src/vendor/num-traits/src/ops/saturating.rs

   1 /// Saturating math operations
   2 pub trait Saturating {
   3     /// Saturating addition operator.
   4     /// Returns a+b, saturating at the numeric bounds instead of overflowing.
   5     fn saturating_add(self, v: Self) -> Self;
   6
   7     /// Saturating subtraction operator.
   8     /// Returns a-b, saturating at the numeric bounds instead of overflowing.
   9     fn saturating_sub(self, v: Self) -> Self;
  10 }
  11
  12 macro_rules! saturating_impl {
  13     ($trait_name:ident for $($t:ty)*) => {$(
  14         impl $trait_name for $t {
  15             #[inline]
  16             fn saturating_add(self, v: Self) -> Self {
  17                 Self::saturating_add(self, v)
  18             }
  19
  20             #[inline]
  21             fn saturating_sub(self, v: Self) -> Self {
  22                 Self::saturating_sub(self, v)
  23             }
  24         }
  25     )*}
  26 }
  27
  28 saturating_impl!(Saturating for isize usize i8 u8 i16 u16 i32 u32 i64 u64);
  29 #[cfg(has_i128)]
  30 saturating_impl!(Saturating for i128 u128);