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 // class vector 12 13 // bool empty() const noexcept; 14 15 #include <vector> 16 #include <cassert> 17 18 #include "test_macros.h" 19 #include "min_allocator.h" 20 tests()21TEST_CONSTEXPR_CXX20 bool tests() 22 { 23 { 24 typedef std::vector<bool> C; 25 C c; 26 ASSERT_NOEXCEPT(c.empty()); 27 assert(c.empty()); 28 c.push_back(false); 29 assert(!c.empty()); 30 c.clear(); 31 assert(c.empty()); 32 } 33 #if TEST_STD_VER >= 11 34 { 35 typedef std::vector<bool, min_allocator<bool>> C; 36 C c; 37 ASSERT_NOEXCEPT(c.empty()); 38 assert(c.empty()); 39 c.push_back(false); 40 assert(!c.empty()); 41 c.clear(); 42 assert(c.empty()); 43 } 44 #endif 45 46 return true; 47 } 48 main(int,char **)49int main(int, char**) 50 { 51 tests(); 52 #if TEST_STD_VER > 17 53 static_assert(tests()); 54 #endif 55 return 0; 56 } 57