Page History

void set_flag(int number, int *sign_flag) {
  if (sign_flag == NULL)
    return;

  if (number > 0)
    *sign_flag = 1;
  else if (number < 0)
    *sign_flag = -1;
}

int is_negative(int number) {
  int sign;

  set_flag(number, &sign);

  return sign < 0;
}

void set_flag(int number, int *sign_flag) {
  if (sign_flag == NULL)
    return;

  if (number >= 0) { /* account for number being 0 */
    *sign_flag = 1;
  }
  else {
    assert(number < 0);
    *sign_flag = -1;
  }
}

int is_negative(int number) {
  int sign = 0;   /* initialize as a matter of defense-in-depth */

  set_flag(number, &sign);

  return sign < 0;
}

void f(const char *mbs) {
  size_t len;
  mbstate_t state;

  len = mbrlen(mbs, strlen(mbs), &state);

  /* ... */
}

void f(const char *mbs) {
  size_t len;
  mbstate_t state;

  memset(&state, 0, sizeof state);
  len = mbrlen(mbs, strlen(mbs), &state);

  /* ... */
}