| //===----------------------------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // <string> |
| |
| // void shrink_to_fit(); |
| |
| #include <string> |
| #include <cassert> |
| |
| #include "test_macros.h" |
| #include "min_allocator.h" |
| |
| template <class S> |
| void |
| test(S s) |
| { |
| typename S::size_type old_cap = s.capacity(); |
| S s0 = s; |
| s.shrink_to_fit(); |
| LIBCPP_ASSERT(s.__invariants()); |
| assert(s == s0); |
| assert(s.capacity() <= old_cap); |
| assert(s.capacity() >= s.size()); |
| } |
| |
| int main(int, char**) |
| { |
| { |
| typedef std::string S; |
| S s; |
| test(s); |
| |
| s.assign(10, 'a'); |
| s.erase(5); |
| test(s); |
| |
| s.assign(100, 'a'); |
| s.erase(50); |
| test(s); |
| } |
| #if TEST_STD_VER >= 11 |
| { |
| typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S; |
| S s; |
| test(s); |
| |
| s.assign(10, 'a'); |
| s.erase(5); |
| test(s); |
| |
| s.assign(100, 'a'); |
| s.erase(50); |
| test(s); |
| } |
| #endif |
| |
| return 0; |
| } |