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Make num::NonZeroX::new an unstable const fn #68976

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Merged
merged 2 commits into from
Feb 10, 2020
Merged

Make num::NonZeroX::new an unstable const fn #68976

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0b20ce9
Make `num::NonZeroX::new` an unstable `const fn`
ecstatic-morse Feb 9, 2020
0755c41
Test `NonZeroU8::new` in a const context
ecstatic-morse Feb 9, 2020
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Make num::NonZeroX::new an unstable const fn
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@ecstatic-morse
ecstatic-morse committed Feb 9, 2020
commit 0b20ce97f7cc1360190cb9c2b102cdee4f487de2
3 changes: 2 additions & 1 deletion src/libcore/num/mod.rs
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Expand Up @@ -69,8 +69,9 @@ assert_eq!(size_of::<Option<core::num::", stringify!($Ty), ">>(), size_of::<", s

/// Creates a non-zero if the given value is not zero.
#[$stability]
#[rustc_const_unstable(feature = "const_nonzero_int_methods", issue = "53718")]
#[inline]
pub fn new(n: $Int) -> Option<Self> {
pub const fn new(n: $Int) -> Option<Self> {
if n != 0 {
// SAFETY: we just checked that there's no `0`
Some(unsafe { Self(n) })
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