| //===----------------------------------------------------------------------===// |
| // |
| // 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> |
| |
| // reverse_iterator rend(); |
| // const_reverse_iterator rend() const; |
| |
| #include <string> |
| #include <cassert> |
| #include <cstddef> |
| |
| #include "test_macros.h" |
| #include "min_allocator.h" |
| |
| template <class S> |
| void |
| test(S s) |
| { |
| const S& cs = s; |
| typename S::reverse_iterator e = s.rend(); |
| typename S::const_reverse_iterator ce = cs.rend(); |
| if (s.empty()) |
| { |
| assert(e == s.rbegin()); |
| assert(ce == cs.rbegin()); |
| } |
| assert(static_cast<std::size_t>(e - s.rbegin()) == s.size()); |
| assert(static_cast<std::size_t>(ce - cs.rbegin()) == cs.size()); |
| } |
| |
| int main(int, char**) |
| { |
| { |
| typedef std::string S; |
| test(S()); |
| test(S("123")); |
| } |
| #if TEST_STD_VER >= 11 |
| { |
| typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S; |
| test(S()); |
| test(S("123")); |
| } |
| #endif |
| |
| return 0; |
| } |