namespace std { | |
template<typename> struct mersenne_twister_engine { | |
friend bool operator==(const mersenne_twister_engine &, | |
const mersenne_twister_engine &) { | |
return false; | |
} | |
}; | |
struct random_device { | |
mersenne_twister_engine<int> mt; // require complete type | |
}; | |
} | |