http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55215
Bug #: 55215
Summary: Constructor seeding is broken for Mersenne twister
Classification: Unclassified
Product: gcc
Version: 4.6.4
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
AssignedTo: [email protected]
ReportedBy: [email protected]
http://ideone.com/p8B7lF (the code is also provided in attachment).
I expected that both functions, f and g, would return the same value every
time. But, as we can see, initializing Mersenne using its constructor doesn't
yield consistent results.
I tested compiler from Visual Studio 2012, and it doesn't have this bug. Other
random number engines probably don't have this bug (I tested std::minstd_rand).
