1 #ifndef TEST_COMPARE_H 2 #define TEST_COMPARE_H 3 4 #include <cstddef> 5 #include <type_traits> 6 #include <cstdlib> 7 #include <new> 8 #include <climits> 9 10 template <class C> 11 class test_compare 12 : private C 13 { 14 int data_; 15 public: 16 explicit test_compare(int data = 0) : data_(data) {} 17 18 typename C::result_type 19 operator()(typename std::add_lvalue_reference<const typename C::first_argument_type>::type x, 20 typename std::add_lvalue_reference<const typename C::second_argument_type>::type y) const 21 {return C::operator()(x, y);} 22 23 bool operator==(const test_compare& c) const 24 {return data_ == c.data_;} 25 }; 26 27 #endif // TEST_COMPARE_H 28
