diff options
| -rw-r--r-- | library/core/src/ops/arith.rs | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/library/core/src/ops/arith.rs b/library/core/src/ops/arith.rs index da0f038e44e..a0577b287ce 100644 --- a/library/core/src/ops/arith.rs +++ b/library/core/src/ops/arith.rs @@ -556,9 +556,13 @@ pub trait Rem<Rhs = Self> { } macro_rules! rem_impl_integer { - ($($t:ty)*) => ($( + ($(($($t:ty)*) => $panic:expr),*) => ($($( /// This operation satisfies `n % d == n - (n / d) * d`. The /// result has the same sign as the left operand. + /// + /// # Panics + /// + #[doc = $panic] #[stable(feature = "rust1", since = "1.0.0")] impl Rem for $t { type Output = $t; @@ -568,10 +572,13 @@ macro_rules! rem_impl_integer { } forward_ref_binop! { impl Rem, rem for $t, $t } - )*) + )*)*) } -rem_impl_integer! { usize u8 u16 u32 u64 u128 isize i8 i16 i32 i64 i128 } +rem_impl_integer! { + (usize u8 u16 u32 u64 u128) => "This operation will panic if `other == 0`.", + (isize i8 i16 i32 i64 i128) => "This operation will panic if `other == 0` or if `self / other` results in overflow." +} macro_rules! rem_impl_float { ($($t:ty)*) => ($( |