalid_argument' what(): find_or_insert_symbol: name "x" does not correspond to a symbol Remove silly checks from find_or_insert_symbol, and fix its return value (should be ex, not symbol). ----------------------------------------------------------------------- Summary of changes: ginac/parser/parse_context.cpp | 13 +++---------- ginac/parser/parse_context.h | 4 ++-- 2 files changed, 5 insertions(+), 12 deletions(-) hooks/post-receive -- GiNaC -- a C++ library for symbolic computations

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[SCM] GiNaC -- a C++ library for symbolic computations branch, ginac_1-5, updated. release_1-4-0-239-g5fb8367
by git＠ginac.de 22 May '10

22 May '10

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, ginac_1-5 has been updated via 5fb83676210401cc08fae91831514bac44502209 (commit) via 9c2ce1cc26735e268aae8142d9e5dbc5a9ba8ca3 (commit) from edf1ae46a926d0a718063c149b78c1b9a7ec2043 (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 5fb83676210401cc08fae91831514bac44502209 Author: Richard Kreckel <kreckel(a)ginac.de> Date: Sat May 22 22:34:42 2010 +0200 Be more careful with conjugate(f(x)) -> f(conjugate(x)). That identity is correct for holomorphic functions, but we have to be careful with some functions not being holomorphic everywhere. On branch cuts, it is wrong. For a discussion, see: <http://www.ginac.de/pipermail/ginac-list/2010-April/001601.html>. This patch changes the default behavior of user-defined functions. From now on, a user-defined conjugate_func must be registered, in order to evaluate conjugate(f(x)) -> f(conjugate(x)). This patch also adds such functions for most initially known functions. commit 9c2ce1cc26735e268aae8142d9e5dbc5a9ba8ca3 Author: Richard Kreckel <kreckel(a)ginac.de> Date: Wed May 19 00:18:35 2010 +0200 Fix dangerous iterator use. This was detected by cppcheck and reported by Martin Ettl <ettl.martin(a)gmx.de>. ----------------------------------------------------------------------- Summary of changes: doc/tutorial/ginac.texi | 13 +++-- ginac/excompiler.cpp | 2 +- ginac/function.pl | 2 +- ginac/inifcns.cpp | 19 ++++++- ginac/inifcns_gamma.cpp | 26 +++++++++- ginac/inifcns_trans.cpp | 131 +++++++++++++++++++++++++++++++++++++++++++++- ginac/power.cpp | 21 ++++++-- 7 files changed, 195 insertions(+), 19 deletions(-) hooks/post-receive -- GiNaC -- a C++ library for symbolic computations

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[SCM] GiNaC -- a C++ library for symbolic computations branch, master, updated. release_1-4-0-220-gff8b400
by git＠ginac.de 22 May '10

22 May '10

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 ff8b400eb500618644231ed9e6f199c3b0b25135 (commit) via 1a5127603d93125b75ee51c94200faf0b586ef32 (commit) from e75c7a32a0ea156635aeec535b9cdf7d4bf3f9b9 (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 ff8b400eb500618644231ed9e6f199c3b0b25135 Author: Richard Kreckel <kreckel(a)ginac.de> Date: Sat May 22 22:34:42 2010 +0200 Be more careful with conjugate(f(x)) -> f(conjugate(x)). That identity is correct for holomorphic functions, but we have to be careful with some functions not being holomorphic everywhere. On branch cuts, it is wrong. For a discussion, see: <http://www.ginac.de/pipermail/ginac-list/2010-April/001601.html>. This patch changes the default behavior of user-defined functions. From now on, a user-defined conjugate_func must be registered, in order to evaluate conjugate(f(x)) -> f(conjugate(x)). This patch also adds such functions for most initially known functions. commit 1a5127603d93125b75ee51c94200faf0b586ef32 Author: Richard Kreckel <kreckel(a)ginac.de> Date: Wed May 19 00:18:35 2010 +0200 Fix dangerous iterator use. This was detected by cppcheck and reported by Martin Ettl <ettl.martin(a)gmx.de>. ----------------------------------------------------------------------- Summary of changes: doc/tutorial/ginac.texi | 13 +++-- ginac/excompiler.cpp | 2 +- ginac/function.pl | 2 +- ginac/inifcns.cpp | 19 ++++++- ginac/inifcns_gamma.cpp | 26 +++++++++- ginac/inifcns_trans.cpp | 131 +++++++++++++++++++++++++++++++++++++++++++++- ginac/power.cpp | 21 ++++++-- 7 files changed, 195 insertions(+), 19 deletions(-) hooks/post-receive -- GiNaC -- a C++ library for symbolic computations

