124 constexpr bool can_hash(int) {  in can_hash()  function
128 constexpr bool can_hash(long) {  in can_hash()  function
132 constexpr bool can_hash() {  in can_hash()  function
133   return can_hash<Hasher, Key>(0);  in can_hash()
156   static_assert(can_hash<Hash, Key&>(), "");  in test_hash_enabled()
157   static_assert(can_hash<Hash, Key const&>(), "");  in test_hash_enabled()
158   static_assert(can_hash<Hash, Key&&>(), "");  in test_hash_enabled()
159   static_assert(can_hash<Hash const, Key&>(), "");  in test_hash_enabled()
160   static_assert(can_hash<Hash const, Key const&>(), "");  in test_hash_enabled()
161   static_assert(can_hash<Hash const, Key&&>(), "");  in test_hash_enabled()
163   static_assert(can_hash<Hash, ConvertibleToSimple<Key>&>(), "");  in test_hash_enabled()
164   static_assert(can_hash<Hash, ConvertibleToSimple<Key> const&>(), "");  in test_hash_enabled()
165   static_assert(can_hash<Hash, ConvertibleToSimple<Key>&&>(), "");  in test_hash_enabled()
167   static_assert(can_hash<Hash, ConvertibleTo<Key>&>(), "");  in test_hash_enabled()
168   static_assert(can_hash<Hash, ConvertibleTo<Key> const&>(), "");  in test_hash_enabled()
169   static_assert(can_hash<Hash, ConvertibleTo<Key>&&>(), "");  in test_hash_enabled()
170   static_assert(can_hash<Hash, ConvertibleTo<Key> const&&>(), "");  in test_hash_enabled()
195   static_assert(!can_hash<Hash, Key&>(), "");  in test_hash_disabled()
196   static_assert(!can_hash<Hash, Key const&>(), "");  in test_hash_disabled()
197   static_assert(!can_hash<Hash, Key&&>(), "");  in test_hash_disabled()
198   static_assert(!can_hash<Hash const, Key&>(), "");  in test_hash_disabled()
199   static_assert(!can_hash<Hash const, Key const&>(), "");  in test_hash_disabled()
200   static_assert(!can_hash<Hash const, Key&&>(), "");  in test_hash_disabled()
202   static_assert(!can_hash<Hash, ConvertibleToSimple<Key>&>(), "");  in test_hash_disabled()
203   static_assert(!can_hash<Hash, ConvertibleToSimple<Key> const&>(), "");  in test_hash_disabled()
204   static_assert(!can_hash<Hash, ConvertibleToSimple<Key>&&>(), "");  in test_hash_disabled()
206   static_assert(!can_hash<Hash, ConvertibleTo<Key>&>(), "");  in test_hash_disabled()
207   static_assert(!can_hash<Hash, ConvertibleTo<Key> const&>(), "");  in test_hash_disabled()
208   static_assert(!can_hash<Hash, ConvertibleTo<Key>&&>(), "");  in test_hash_disabled()
209   static_assert(!can_hash<Hash, ConvertibleTo<Key> const&&>(), "");  in test_hash_disabled()