24 lines
473 B
C
24 lines
473 B
C
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#ifndef TEST_HASH_H
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#define TEST_HASH_H
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#include <cstddef>
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#include <type_traits>
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template <class C>
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class test_hash
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: private C
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{
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int data_;
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public:
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explicit test_hash(int data = 0) : data_(data) {}
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std::size_t
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operator()(typename std::add_lvalue_reference<const typename C::argument_type>::type x) const
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{return C::operator()(x);}
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bool operator==(const test_hash& c) const
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{return data_ == c.data_;}
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};
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#endif // TEST_HASH_H
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