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 // <vector> 10 11 // reference& operator=(bool) 12 13 #include <cassert> 14 #include <vector> 15 16 #include "test_macros.h" 17 test()18TEST_CONSTEXPR_CXX20 bool test() { 19 std::vector<bool> vec; 20 typedef std::vector<bool>::reference Ref; 21 vec.push_back(true); 22 vec.push_back(false); 23 Ref ref = vec[0]; 24 const Ref cref = vec[0]; 25 26 assert(ref); 27 ref = false; 28 assert(!vec[0]); 29 assert(!vec[1]); 30 ref = true; 31 assert(vec[0]); 32 assert(!vec[1]); 33 34 assert(cref); 35 36 #if TEST_STD_VER > 20 37 cref = false; 38 assert(!vec[0]); 39 assert(!vec[1]); 40 cref = true; 41 assert(vec[0]); 42 assert(!vec[1]); 43 #endif 44 45 return true; 46 } 47 main(int,char **)48int main(int, char**) { 49 test(); 50 #if TEST_STD_VER > 17 51 static_assert(test()); 52 #endif 53 54 return 0; 55 } 56