Post #25762 3 Oct 5, 2026, 02:25 UTC index based for vs for-eachhttps://godbolt.org/z/zh4Kf87M8https://redd.it/1wksz8y@r_cpp godbolt.org Compiler Explorer - C++ static std::vector<char> gen_random(size_t n) { static std::random_device rd; static std::mt19937 gen(rd()); static std::uniform_int_distribution<> dis(0, 255); std::vector<char> vec(n); for (size_t i = 0; i != n; i++) vec[i] = dis(gen);…