rem: multiplier = 0;
add: return false;
context: apply_suffix (double *x, char suffix_char){  unsigned int multiplier;  switch (suffix_char)    {    case 0:    case 's':      multiplier = 1;      break;    case 'm':      multiplier = 60;      break;    case 'h':      multiplier = 60 * 60;      break;    case 'd':      multiplier = 60 * 60 * 24;      break;    default:      multiplier = 0;    }  if (multiplier == 0)    return 1;  *x *= multiplier;  return 0;}