ref: 6971ee1bf57435a8cf1d7b6936599bec126516cd dir: /libc/lnrand.c/
#include <u.h> #include <libc.h> #define MASK 0x7fffffffL long lnrand(long n) { long slop, v; if(n < 0) return n; slop = MASK % n; do v = lrand(); while(v <= slop); return v % n; }