What is srand function?

Answer 1

The srand() function sets the starting point for producing a series of pseudo-random integers. If srand() is not called, the rand() seed is set as if srand(1) were called at program start. Any other value for seed sets the generator to a different starting point.

https://www.sololearn.com/learn/CPlusPlus/1638/?ref=app

Answer 2

pseudo-random number generator, it seeds the pseudo-random number generator used by the rand() function

http://www.cplusplus.com/reference/cstdlib/srand/
https://www.tutorialspoint.com/cplusplus-program-to-use-rand-and-srand-functions

Answer 3

Srand() function is used for generat random numbers, these random number , choose by compiler, that is declared in <time.h> library file. Syntax: srand (time(NULL));