std::hash< std::tuple< Ts... > > Struct Template Reference

#include <Hash.h>

Public Types
using	folly_is_avalanching = folly::bool_constant<(sizeof...(Ts)!=1||folly::IsAvalanchingHasher< std::hash< FirstT >, FirstT >::value)>

Public Member Functions
size_t	operator() (std::tuple< Ts... > const &key) const

Private Types
using	FirstT = std::decay_t< std::tuple_element_t< 0, std::tuple< Ts..., bool >>>

Detailed Description

template<typename... Ts>
struct std::hash< std::tuple< Ts... > >

Definition at line 725 of file Hash.h.

Member Typedef Documentation

template<typename... Ts>

using std::hash< std::tuple< Ts... > >::FirstT = std::decay_t<std::tuple_element_t<0, std::tuple<Ts..., bool>>>

private

Definition at line 727 of file Hash.h.

template<typename... Ts>

using std::hash< std::tuple< Ts... > >::folly_is_avalanching = folly::bool_constant<( sizeof...(Ts) != 1 || folly::IsAvalanchingHasher<std::hash<FirstT>, FirstT>::value)>

Definition at line 732 of file Hash.h.

Member Function Documentation

template<typename... Ts>

size_t std::hash< std::tuple< Ts... > >::operator() ( std::tuple< Ts... > const &  key ) const

inline

Definition at line 734 of file Hash.h.

References testing::Args().

                                                      {
    folly::TupleHasher<
        sizeof...(Ts) - 1, // start index
        Ts...>
        hasher;

    return hasher(key);
  }

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The documentation for this struct was generated from the following file:

• proxygen/folly/folly/hash/Hash.h