https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83237
Michele Pezzutti <mpezz at tiscali dot it> changed:
What |Removed |Added
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CC| |mpezz at tiscali dot it
--- Comment #1 from Michele Pezzutti <mpezz at tiscali dot it> ---
I think the value of the comparison function should be set to 1/78 for __x = 1:
* include/bits/random.tcc (poisson_distribution<_IntType>::operator()):
With gcc (Ubuntu 4.8.4-2ubuntu1~14.04.3) 4.8.4
1E8 samples
N libstdc++ patch expected
155 3154430 3155726 3154821.01
156 3178062 3179345 3178482.17
157 3179989 3181280 3181923.84
158 3204922(*) 3165234 3165208.67
159 3127941 3129209 3128778.91
(*) problematic value