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#include <stdlib.h> int rand (void);
The rand function generates a pseudo-random number between 0 and 32767.
The rand function returns a pseudo-random number.
srand
#include <stdlib.h> #include <stdio.h> /* for printf */ void tst_rand (void) { int i; int r; for (i = 0; i < 10; i++) { printf ("I = %d, RAND = %d\n", i, rand ()); } }