c06617a79b
My previous attempt to fix this only worked when m is a power of two. There is still a bug when a=00 and !has_single_bit(m). Instead of trying to make _Mod work for a==0 this change ensures that we never instantiate it with a==0. For C++17 we can use if-constexpr, but otherwise we need to use a different multipler. It doesn't matter what we use, as it won't actually be called, only instantiated. libstdc++-v3/ChangeLog: * include/bits/random.h (__detail::_Mod): Revert last change. (__detail::__mod): Do not use _Mod for a==0 case. * testsuite/26_numerics/random/linear_congruential_engine/operators/call.cc: Check other cases with a==0. Also check runtime results. * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error line. |
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| include | ||
| libsupc++ | ||
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| python | ||
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| src | ||
| testsuite | ||
| acinclude.m4 | ||
| aclocal.m4 | ||
| ChangeLog | ||
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| config.h.in | ||
| configure | ||
| configure.ac | ||
| configure.host | ||
| crossconfig.m4 | ||
| fragment.am | ||
| linkage.m4 | ||
| Makefile.am | ||
| Makefile.in | ||
| README | ||
file: libstdc++-v3/README New users may wish to point their web browsers to the file index.html in the 'doc/html' subdirectory. It contains brief building instructions and notes on how to configure the library in interesting ways.