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 // Call __clear_and_shrink() and ensure string invariants hold 12 13 #include <string> 14 #include <cassert> 15 16 #include "test_macros.h" 17 18 int main(int, char**) 19 { 20 std::string l = "Long string so that allocation definitely, for sure, absolutely happens. Probably."; 21 std::string s = "short"; 22 23 assert(l.__invariants()); 24 assert(s.__invariants()); 25 26 s.__clear_and_shrink(); 27 assert(s.__invariants()); 28 assert(s.size() == 0); 29 30 { 31 std::string::size_type cap = l.capacity(); 32 l.__clear_and_shrink(); 33 assert(l.__invariants()); 34 assert(l.size() == 0); 35 assert(l.capacity() < cap); 36 } 37 38 return 0; 39 } 40