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 // <string> 11 12 // template<class InputIterator> 13 // basic_string& assign(InputIterator first, InputIterator last); 14 15 #include <string> 16 #include <cassert> 17 18 #include "test_iterators.h" 19 #include "min_allocator.h" 20 21 template <class S, class It> 22 void 23 test(S s, It first, It last, S expected) 24 { 25 s.assign(first, last); 26 assert(s.__invariants()); 27 assert(s == expected); 28 } 29 30 template <class S, class It> 31 void 32 test_exceptions(S s, It first, It last) 33 { 34 S aCopy = s; 35 try { 36 s.assign(first, last); 37 assert(false); 38 } 39 catch (...) {} 40 assert(s.__invariants()); 41 assert(s == aCopy); 42 } 43 44 int main() 45 { 46 { 47 typedef std::string S; 48 const char* s = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"; 49 test(S(), s, s, S()); 50 test(S(), s, s+1, S("A")); 51 test(S(), s, s+10, S("ABCDEFGHIJ")); 52 test(S(), s, s+52, S("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz")); 53 54 test(S("12345"), s, s, S()); 55 test(S("12345"), s, s+1, S("A")); 56 test(S("12345"), s, s+10, S("ABCDEFGHIJ")); 57 test(S("12345"), s, s+52, S("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz")); 58 59 test(S("1234567890"), s, s, S()); 60 test(S("1234567890"), s, s+1, S("A")); 61 test(S("1234567890"), s, s+10, S("ABCDEFGHIJ")); 62 test(S("1234567890"), s, s+52, S("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz")); 63 64 test(S("12345678901234567890"), s, s, S()); 65 test(S("12345678901234567890"), s, s+1, S("A")); 66 test(S("12345678901234567890"), s, s+10, S("ABCDEFGHIJ")); 67 test(S("12345678901234567890"), s, s+52, 68 S("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz")); 69 70 test(S(), input_iterator<const char*>(s), input_iterator<const char*>(s), S()); 71 test(S(), input_iterator<const char*>(s), input_iterator<const char*>(s+1), S("A")); 72 test(S(), input_iterator<const char*>(s), input_iterator<const char*>(s+10), 73 S("ABCDEFGHIJ")); 74 test(S(), input_iterator<const char*>(s), input_iterator<const char*>(s+52), 75 S("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz")); 76 77 test(S("12345"), input_iterator<const char*>(s), input_iterator<const char*>(s), 78 S()); 79 test(S("12345"), input_iterator<const char*>(s), input_iterator<const char*>(s+1), 80 S("A")); 81 test(S("12345"), input_iterator<const char*>(s), input_iterator<const char*>(s+10), 82 S("ABCDEFGHIJ")); 83 test(S("12345"), input_iterator<const char*>(s), input_iterator<const char*>(s+52), 84 S("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz")); 85 86 test(S("1234567890"), input_iterator<const char*>(s), input_iterator<const char*>(s), 87 S()); 88 test(S("1234567890"), input_iterator<const char*>(s), input_iterator<const char*>(s+1), 89 S("A")); 90 test(S("1234567890"), input_iterator<const char*>(s), input_iterator<const char*>(s+10), 91 S("ABCDEFGHIJ")); 92 test(S("1234567890"), input_iterator<const char*>(s), input_iterator<const char*>(s+52), 93 S("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz")); 94 95 test(S("12345678901234567890"), input_iterator<const char*>(s), input_iterator<const char*>(s), 96 S()); 97 test(S("12345678901234567890"), input_iterator<const char*>(s), input_iterator<const char*>(s+1), 98 S("A")); 99 test(S("12345678901234567890"), input_iterator<const char*>(s), input_iterator<const char*>(s+10), 100 S("ABCDEFGHIJ")); 101 test(S("12345678901234567890"), input_iterator<const char*>(s), input_iterator<const char*>(s+52), 102 S("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz")); 103 } 104 #if __cplusplus >= 201103L 105 { 106 typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S; 107 const char* s = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"; 108 test(S(), s, s, S()); 109 test(S(), s, s+1, S("A")); 110 test(S(), s, s+10, S("ABCDEFGHIJ")); 111 test(S(), s, s+52, S("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz")); 112 113 test(S("12345"), s, s, S()); 114 test(S("12345"), s, s+1, S("A")); 115 test(S("12345"), s, s+10, S("ABCDEFGHIJ")); 116 test(S("12345"), s, s+52, S("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz")); 117 118 test(S("1234567890"), s, s, S()); 119 test(S("1234567890"), s, s+1, S("A")); 120 test(S("1234567890"), s, s+10, S("ABCDEFGHIJ")); 121 test(S("1234567890"), s, s+52, S("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz")); 122 123 test(S("12345678901234567890"), s, s, S()); 124 test(S("12345678901234567890"), s, s+1, S("A")); 125 test(S("12345678901234567890"), s, s+10, S("ABCDEFGHIJ")); 126 test(S("12345678901234567890"), s, s+52, 127 S("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz")); 128 129 test(S(), input_iterator<const char*>(s), input_iterator<const char*>(s), S()); 130 test(S(), input_iterator<const char*>(s), input_iterator<const char*>(s+1), S("A")); 131 test(S(), input_iterator<const char*>(s), input_iterator<const char*>(s+10), 132 S("ABCDEFGHIJ")); 133 test(S(), input_iterator<const char*>(s), input_iterator<const char*>(s+52), 134 S("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz")); 135 136 test(S("12345"), input_iterator<const char*>(s), input_iterator<const char*>(s), 137 S()); 138 test(S("12345"), input_iterator<const char*>(s), input_iterator<const char*>(s+1), 139 S("A")); 140 test(S("12345"), input_iterator<const char*>(s), input_iterator<const char*>(s+10), 141 S("ABCDEFGHIJ")); 142 test(S("12345"), input_iterator<const char*>(s), input_iterator<const char*>(s+52), 143 S("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz")); 144 145 test(S("1234567890"), input_iterator<const char*>(s), input_iterator<const char*>(s), 146 S()); 147 test(S("1234567890"), input_iterator<const char*>(s), input_iterator<const char*>(s+1), 148 S("A")); 149 test(S("1234567890"), input_iterator<const char*>(s), input_iterator<const char*>(s+10), 150 S("ABCDEFGHIJ")); 151 test(S("1234567890"), input_iterator<const char*>(s), input_iterator<const char*>(s+52), 152 S("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz")); 153 154 test(S("12345678901234567890"), input_iterator<const char*>(s), input_iterator<const char*>(s), 155 S()); 156 test(S("12345678901234567890"), input_iterator<const char*>(s), input_iterator<const char*>(s+1), 157 S("A")); 158 test(S("12345678901234567890"), input_iterator<const char*>(s), input_iterator<const char*>(s+10), 159 S("ABCDEFGHIJ")); 160 test(S("12345678901234567890"), input_iterator<const char*>(s), input_iterator<const char*>(s+52), 161 S("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz")); 162 } 163 #endif 164 { // test iterator operations that throw 165 typedef std::string S; 166 typedef ThrowingIterator<char> TIter; 167 typedef input_iterator<TIter> IIter; 168 const char* s = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"; 169 test_exceptions(S(), IIter(TIter(s, s+10, 4, TIter::TAIncrement)), IIter()); 170 test_exceptions(S(), IIter(TIter(s, s+10, 5, TIter::TADereference)), IIter()); 171 test_exceptions(S(), IIter(TIter(s, s+10, 6, TIter::TAComparison)), IIter()); 172 173 test_exceptions(S(), TIter(s, s+10, 4, TIter::TAIncrement), TIter()); 174 test_exceptions(S(), TIter(s, s+10, 5, TIter::TADereference), TIter()); 175 test_exceptions(S(), TIter(s, s+10, 6, TIter::TAComparison), TIter()); 176 } 177 } 178