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[Bug libstdc++/52699] infinite loop generated with -O0
- From: "paolo at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Sat, 14 Apr 2012 22:33:27 +0000
- Subject: [Bug libstdc++/52699] infinite loop generated with -O0
- Auto-submitted: auto-generated
- References: <bug-52699-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52699
--- Comment #8 from paolo at gcc dot gnu.org <paolo at gcc dot gnu.org> 2012-04-14 22:33:27 UTC ---
Author: paolo
Date: Sat Apr 14 22:33:22 2012
New Revision: 186456
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=186456
Log:
2012-04-14 Paolo Carlini <paolo.carlini@oracle.com>
PR libstdc++/52699
* include/bits/random.tcc (independent_bits_engine<>::operator()())
Avoid various overflows; use common_type on result_type and
_RandomNumberEngine::result_type; avoid floating point computations;
other smaller tweaks.
* include/bits/random.tcc (uniform_int_distribution<>::operator())
Use common_type; assume _UniformRandomNumberGenerator::result_type
unsigned; tidy.
* include/bits/stl_algobase.h (__lg(unsigned), __lg(unsigned long),
__lg(unsigned long long)): Add.
Modified:
trunk/libstdc++-v3/ChangeLog
trunk/libstdc++-v3/include/bits/random.tcc
trunk/libstdc++-v3/include/bits/stl_algobase.h