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 // XFAIL: libcpp-no-exceptions 11 // <string> 12 13 // basic_string<charT,traits,Allocator>& 14 // assign(const basic_string<charT,traits>& str, size_type pos, size_type n=npos); 15 // the =npos was added for C++14 16 17 #include <string> 18 #include <stdexcept> 19 #include <cassert> 20 21 #include "test_macros.h" 22 #include "min_allocator.h" 23 24 template <class S> 25 void 26 test(S s, S str, typename S::size_type pos, typename S::size_type n, S expected) 27 { 28 try 29 { 30 s.assign(str, pos, n); 31 LIBCPP_ASSERT(s.__invariants()); 32 assert(pos <= str.size()); 33 assert(s == expected); 34 } 35 catch (std::out_of_range&) 36 { 37 assert(pos > str.size()); 38 } 39 } 40 41 template <class S> 42 void 43 test_npos(S s, S str, typename S::size_type pos, S expected) 44 { 45 try 46 { 47 s.assign(str, pos); 48 LIBCPP_ASSERT(s.__invariants()); 49 assert(pos <= str.size()); 50 assert(s == expected); 51 } 52 catch (std::out_of_range&) 53 { 54 assert(pos > str.size()); 55 } 56 } 57 58 int main() 59 { 60 { 61 typedef std::string S; 62 test(S(), S(), 0, 0, S()); 63 test(S(), S(), 1, 0, S()); 64 test(S(), S("12345"), 0, 3, S("123")); 65 test(S(), S("12345"), 1, 4, S("2345")); 66 test(S(), S("12345"), 3, 15, S("45")); 67 test(S(), S("12345"), 5, 15, S("")); 68 test(S(), S("12345"), 6, 15, S("not happening")); 69 test(S(), S("12345678901234567890"), 0, 0, S()); 70 test(S(), S("12345678901234567890"), 1, 1, S("2")); 71 test(S(), S("12345678901234567890"), 2, 3, S("345")); 72 test(S(), S("12345678901234567890"), 12, 13, S("34567890")); 73 test(S(), S("12345678901234567890"), 21, 13, S("not happening")); 74 75 test(S("12345"), S(), 0, 0, S()); 76 test(S("12345"), S("12345"), 2, 2, S("34")); 77 test(S("12345"), S("1234567890"), 0, 100, S("1234567890")); 78 79 test(S("12345678901234567890"), S(), 0, 0, S()); 80 test(S("12345678901234567890"), S("12345"), 1, 3, S("234")); 81 test(S("12345678901234567890"), S("12345678901234567890"), 5, 10, 82 S("6789012345")); 83 } 84 #if TEST_STD_VER >= 11 85 { 86 typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S; 87 test(S(), S(), 0, 0, S()); 88 test(S(), S(), 1, 0, S()); 89 test(S(), S("12345"), 0, 3, S("123")); 90 test(S(), S("12345"), 1, 4, S("2345")); 91 test(S(), S("12345"), 3, 15, S("45")); 92 test(S(), S("12345"), 5, 15, S("")); 93 test(S(), S("12345"), 6, 15, S("not happening")); 94 test(S(), S("12345678901234567890"), 0, 0, S()); 95 test(S(), S("12345678901234567890"), 1, 1, S("2")); 96 test(S(), S("12345678901234567890"), 2, 3, S("345")); 97 test(S(), S("12345678901234567890"), 12, 13, S("34567890")); 98 test(S(), S("12345678901234567890"), 21, 13, S("not happening")); 99 100 test(S("12345"), S(), 0, 0, S()); 101 test(S("12345"), S("12345"), 2, 2, S("34")); 102 test(S("12345"), S("1234567890"), 0, 100, S("1234567890")); 103 104 test(S("12345678901234567890"), S(), 0, 0, S()); 105 test(S("12345678901234567890"), S("12345"), 1, 3, S("234")); 106 test(S("12345678901234567890"), S("12345678901234567890"), 5, 10, 107 S("6789012345")); 108 } 109 #endif 110 { 111 typedef std::string S; 112 test_npos(S(), S(), 0, S()); 113 test_npos(S(), S(), 1, S()); 114 test_npos(S(), S("12345"), 0, S("12345")); 115 test_npos(S(), S("12345"), 1, S("2345")); 116 test_npos(S(), S("12345"), 3, S("45")); 117 test_npos(S(), S("12345"), 5, S("")); 118 test_npos(S(), S("12345"), 6, S("not happening")); 119 } 120 } 121
