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Auto merge of #29862 - ranma42:const_min_max, r=alexcrichton

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They can be useful for constructing constant items.
This commit is contained in:
bors 2015-11-16 20:53:59 +00:00
commit 73cfcc60e1
1 changed files with 5 additions and 5 deletions
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10
src/libcore/num/mod.rs
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@ -124,15 +124,15 @@ macro_rules! int_impl {
/// Returns the smallest value that can be represented by this integer type.
#[stable(feature = "rust1", since = "1.0.0")]
#[inline]
pub fn min_value() -> Self {
pub const fn min_value() -> Self {
(-1 as Self) << ($BITS - 1)
}
/// Returns the largest value that can be represented by this integer type.
#[stable(feature = "rust1", since = "1.0.0")]
#[inline]
pub fn max_value() -> Self {
let min = Self::min_value(); !min
pub const fn max_value() -> Self {
!Self::min_value()
}
/// Converts a string slice in a given base to an integer.
@ -891,12 +891,12 @@ macro_rules! uint_impl {
/// Returns the smallest value that can be represented by this integer type.
#[stable(feature = "rust1", since = "1.0.0")]
#[inline]
pub fn min_value() -> Self { 0 }
pub const fn min_value() -> Self { 0 }
/// Returns the largest value that can be represented by this integer type.
#[stable(feature = "rust1", since = "1.0.0")]
#[inline]
pub fn max_value() -> Self { !0 }
pub const fn max_value() -> Self { !0 }
/// Converts a string slice in a given base to an integer.
///