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%global pkgname factint
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Name: gap-pkg-%{pkgname}
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Version: 1.6.2
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Release: 1%{?dist}
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Summary: Advanced methods for factoring integers
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%global pkgdir FactInt-%{version}
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License: GPLv2+
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URL: https://gap-packages.github.io/FactInt/
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Source0: https://github.com/gap-packages/FactInt/releases/download/v%{version}/%{pkgdir}.tar.gz
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BuildArch: noarch
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BuildRequires: gap-devel
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BuildRequires: gap-pkg-autodoc
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Requires: gap-core
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%description
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FactInt provides implementations of the following methods for factoring
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integers:
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- Pollard's p-1
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- Williams' p+1
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- Elliptic Curves Method (ECM)
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- Continued Fraction Algorithm (CFRAC)
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- Multiple Polynomial Quadratic Sieve (MPQS)
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FactInt also makes use of Richard P. Brent's tables of known factors of
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integers of the form bk+/-1 for "small" b.
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The ECM method is suited best for finding factors which are neither too
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small (i.e. have less than about 12 decimal digits) nor too close to the
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square root of the number to be factored. The MPQS method is designed
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for factoring products of two primes of comparable orders of magnitude.
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CFRAC is the historical predecessor of the MPQS method. Pollard's p-1
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and Williams' p+1 are useful for finding factors p such that all prime
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factors of p-1 (respectively p+1) are "small", e.g. smaller than 1000000.
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All factoring methods implemented in this package are probabilistic. In
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particular the time needed by the ECM method depends largely on luck.
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FactInt provides a general-purpose factorization routine which uses an
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appropriate combination of the methods mentioned above, the Pollard Rho
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routine which is implemented in the GAP Library and a variety of tricks
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for special cases to obtain a good average performance for "arbitrary"
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integers. At the user's option, FactInt provides detailed information
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about the progress of the factorization process.
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%prep
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%setup -q -n %{pkgdir}
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# Fix encodings
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for fil in CHANGES; do
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iconv -f iso8859-1 -t utf-8 $fil > $fil.utf8
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touch -r $fil $fil.utf8
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mv -f $fil.utf8 $fil
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done
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%build
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gap makedoc.g
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%install
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mkdir -p %{buildroot}%{_gap_dir}/pkg
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cp -a ../%{pkgdir} %{buildroot}%{_gap_dir}/pkg
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rm -fr %{buildroot}%{_gap_dir}/pkg/%{pkgdir}/scripts
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rm -f %{buildroot}%{_gap_dir}/pkg/%{pkgdir}/doc/*.{aux,bbl,blg,brf,idx,ilg,ind,log,out,pnr,tex,toc}
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%check
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gap -l "%{buildroot}%{_gap_dir};%{_gap_dir}" tst/testall.g 2>&1 | tee log
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! grep -Fq fail log
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rm -f log
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%files
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%doc CHANGES README.md
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%docdir %{_gap_dir}/pkg/%{pkgdir}/doc
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%{_gap_dir}/pkg/%{pkgdir}/
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%changelog
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* Sat Jun 9 2018 Jerry James <loganjerry@gmail.com> - 1.6.2-1
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- New upstream version
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- New URLs
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* Wed Feb 07 2018 Fedora Release Engineering <releng@fedoraproject.org> - 1.6.0-2
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- Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild
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* Sat Jan 6 2018 Jerry James <loganjerry@gmail.com> - 1.6.0-1
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- New upstream version
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- New URLs
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* Wed Jul 26 2017 Fedora Release Engineering <releng@fedoraproject.org> - 1.5.4-2
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- Rebuilt for https://fedoraproject.org/wiki/Fedora_27_Mass_Rebuild
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* Fri Mar 31 2017 Jerry James <loganjerry@gmail.com> - 1.5.4-1
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- New upstream version
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* Fri Feb 10 2017 Fedora Release Engineering <releng@fedoraproject.org> - 1.5.3-2
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- Rebuilt for https://fedoraproject.org/wiki/Fedora_26_Mass_Rebuild
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* Tue May 3 2016 Jerry James <loganjerry@gmail.com> - 1.5.3-1
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- Initial RPM
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