#include <stdint.h> #include <stdio.h> #include <stdlib.h> #include <time.h> int main (void) { time_t t = time (NULL); int i, ret = 0; double d; long int l; struct drand48_data data; unsigned short int buf[3]; srand48 ((long int) t); for (i = 0; i < 50; i++) if ((d = drand48 ()) < 0.0 || d >= 1.0) { printf ("drand48 %d %g\n", i, d); ret = 1; } srand48_r ((long int) t, &data); for (i = 0; i < 50; i++) if (drand48_r (&data, &d) != 0 || d < 0.0 || d >= 1.0) { printf ("drand48_r %d %g\n", i, d); ret = 1; } buf[2] = (t & 0xffff0000) >> 16; buf[1] = (t & 0xffff); buf[0] = 0x330e; for (i = 0; i < 50; i++) if ((d = erand48 (buf)) < 0.0 || d >= 1.0) { printf ("erand48 %d %g\n", i, d); ret = 1; } buf[2] = (t & 0xffff0000) >> 16; buf[1] = (t & 0xffff); buf[0] = 0x330e; for (i = 0; i < 50; i++) if (erand48_r (buf, &data, &d) != 0 || d < 0.0 || d >= 1.0) { printf ("erand48_r %d %g\n", i, d); ret = 1; } srand48 ((long int) t); for (i = 0; i < 50; i++) if ((l = lrand48 ()) < 0 || l > INT32_MAX) { printf ("lrand48 %d %ld\n", i, l); ret = 1; } srand48_r ((long int) t, &data); for (i = 0; i < 50; i++) if (lrand48_r (&data, &l) != 0 || l < 0 || l > INT32_MAX) { printf ("lrand48_r %d %ld\n", i, l); ret = 1; } buf[2] = (t & 0xffff0000) >> 16; buf[1] = (t & 0xffff); buf[0] = 0x330e; for (i = 0; i < 50; i++) if ((l = nrand48 (buf)) < 0 || l > INT32_MAX) { printf ("nrand48 %d %ld\n", i, l); ret = 1; } buf[2] = (t & 0xffff0000) >> 16; buf[1] = (t & 0xffff); buf[0] = 0x330e; for (i = 0; i < 50; i++) if (nrand48_r (buf, &data, &l) != 0 || l < 0 || l > INT32_MAX) { printf ("nrand48_r %d %ld\n", i, l); ret = 1; } srand48 ((long int) t); for (i = 0; i < 50; i++) if ((l = mrand48 ()) < INT32_MIN || l > INT32_MAX) { printf ("mrand48 %d %ld\n", i, l); ret = 1; } srand48_r ((long int) t, &data); for (i = 0; i < 50; i++) if (mrand48_r (&data, &l) != 0 || l < INT32_MIN || l > INT32_MAX) { printf ("mrand48_r %d %ld\n", i, l); ret = 1; } buf[2] = (t & 0xffff0000) >> 16; buf[1] = (t & 0xffff); buf[0] = 0x330e; for (i = 0; i < 50; i++) if ((l = jrand48 (buf)) < INT32_MIN || l > INT32_MAX) { printf ("jrand48 %d %ld\n", i, l); ret = 1; } buf[2] = (t & 0xffff0000) >> 16; buf[1] = (t & 0xffff); buf[0] = 0x330e; for (i = 0; i < 50; i++) if (jrand48_r (buf, &data, &l) != 0 || l < INT32_MIN || l > INT32_MAX) { printf ("jrand48_r %d %ld\n", i, l); ret = 1; } return ret; }