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 typedef std::vector<int> C; 24 C c; 25 ASSERT_NOEXCEPT(c.empty()); 26 assert(c.empty()); 27 c.push_back(C::value_type(1)); 28 assert(!c.empty()); 29 c.clear(); 30 assert(c.empty()); 31 } 32 #if TEST_STD_VER >= 11 33 { 34 typedef std::vector<int, min_allocator<int>> C; 35 C c; 36 ASSERT_NOEXCEPT(c.empty()); 37 assert(c.empty()); 38 c.push_back(C::value_type(1)); 39 assert(!c.empty()); 40 c.clear(); 41 assert(c.empty()); 42 } 43 { 44 typedef std::vector<int, safe_allocator<int>> C; 45 C c; 46 ASSERT_NOEXCEPT(c.empty()); 47 assert(c.empty()); 48 c.push_back(C::value_type(1)); 49 assert(!c.empty()); 50 c.clear(); 51 assert(c.empty()); 52 } 53 #endif 54 55 return true; 56 } 57 main(int,char **)58int main(int, char**) 59 { 60 tests(); 61 #if TEST_STD_VER > 17 62 static_assert(tests()); 63 #endif 64 return 0; 65 } 66