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45 lines
1.2 KiB
C++
45 lines
1.2 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef TEST_COMPARE_H
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#define TEST_COMPARE_H
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#include <cstddef>
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#include <type_traits>
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#include <cstdlib>
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#include <new>
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#include <climits>
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template <class C>
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class test_compare
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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_compare(int data = 0) : data_(data) {}
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typename C::result_type
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operator()(typename std::add_lvalue_reference<const typename C::first_argument_type>::type x,
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typename std::add_lvalue_reference<const typename C::second_argument_type>::type y) const
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{return C::operator()(x, y);}
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bool operator==(const test_compare& c) const
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{return data_ == c.data_;}
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};
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template <class C>
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class non_const_compare
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{
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// operator() deliberately not marked as 'const'
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bool operator()(const C& x, const C& y) { return x < y; }
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};
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#endif // TEST_COMPARE_H
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