random - create pseudo-random numbers

Syntax	#include <stdlib.h> long random(void);
Description	See initstate() . random() creates pseudo-random numbers in the range 0 through 2 31-1. random() is not thread-safe. Use the reentrant function rand_r() when needed.
Return val.	Pseudo-random number (see initstate() ).
Example	/* Initialize an array and pass it to initstate. */ static long state1[32] = { 3, 0x9a319039, 0x32d9c024, 0x9b663182, 0x5da1f342, 0x7449e56b, 0xbeb1dbb0, 0xab5c5918, 0x946554fd, 0x8c2e680f, 0xeb3d799f, 0xb11ee0b7, 0x2d436b86, 0xda672e2a, 0x1588ca88, 0xe369735d, 0x904f35f7, 0xd7158fd6, 0x6fa6f051, 0x616e6b96, 0xac94efdc, 0xde3b81e0, 0xdf0a6fb5, 0xf103bc02, 0x48f340fb, 0x36413f93, 0xc622c298, 0xf5a42ab8, 0x8a88d77b, 0xf5ad9d0e, 0x8999220b, 0x27fb47b9 }; int main() { unsigned seed; int n; seed = 1; n = 128; initstate(seed, state1, n); setstate(state1); printf("%d\0", random()); }
See also	drand48(), rand(), rand_r(), srand(), stdlib.h.