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use core::ops::Rem;
pub trait CheckedDivRem<Divisor = Self> {
type Output;
/// Returns quotient and remainder of checked division.
/// ```
/// use traiter::numbers::CheckedDivRem;
/// // signed integers
/// assert_eq!(
/// CheckedDivRem::checked_div_rem(-3i8, 2i8), Some((-1i8, -1i8))
/// );
/// assert_eq!(
/// CheckedDivRem::checked_div_rem(-3i8, 1i8), Some((-3i8, 0i8))
/// );
/// assert_eq!(CheckedDivRem::checked_div_rem(-3i8, 0i8), None);
/// assert_eq!(CheckedDivRem::checked_div_rem(i8::MIN, -1i8), None);
/// // unsigned integers
/// assert_eq!(CheckedDivRem::checked_div_rem(3u8, 2u8), Some((1u8, 1u8)));
/// assert_eq!(CheckedDivRem::checked_div_rem(3u8, 1u8), Some((3u8, 0u8)));
/// assert_eq!(CheckedDivRem::checked_div_rem(3u8, 0u8), None);
/// ```
fn checked_div_rem(self, divisor: Divisor) -> Self::Output;
}
macro_rules! integer_checked_div_rem_impl {
($($integer:ty)*) => ($(
impl CheckedDivRem for $integer {
type Output = Option<(Self, Self)>;
#[inline(always)]
fn checked_div_rem(self, divisor: Self) -> Self::Output {
<$integer>::checked_div(self, divisor)
.map(|quotient| (quotient, <$integer>::rem(self, divisor)))
}
}
)*)
}
integer_checked_div_rem_impl!(
i8 i16 i32 i64 i128 isize u8 u16 u32 u64 u128 usize
);