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PR libstdc++/56202 (again)

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2013-02-04  Manuel López-Ibáñez  <manu@gcc.gnu.org>
	    Paolo Carlini  <paolo.carlini@oracle.com>

	PR libstdc++/56202 (again)
	* include/bits/random.tcc (binomial_distribution<>::
	_M_waiting(_UniformRandomNumberGenerator&, _IntType)): Fix thinko
	in previous commit.

	* include/bits/random.h: Fix comment typo.

Co-Authored-By: Paolo Carlini <paolo.carlini@oracle.com>

From-SVN: r195732
This commit is contained in:
Manuel López-Ibáñez 2013-02-04 19:28:40 +00:00 committed by Paolo Carlini
parent 5d5bf77569
commit 9ea146e6da
3 changed files with 13 additions and 7 deletions
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10
libstdc++-v3/ChangeLog
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@ -1,3 +1,13 @@
2013-02-04 Manuel López-Ibáñez <manu@gcc.gnu.org>
Paolo Carlini <paolo.carlini@oracle.com>
PR libstdc++/56202 (again)
* include/bits/random.tcc (binomial_distribution<>::
_M_waiting(_UniformRandomNumberGenerator&, _IntType)): Fix thinko
in previous commit.
* include/bits/random.h: Fix comment typo.
2013-02-04 Manuel López-Ibáñez <manu@gcc.gnu.org>
Paolo Carlini <paolo.carlini@oracle.com>

2
libstdc++-v3/include/bits/random.h
View File

@ -3770,7 +3770,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
* @brief A discrete binomial random number distribution.
*
* The formula for the binomial probability density function is
* @f$p(i|t,p) = \binom{n}{i} p^i (1 - p)^{t - i}@f$ where @f$t@f$
* @f$p(i|t,p) = \binom{t}{i} p^i (1 - p)^{t - i}@f$ where @f$t@f$
* and @f$p@f$ are the parameters of the distribution.
*/
template<typename _IntType = int>

8
libstdc++-v3/include/bits/random.tcc
View File

@ -1657,13 +1657,9 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
do
{
const double __e = -std::log(1.0 - __aurng());
if (__t == __x)
{
if (__e)
return __x;
continue;
}
return __x;
const double __e = -std::log(1.0 - __aurng());
__sum += __e / (__t - __x);
__x += 1;
}