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[Bug libstdc++/48114] [C++0x] binomial_distribution incorrect for p > .5 and geometric_distribution wrongly implements the TR1 definition
- 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: Mon, 14 Mar 2011 17:58:08 +0000
- Subject: [Bug libstdc++/48114] [C++0x] binomial_distribution incorrect for p > .5 and geometric_distribution wrongly implements the TR1 definition
- Auto-submitted: auto-generated
- References: <bug-48114-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48114
--- Comment #10 from paolo at gcc dot gnu.org <paolo at gcc dot gnu.org> 2011-03-14 17:57:53 UTC ---
Author: paolo
Date: Mon Mar 14 17:57:48 2011
New Revision: 170946
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=170946
Log:
2011-03-14 Andrey Zholos <aaz@althenia.net>
PR libstdc++/48114
* include/bits/random.h (geometric_distribution): Correct formula
in comment, per C++0x.
(geometric_distribution<>::param_type::param_type(double)): Fix check.
(geometric_distribution<>::param_type::_M_initialize):
Store log(1 - p).
* include/bits/random.tcc (geometric_distribution<>::operator()):
Fix computation.
(binomial_distribution<>::operator()): Likewise.
Modified:
trunk/libstdc++-v3/ChangeLog
trunk/libstdc++-v3/include/bits/random.h
trunk/libstdc++-v3/include/bits/random.tcc