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add BITS associated constant to core::num::Wrapping #85177

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Merged
merged 1 commit into from
May 13, 2021
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add BITS associated constant to core::num::Wrapping #85177

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15 changes: 15 additions & 0 deletions library/core/src/num/wrapping.rs
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Expand Up @@ -433,6 +433,21 @@ macro_rules! wrapping_int_impl {
#[unstable(feature = "wrapping_int_impl", issue = "32463")]
pub const MAX: Self = Self(<$t>::MAX);

/// Returns the size of this integer type in bits.
///
/// # Examples
///
/// Basic usage:
///
/// ```
/// #![feature(wrapping_int_impl)]
/// use std::num::Wrapping;
///
#[doc = concat!("assert_eq!(<Wrapping<", stringify!($t), ">>::BITS, ", stringify!($t), "::BITS);")]
/// ```
#[unstable(feature = "wrapping_int_impl", issue = "32463")]
pub const BITS: u32 = <$t>::BITS;

/// Returns the number of ones in the binary representation of `self`.
///
/// # Examples
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