How do I get a specific range of numbers from rand ()?
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 …
How does rand() work in C? - Stack Overflow
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 …
rand() function in c++ - Stack Overflow
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 (%) …
generate a random number between 1 and 10 in c - Stack Overflow
Jul 25, 2013 · randomnumber = rand() % 10; printf("%d\n", randomnumber); return 0; } This is a simple program where randomnumber is an uninitialized int variable that is meant to be printed …
c - How does srand relate to rand function? - Stack Overflow
18 srand() sets the seed which is used by rand to generate "random" numbers (in quotes because they're generally pseudo-random). If you don't call srand before your first call to rand, it's as if …
Generate a value between 0.0 and 1.0 using rand () - Stack Overflow
The OP's reasoning for trying it was wrong, but had this been necessary, the UB could've been avoided by adding 1.0 instead of 1, which would coerce RAND_MAX to double type and so …
c++ - How does modulus and rand () work? - Stack Overflow
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 …
Why is the use of rand() considered bad? - Stack Overflow
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?
c - What does `rand () % 2` mean? - Stack Overflow
Jun 12, 2023 · The rand() % 2 is a way of generating a pseudo-random number that's either 0 or 1. The rand() function generates a pseudo-random integer. When you take the modulus of that …
How do I generate a random number for each row in a T-SQL select?
I need a different random number for each row in my table. The following seemingly obvious code uses the same random value for each row. SELECT table_name, RAND() magic_number …