Sep 27, 2011 · The c++ rand () function gives you a number from 0 to RAND_MAX (a constant defined in <cstdlib>), which is at least 32767. (from the c++ documentation) The modulus (%) …

Jul 30, 2009 · M + rand() / (RAND_MAX / (N - M + 1) + 1) (Note, by the way, that RAND_MAX is a constant telling you what the fixed range of the C library rand function is. You cannot set …

Aug 4, 2015 · Many implementations of rand() cycle through a short list of numbers, and the low bits have shorter cycles. The way that some programs call rand() is awful, and calculating a …

Oct 28, 2015 · The rand() function returns a pseudo-random integer in the range 0 to RAND_MAX inclusive (i.e., the mathematical range [0, RAND_MAX]). The srand() function sets its …

Oct 24, 2013 · A second lesson is that this shows another way in which <random> is easier to use than rand() and manually computing your own distributions. The built-in …

printf("%d\n", rand() % 50); Where is the connection between rand and srand? What I mean or expect is I assume rand () will get some parameter from srand () so it knows to generate …

9 Functions rand() and random() are either defined by POSIX since at least POSIX.1-2001 (and randomize() is not standardized). On older rand() implementations, and on current …

Aug 21, 2010 · The actual implementation of the random number generator is left unspecified, so the actual behavior is specific to the implementation. The important thing to remember is that …

Oct 18, 2018 · Usage of rand() is usually frowned upon despite using a seed via srand(). Why would that be the case? What better alternatives are available?

Jan 22, 2011 · rand and srand are usually implemented as a simple LCG, you can easily write your own (it's few lines of code) without looking for the sources of rand and srand. Notice that, …