Do I need '(unsigned int)' before 'time(null)' in the srand function in c? 2 · rand() not giving me a random number (even when srand() is used). ... <看更多>

To make sure that we get different sequence of random numbers for separate runs, we use srand function and pass the system time in seconds using ... ... <看更多>

+ x.report("Kernel#srand(0x12345678901234567890)") do. + total.times do ... +This is based on random.c from Ruby 1.8.7, which carries the following notice:. ... <看更多>