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 // void pop_back(); 12 13 #include <vector> 14 #include <cassert> 15 16 #include "test_macros.h" 17 #include "test_allocator.h" 18 #include "min_allocator.h" 19 20 tests()21TEST_CONSTEXPR_CXX20 bool tests() 22 { 23 { 24 std::vector<int> c; 25 c.push_back(1); 26 assert(c.size() == 1); 27 c.pop_back(); 28 assert(c.size() == 0); 29 30 } 31 #if TEST_STD_VER >= 11 32 { 33 std::vector<int, min_allocator<int>> c; 34 c.push_back(1); 35 assert(c.size() == 1); 36 c.pop_back(); 37 assert(c.size() == 0); 38 } 39 #endif 40 41 { // LWG 526 42 int arr[] = {0, 1, 2, 3, 4}; 43 int sz = 5; 44 std::vector<int> c(arr, arr+sz); 45 while (c.size() < c.capacity()) 46 c.push_back(sz++); 47 c.push_back(c.front()); 48 assert(c.back() == 0); 49 for (int i = 0; i < sz; ++i) 50 assert(c[i] == i); 51 } 52 53 return true; 54 } 55 main(int,char **)56int main(int, char**) 57 { 58 tests(); 59 #if TEST_STD_VER > 17 60 static_assert(tests()); 61 #endif 62 return 0; 63 } 64