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use crate::num::arithmetic::traits::CheckedSub;
macro_rules! impl_checked_sub {
($t:ident) => {
impl CheckedSub<$t> for $t {
type Output = $t;
/// This is a wrapper over the `checked_sub` functions in the standard library, for
/// example [this one](u32::checked_sub).
#[inline]
fn checked_sub(self, other: $t) -> Option<$t> {
$t::checked_sub(self, other)
}
}
};
}
apply_to_primitive_ints!(impl_checked_sub);