http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60441
Bug ID: 60441
Summary: Incorrect textual representation for
std::mersenne_twister_engine
Product: gcc
Version: 4.8.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: koherde at hotmail dot com
The textual representation of std::mersenne_twister_engine should consist of n
values (n being the state size). libstdc++ uses a textual representation that
consists of n+1 values.
----------------------------------
#include <iostream>
#include <random>
#include <sstream>
int main()
{
std::mt19937 r;
std::stringstream ss;
ss << r;
int valueCount = 0;
std::uint32_t val;
while (ss >> val)
{
++valueCount;
}
std::cout << r.state_size << std::endl;
std::cout << valueCount << std::endl;
}
----------------------------------
Output:
624
625
Expected output:
624
624
