60 lines
1.1 KiB
C++
60 lines
1.1 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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// iterator begin();
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// const_iterator begin() const;
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#include <string>
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#include <cassert>
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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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TEST_CONSTEXPR_CXX20 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::iterator b = s.begin();
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typename S::const_iterator cb = cs.begin();
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if (!s.empty())
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{
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assert(*b == s[0]);
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}
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assert(b == cb);
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}
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bool test() {
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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 true;
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}
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int main(int, char**)
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{
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test();
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#if TEST_STD_VER > 17
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// static_assert(test());
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#endif
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return 0;
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}
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