1 //===----------------------------------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 // <string> 10 11 // basic_string<charT,traits,Allocator>& 12 // assign(basic_string_view<charT,traits> sv); 13 14 #include <string> 15 #include <string_view> 16 #include <cassert> 17 18 #include "test_macros.h" 19 #include "min_allocator.h" 20 #include "test_allocator.h" 21 22 template <class S, class SV> 23 void 24 test(S s, SV sv, S expected) 25 { 26 s.assign(sv); 27 LIBCPP_ASSERT(s.__invariants()); 28 assert(s == expected); 29 } 30 31 template <class S, class SV> 32 void 33 testAlloc(S s, SV sv, const typename S::allocator_type& a) 34 { 35 s.assign(sv); 36 LIBCPP_ASSERT(s.__invariants()); 37 assert(s == sv); 38 assert(s.get_allocator() == a); 39 } 40 41 int main() 42 { 43 { 44 typedef std::string S; 45 typedef std::string_view SV; 46 test(S(), SV(), S()); 47 test(S(), SV("12345"), S("12345")); 48 test(S(), SV("1234567890"), S("1234567890")); 49 test(S(), SV("12345678901234567890"), S("12345678901234567890")); 50 51 test(S("12345"), SV(), S()); 52 test(S("12345"), SV("12345"), S("12345")); 53 test(S("12345"), SV("1234567890"), S("1234567890")); 54 test(S("12345"), SV("12345678901234567890"), S("12345678901234567890")); 55 56 test(S("1234567890"), SV(), S()); 57 test(S("1234567890"), SV("12345"), S("12345")); 58 test(S("1234567890"), SV("1234567890"), S("1234567890")); 59 test(S("1234567890"), SV("12345678901234567890"), S("12345678901234567890")); 60 61 test(S("12345678901234567890"), SV(), S()); 62 test(S("12345678901234567890"), SV("12345"), S("12345")); 63 test(S("12345678901234567890"), SV("1234567890"), S("1234567890")); 64 test(S("12345678901234567890"), SV("12345678901234567890"), 65 S("12345678901234567890")); 66 67 testAlloc(S(), SV(), std::allocator<char>()); 68 testAlloc(S(), SV("12345"), std::allocator<char>()); 69 testAlloc(S(), SV("1234567890"), std::allocator<char>()); 70 testAlloc(S(), SV("12345678901234567890"), std::allocator<char>()); 71 } 72 73 #if TEST_STD_VER >= 11 74 { 75 typedef std::basic_string <char, std::char_traits<char>, min_allocator<char>> S; 76 typedef std::basic_string_view<char, std::char_traits<char> > SV; 77 test(S(), SV(), S()); 78 test(S(), SV("12345"), S("12345")); 79 test(S(), SV("1234567890"), S("1234567890")); 80 test(S(), SV("12345678901234567890"), S("12345678901234567890")); 81 82 test(S("12345"), SV(), S()); 83 test(S("12345"), SV("12345"), S("12345")); 84 test(S("12345"), SV("1234567890"), S("1234567890")); 85 test(S("12345"), SV("12345678901234567890"), S("12345678901234567890")); 86 87 test(S("1234567890"), SV(), S()); 88 test(S("1234567890"), SV("12345"), S("12345")); 89 test(S("1234567890"), SV("1234567890"), S("1234567890")); 90 test(S("1234567890"), SV("12345678901234567890"), S("12345678901234567890")); 91 92 test(S("12345678901234567890"), SV(), S()); 93 test(S("12345678901234567890"), SV("12345"), S("12345")); 94 test(S("12345678901234567890"), SV("1234567890"), S("1234567890")); 95 test(S("12345678901234567890"), SV("12345678901234567890"), 96 S("12345678901234567890")); 97 98 testAlloc(S(), SV(), min_allocator<char>()); 99 testAlloc(S(), SV("12345"), min_allocator<char>()); 100 testAlloc(S(), SV("1234567890"), min_allocator<char>()); 101 testAlloc(S(), SV("12345678901234567890"), min_allocator<char>()); 102 } 103 #endif 104 } 105