pair.h

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// SPDX-License-Identifier: BSD-3-Clause
#ifndef TTG_UTIL_HASH_STD_PAIR_H
#define TTG_UTIL_HASH_STD_PAIR_H
 
#include "ttg/util/hash.h"
 
#include <utility>
 
namespace ttg::overload {
 
  template <typename T1, typename T2>
  struct hash<std::pair<T1, T2>,
              std::enable_if_t<meta::has_ttg_hash_specialization_v<T1> && meta::has_ttg_hash_specialization_v<T2>>> {
    auto operator()(const std::pair<T1, T2>& t) const {
      std::size_t seed = 0;
      hash_combine(seed, t.first);
      hash_combine(seed, t.second);
      return seed;
    }
  };
 
}  // namespace ttg::overload
 
#endif  // TTG_UTIL_HASH_PAIR_H