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>& operator=(charT c); 12 13 #include <string> 14 #include <cassert> 15 16 #include "test_macros.h" 17 #include "min_allocator.h" 18 19 template <class S> 20 void 21 test(S s1, typename S::value_type s2) 22 { 23 typedef typename S::traits_type T; 24 s1 = s2; 25 LIBCPP_ASSERT(s1.__invariants()); 26 assert(s1.size() == 1); 27 assert(T::eq(s1[0], s2)); 28 assert(s1.capacity() >= s1.size()); 29 } 30 31 int main(int, char**) 32 { 33 { 34 typedef std::string S; 35 test(S(), 'a'); 36 test(S("1"), 'a'); 37 test(S("123456789"), 'a'); 38 test(S("1234567890123456789012345678901234567890123456789012345678901234567890"), 'a'); 39 } 40 #if TEST_STD_VER >= 11 41 { 42 typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S; 43 test(S(), 'a'); 44 test(S("1"), 'a'); 45 test(S("123456789"), 'a'); 46 test(S("1234567890123456789012345678901234567890123456789012345678901234567890"), 'a'); 47 } 48 #endif 49 50 return 0; 51 } 52