1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // <algorithm> 11 12 // template<InputIterator Iter1, InputIterator Iter2, 13 // Predicate<auto, Iter1::value_type, Iter2::value_type> Pred> 14 // requires CopyConstructible<Pred> 15 // bool 16 // equal(Iter1 first1, Iter1 last1, Iter2 first2, Pred pred); 17 18 #include <algorithm> 19 #include <functional> 20 #include <cassert> 21 22 #include "test_macros.h" 23 #include "test_iterators.h" 24 25 int comparison_count = 0; 26 template <typename T> 27 bool counting_equals ( const T &a, const T &b ) { 28 ++comparison_count; 29 return a == b; 30 } 31 32 int main() 33 { 34 int ia[] = {0, 1, 2, 3, 4, 5}; 35 const unsigned s = sizeof(ia)/sizeof(ia[0]); 36 int ib[s] = {0, 1, 2, 5, 4, 5}; 37 assert(std::equal(input_iterator<const int*>(ia), 38 input_iterator<const int*>(ia+s), 39 input_iterator<const int*>(ia), 40 std::equal_to<int>())); 41 #if TEST_STD_VER >= 14 42 assert(std::equal(input_iterator<const int*>(ia), 43 input_iterator<const int*>(ia+s), 44 input_iterator<const int*>(ia), 45 input_iterator<const int*>(ia+s), 46 std::equal_to<int>())); 47 assert(std::equal(random_access_iterator<const int*>(ia), 48 random_access_iterator<const int*>(ia+s), 49 random_access_iterator<const int*>(ia), 50 random_access_iterator<const int*>(ia+s), 51 std::equal_to<int>())); 52 53 comparison_count = 0; 54 assert(!std::equal(input_iterator<const int*>(ia), 55 input_iterator<const int*>(ia+s), 56 input_iterator<const int*>(ia), 57 input_iterator<const int*>(ia+s-1), 58 counting_equals<int>)); 59 assert(comparison_count > 0); 60 comparison_count = 0; 61 assert(!std::equal(random_access_iterator<const int*>(ia), 62 random_access_iterator<const int*>(ia+s), 63 random_access_iterator<const int*>(ia), 64 random_access_iterator<const int*>(ia+s-1), 65 counting_equals<int>)); 66 assert(comparison_count == 0); 67 #endif 68 assert(!std::equal(input_iterator<const int*>(ia), 69 input_iterator<const int*>(ia+s), 70 input_iterator<const int*>(ib), 71 std::equal_to<int>())); 72 #if TEST_STD_VER >= 14 73 assert(!std::equal(input_iterator<const int*>(ia), 74 input_iterator<const int*>(ia+s), 75 input_iterator<const int*>(ib), 76 input_iterator<const int*>(ib+s), 77 std::equal_to<int>())); 78 assert(!std::equal(random_access_iterator<const int*>(ia), 79 random_access_iterator<const int*>(ia+s), 80 random_access_iterator<const int*>(ib), 81 random_access_iterator<const int*>(ib+s), 82 std::equal_to<int>())); 83 #endif 84 } 85
