re PR libstdc++/57674 (wrong distribution for std::binomial_distribution::operator...

re PR libstdc++/57674 (wrong distribution for  std::binomial_distribution::operator()(g,param))

2013-06-22  Paolo Carlini  <paolo.carlini@oracle.com>

	PR libstdc++/57674
	* include/bits/random.h (binomial_distribution<>::_M_waiting):
	Add double parameter.
	* include/bits/random.tcc (binomial_distribution<>::operator()
	(_UniformRandomNumberGenerator&, const param_type&)): Pass
	__param._M_q to _M_waiting.
	(_M_waiting): Adjust.
	* testsuite/26_numerics/random/binomial_distribution/
	operators/values.cc: Add tests.

From-SVN: r200341