diff options
| -rw-r--r-- | library/core/src/convert/num.rs | 15 | ||||
| -rw-r--r-- | library/core/src/lib.rs | 1 |
2 files changed, 11 insertions, 5 deletions
diff --git a/library/core/src/convert/num.rs b/library/core/src/convert/num.rs index 1d3a1296214..75ef873abc9 100644 --- a/library/core/src/convert/num.rs +++ b/library/core/src/convert/num.rs @@ -45,7 +45,8 @@ impl_float_to_int!(f64 => u8 u16 u32 u64 u128 usize i8 i16 i32 i64 i128 isize); macro_rules! impl_from { ($Small: ty, $Large: ty, #[$attr:meta], $doc: expr) => { #[$attr] - impl From<$Small> for $Large { + #[rustc_const_unstable(feature = "const_num_from_num", issue = "87852")] + impl const From<$Small> for $Large { // Rustdocs on the impl block show a "[+] show undocumented items" toggle. // Rustdocs on functions do not. #[doc = $doc] @@ -172,7 +173,8 @@ impl_from! { f32, f64, #[stable(feature = "lossless_float_conv", since = "1.6.0" macro_rules! try_from_unbounded { ($source:ty, $($target:ty),*) => {$( #[stable(feature = "try_from", since = "1.34.0")] - impl TryFrom<$source> for $target { + #[rustc_const_unstable(feature = "const_num_from_num", issue = "87852")] + impl const TryFrom<$source> for $target { type Error = TryFromIntError; /// Try to create the target number type from a source @@ -190,7 +192,8 @@ macro_rules! try_from_unbounded { macro_rules! try_from_lower_bounded { ($source:ty, $($target:ty),*) => {$( #[stable(feature = "try_from", since = "1.34.0")] - impl TryFrom<$source> for $target { + #[rustc_const_unstable(feature = "const_num_from_num", issue = "87852")] + impl const TryFrom<$source> for $target { type Error = TryFromIntError; /// Try to create the target number type from a source @@ -212,7 +215,8 @@ macro_rules! try_from_lower_bounded { macro_rules! try_from_upper_bounded { ($source:ty, $($target:ty),*) => {$( #[stable(feature = "try_from", since = "1.34.0")] - impl TryFrom<$source> for $target { + #[rustc_const_unstable(feature = "const_num_from_num", issue = "87852")] + impl const TryFrom<$source> for $target { type Error = TryFromIntError; /// Try to create the target number type from a source @@ -234,7 +238,8 @@ macro_rules! try_from_upper_bounded { macro_rules! try_from_both_bounded { ($source:ty, $($target:ty),*) => {$( #[stable(feature = "try_from", since = "1.34.0")] - impl TryFrom<$source> for $target { + #[rustc_const_unstable(feature = "const_num_from_num", issue = "87852")] + impl const TryFrom<$source> for $target { type Error = TryFromIntError; /// Try to create the target number type from a source diff --git a/library/core/src/lib.rs b/library/core/src/lib.rs index 222ef34b6aa..37c3f8d4c16 100644 --- a/library/core/src/lib.rs +++ b/library/core/src/lib.rs @@ -99,6 +99,7 @@ #![feature(const_slice_from_raw_parts)] #![feature(const_slice_ptr_len)] #![feature(const_swap)] +#![feature(const_trait_impl)] #![feature(const_type_id)] #![feature(const_type_name)] #![feature(const_unreachable_unchecked)] |