4 ms·
Why not just run your tests with a fixed seed? e.g. std::mt19937 gen(42); std::uniform_int_distribution<> dist(1, 100); int random_number = dist(ge
by senkora 1y ago
Why not just run your tests with a fixed seed? e.g.
std::mt19937 gen(42);
std::uniform_int_distribution<> dist(1, 100);
int random_number = dist(gen);
- jhasse 1y agouniform_int_distribution differs between compilers/platforms! Don't use it if you don't want true randomness.
- senkora 1y agoThank you, that makes sense. I can see that being an issue for testing. I wouldn't describe "pseudo-random sequences that differ between compilers/platforms/versions but are deterministic for a given toolchain" as "true randomness" but I understand the point. I have confirmed that uniform_int_distribution gives different results on x86-64 clang (trunk) with libc++ [1] vs x86-64 clang (trunk) with libstdc++ [2]. [1]: https://godbolt.org/z/dd5YMs7zo https://godbolt.org/z/dd5YMs7zo [2]: https://godbolt.org/z/8svGn7Exc https://godbolt.org/z/8svGn7Exc