SNUM_MAX_DECIMAL
return num >= SNUM_MIN_DECIMAL && num <= SNUM_MAX_DECIMAL;
case S64: return (s64)x >= SNUM_MIN_DECIMAL && (s64)x <= SNUM_MAX_DECIMAL;
case S32: return (s32)x >= SNUM_MIN_DECIMAL && (s32)x <= SNUM_MAX_DECIMAL;