operator==,!=(std::mersenne_twister_engine)

friend bool operator==( const mersenne_twister_engine& lhs,
                        const mersenne_twister_engine& rhs );

friend bool operator!=( const mersenne_twister_engine& lhs,
                        const mersenne_twister_engine& rhs );

Compares two pseudo-random number engines. Two engines are equal, if their internal states are equivalent, that is, if they would generate equivalent values for any number of calls of operator().

These functions are not visible to ordinary unqualified or qualified lookup, and can only be found by argument-dependent lookup when std::mersenne_twister_engine<UIntType,w,n,m,r,a,u,d,s,b,t,c,l,f> is an associated class of the arguments.

Parameters

Return value

Exceptions

Throws nothing.

Defect reports

The following behavior-changing defect reports were applied retroactively to previously published C++ standards.