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 // XFAIL: LIBCXX-AIX-FIXME 10 11 // <string> 12 13 // basic_string<charT,traits,Allocator>& 14 // append(basic_string_view<charT,traits> sv); // constexpr since C++20 15 16 #include <string> 17 #include <string_view> 18 #include <cassert> 19 20 #include "test_macros.h" 21 #include "min_allocator.h" 22 23 template <class S, class SV> 24 TEST_CONSTEXPR_CXX20 void 25 test(S s, SV sv, S expected) 26 { 27 s.append(sv); 28 LIBCPP_ASSERT(s.__invariants()); 29 assert(s == expected); 30 } 31 32 TEST_CONSTEXPR_CXX20 bool test() { 33 { 34 typedef std::string S; 35 typedef std::string_view SV; 36 test(S(), SV(), S()); 37 test(S(), SV("12345"), S("12345")); 38 test(S(), SV("1234567890"), S("1234567890")); 39 test(S(), SV("12345678901234567890"), S("12345678901234567890")); 40 41 test(S("12345"), SV(), S("12345")); 42 test(S("12345"), SV("12345"), S("1234512345")); 43 test(S("12345"), SV("1234567890"), S("123451234567890")); 44 test(S("12345"), SV("12345678901234567890"), S("1234512345678901234567890")); 45 46 test(S("1234567890"), SV(), S("1234567890")); 47 test(S("1234567890"), SV("12345"), S("123456789012345")); 48 test(S("1234567890"), SV("1234567890"), S("12345678901234567890")); 49 test(S("1234567890"), SV("12345678901234567890"), S("123456789012345678901234567890")); 50 51 test(S("12345678901234567890"), SV(), S("12345678901234567890")); 52 test(S("12345678901234567890"), SV("12345"), S("1234567890123456789012345")); 53 test(S("12345678901234567890"), SV("1234567890"), S("123456789012345678901234567890")); 54 test(S("12345678901234567890"), SV("12345678901234567890"), 55 S("1234567890123456789012345678901234567890")); 56 } 57 #if TEST_STD_VER >= 11 58 { 59 typedef std::basic_string <char, std::char_traits<char>, min_allocator<char>> S; 60 typedef std::basic_string_view<char, std::char_traits<char> > SV; 61 test(S(), SV(), S()); 62 test(S(), SV("12345"), S("12345")); 63 test(S(), SV("1234567890"), S("1234567890")); 64 test(S(), SV("12345678901234567890"), S("12345678901234567890")); 65 66 test(S("12345"), SV(), S("12345")); 67 test(S("12345"), SV("12345"), S("1234512345")); 68 test(S("12345"), SV("1234567890"), S("123451234567890")); 69 test(S("12345"), SV("12345678901234567890"), S("1234512345678901234567890")); 70 71 test(S("1234567890"), SV(), S("1234567890")); 72 test(S("1234567890"), SV("12345"), S("123456789012345")); 73 test(S("1234567890"), SV("1234567890"), S("12345678901234567890")); 74 test(S("1234567890"), SV("12345678901234567890"), S("123456789012345678901234567890")); 75 76 test(S("12345678901234567890"), SV(), S("12345678901234567890")); 77 test(S("12345678901234567890"), SV("12345"), S("1234567890123456789012345")); 78 test(S("12345678901234567890"), SV("1234567890"), S("123456789012345678901234567890")); 79 test(S("12345678901234567890"), SV("12345678901234567890"), 80 S("1234567890123456789012345678901234567890")); 81 } 82 #endif 83 84 return true; 85 } 86 87 int main(int, char**) 88 { 89 test(); 90 #if TEST_STD_VER > 17 91 static_assert(test()); 92 #endif 93 94 return 0; 95 } 96