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Diffstat (limited to 'absl/hash/internal/hash.h')
| -rw-r--r-- | absl/hash/internal/hash.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/absl/hash/internal/hash.h b/absl/hash/internal/hash.h index a71bd4a65df8..9e608f7c3c29 100644 --- a/absl/hash/internal/hash.h +++ b/absl/hash/internal/hash.h @@ -551,6 +551,13 @@ typename std::enable_if<is_hashable<Key>::value, H>::type AbslHashValue( // AbslHashValue for Wrapper Types // ----------------------------------------------------------------------------- +// AbslHashValue for hashing std::reference_wrapper +template <typename H, typename T> +typename std::enable_if<is_hashable<T>::value, H>::type AbslHashValue( + H hash_state, std::reference_wrapper<T> opt) { + return H::combine(std::move(hash_state), opt.get()); +} + // AbslHashValue for hashing absl::optional template <typename H, typename T> typename std::enable_if<is_hashable<T>::value, H>::type AbslHashValue( |