Function rk_random_bool

numpy/random/src/mt19937/randomkit.c:410–435

* Fills an array with cnt random npy_bool between off and off + rng * inclusive. */

 * inclusive.
 */
void rk_random_bool(npy_bool off, npy_bool rng, npy_intp cnt, npy_bool *out,
                    rk_state *state) {
  npy_intp i;
  npy_uint32 buf;
  int bcnt = 0;

  if (rng == 0) {
    for (i = 0; i < cnt; i++) {
      out[i] = off;
    }
    return;
  }

  /* If we reach here rng and mask are one and off is zero */
  assert(rng == 1 && off == 0);
  for (i = 0; i < cnt; i++) {
    if (!bcnt) {
      buf = rk_uint32(state);
      bcnt = 31;
    } else {
      buf >>= 1;
      bcnt--;
    }
    out[i] = (buf & 0x00000001) != 0;
  }
}

long rk_long(rk_state *state) { return rk_ulong(state) >> 1; }