pub trait WrappingMul<Other = Self> {
type Output;
/// Returns wrapping multiplication.
/// ```
/// use traiter::numbers::WrappingMul;
/// // signed integers
/// assert_eq!(WrappingMul::wrapping_mul(i8::MIN, -1i8), i8::MIN);
/// assert_eq!(WrappingMul::wrapping_mul(i8::MAX, -1i8), -i8::MAX);
/// assert_eq!(WrappingMul::wrapping_mul(i8::MAX, i8::MIN), i8::MIN);
/// // unsigned integers
/// assert_eq!(WrappingMul::wrapping_mul(u8::MAX, 2u8), 254u8);
/// assert_eq!(WrappingMul::wrapping_mul(u8::MAX, 3u8), 253u8);
/// assert_eq!(WrappingMul::wrapping_mul(u8::MAX, 4u8), 252u8);
/// ```
fn wrapping_mul(self, other: Other) -> Self::Output;
}
macro_rules! integer_wrapping_mul_impl {
($($integer:ty)*) => ($(
impl WrappingMul for $integer {
type Output = Self;
#[inline(always)]
fn wrapping_mul(self, other: Self) -> Self::Output {
<$integer>::wrapping_mul(self, other)
}
}
)*)
}
integer_wrapping_mul_impl!(
i8 i16 i32 i64 i128 isize u8 u16 u32 u64 u128 usize
);