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54 lines
1.2 KiB
C++
54 lines
1.2 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// <string>
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// reverse_iterator rend();
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// const_reverse_iterator rend() const;
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#include <string>
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#include <cassert>
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#include <cstddef>
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#include "test_macros.h"
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#include "min_allocator.h"
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template <class S>
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void
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test(S s)
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{
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const S& cs = s;
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typename S::reverse_iterator e = s.rend();
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typename S::const_reverse_iterator ce = cs.rend();
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if (s.empty())
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{
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assert(e == s.rbegin());
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assert(ce == cs.rbegin());
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}
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assert(static_cast<std::size_t>(e - s.rbegin()) == s.size());
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assert(static_cast<std::size_t>(ce - cs.rbegin()) == cs.size());
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}
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int main(int, char**)
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{
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{
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typedef std::string S;
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test(S());
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test(S("123"));
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}
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#if TEST_STD_VER >= 11
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{
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typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
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test(S());
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test(S("123"));
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}
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#endif
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return 0;
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}
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