Should I use std::default_random_engine or should I use std::mt19937?

Question

when I want to generate random numbers using std::random, which engine should I prefer? the std::default_random_engine or the std::mt19937? what ar

Answer 1

They address different needs. The first is an implementation-defined alias for a certain generator whilst the latter specifically uses the Mersenne-Twister algorithm with a 32 bit seed.

If you don't have particular requirements, std::default_random_engine should be ok.