plan9port/src/lib9/nrand.c
2003-09-30 17:47:41 +00:00

17 lines
176 B
C

#include <lib9.h>
#define MASK 0x7fffffffL
int
nrand(int n)
{
long slop, v;
if(n < 0)
return n;
slop = MASK % n;
do
v = lrand();
while(v <= slop);
return v % n;
}