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[SCM] GiNaC -- a C++ library for symbolic computations branch, master, updated. release_1-4-0-218-ge75c7a3
by git＠ginac.de 18 May '10

18 May '10

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 e75c7a32a0ea156635aeec535b9cdf7d4bf3f9b9 (commit) via b2ea74ecbae56d737aacf2cbb418d7c9998718a4 (commit) via 5432feb4dae4c48f3b652d661aa323f07d20c00b (commit) via 8fcaff0d29e20d570c2936a27ce110326b76390e (commit) via 0c1db90c39613c27a088b760d68e8d59d4a12ee3 (commit) from b604136850dac1fa8016623349061f2a3b0085be (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 e75c7a32a0ea156635aeec535b9cdf7d4bf3f9b9 Author: Alexei Sheplyakov <alexei.sheplyakov(a)gmail.com> Date: Tue May 18 00:23:03 2010 +0200 pgcd(), chinrem_gcd(): use appropriate definition of the degree. Effect: fixes (rare) GCD miscalculation. pgcd() treats polynomials Z_p[x_0, ..., x_n] as R[x_0, ..., x_{n - 1}], where R = Z_p[x_n]. Therefore one should use correct definition of the degree (i.e. compute it w.r.t. x_0, ..., x_{n-1}, but NOT w.r.t. x_n!). One should use appropriate definition of degree (that is, w.r.t. x_0, ..., x_n) in chinrem_gcd() too. Thanks to Aless Lasaruk for a bug report. commit b2ea74ecbae56d737aacf2cbb418d7c9998718a4 Author: Alexei Sheplyakov <alexei.sheplyakov(a)gmail.com> Date: Tue May 18 00:21:53 2010 +0200 Added `degree_vector' utility function. It's a generalization of degree(expr, var) for multivariate polynomials. commit 5432feb4dae4c48f3b652d661aa323f07d20c00b Author: Alexei Sheplyakov <alexei.sheplyakov(a)gmail.com> Date: Tue May 18 00:20:08 2010 +0200 primpart_content: correctly handle monomials. Impact: fixes (rare) incorrect gcd calculation and (potential) segfault. Thanks to Aless Lasaruk for a bug report. commit 8fcaff0d29e20d570c2936a27ce110326b76390e Author: Alexei Sheplyakov <alexei.sheplyakov(a)gmail.com> Date: Tue May 18 00:17:26 2010 +0200 pgcd(): avoid infinite loop if the first GCD candidate coincides with GCD 136 if (H_lcoeff.is_equal(lc_gcd)) { 137 if ((Hprev-H).expand().smod(pn).is_zero()) // (*) 138 continue; The check (*) can result in infinite loop if the (very) first GCD candidate gives the correct GCD: any subsequent iterations give the same result, so Hprev and H will be equal (hence the infinite loop). That check is not very useful (AFAIR I was trying to avoid extra division checks), so let's remove it. commit 0c1db90c39613c27a088b760d68e8d59d4a12ee3 Author: Richard Kreckel <kreckel(a)ginac.de> Date: Mon May 17 08:37:08 2010 +0200 Fix URL of CODA. ----------------------------------------------------------------------- Summary of changes: check/Makefile.am | 4 +++ check/pgcd_infinite_loop.cpp | 41 +++++++++++++++++++++++++++++++++ doc/tutorial/ginac.texi | 2 +- ginac/polynomial/collect_vargs.cpp | 22 ++++++++++++++++- ginac/polynomial/collect_vargs.h | 31 +++++++++++++++++++++++++ ginac/polynomial/mgcd.cpp | 12 ++++++--- ginac/polynomial/pgcd.cpp | 12 +++++----- ginac/polynomial/primpart_content.cpp | 2 +- 8 files changed, 112 insertions(+), 14 deletions(-) create mode 100644 check/pgcd_infinite_loop.cpp hooks/post-receive -- GiNaC -- a C++ library for symbolic computations

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