diff options
Diffstat (limited to 'library/std/src')
| -rw-r--r-- | library/std/src/collections/hash/map.rs | 9 | ||||
| -rw-r--r-- | library/std/src/lib.rs | 1 |
2 files changed, 7 insertions, 3 deletions
diff --git a/library/std/src/collections/hash/map.rs b/library/std/src/collections/hash/map.rs index 708edc5de47..df490358827 100644 --- a/library/std/src/collections/hash/map.rs +++ b/library/std/src/collections/hash/map.rs @@ -3161,14 +3161,16 @@ impl DefaultHasher { #[stable(feature = "hashmap_default_hasher", since = "1.13.0")] #[inline] #[allow(deprecated)] + #[rustc_const_unstable(feature = "const_hash", issue = "104061")] #[must_use] - pub fn new() -> DefaultHasher { + pub const fn new() -> DefaultHasher { DefaultHasher(SipHasher13::new_with_keys(0, 0)) } } #[stable(feature = "hashmap_default_hasher", since = "1.13.0")] -impl Default for DefaultHasher { +#[rustc_const_unstable(feature = "const_hash", issue = "104061")] +impl const Default for DefaultHasher { /// Creates a new `DefaultHasher` using [`new`]. /// See its documentation for more. /// @@ -3180,7 +3182,8 @@ impl Default for DefaultHasher { } #[stable(feature = "hashmap_default_hasher", since = "1.13.0")] -impl Hasher for DefaultHasher { +#[rustc_const_unstable(feature = "const_hash", issue = "104061")] +impl const Hasher for DefaultHasher { // The underlying `SipHasher13` doesn't override the other // `write_*` methods, so it's ok not to forward them here. diff --git a/library/std/src/lib.rs b/library/std/src/lib.rs index 385585dada8..9334c833bb6 100644 --- a/library/std/src/lib.rs +++ b/library/std/src/lib.rs @@ -352,6 +352,7 @@ // // Only for const-ness: #![feature(const_collections_with_hasher)] +#![feature(const_hash)] #![feature(const_io_structs)] #![feature(const_ip)] #![feature(const_ipv4)] |