65 lines
1.7 KiB
C++
65 lines
1.7 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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// <array>
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// An string is a contiguous container
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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 "test_allocator.h"
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#include "min_allocator.h"
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template <class C>
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TEST_CONSTEXPR_CXX20 void test_contiguous ( const C &c )
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{
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for ( size_t i = 0; i < c.size(); ++i )
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assert ( *(c.begin() + static_cast<typename C::difference_type>(i)) == *(std::addressof(*c.begin()) + i));
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}
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TEST_CONSTEXPR_CXX20 bool test() {
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{
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typedef std::string S;
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test_contiguous(S());
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test_contiguous(S("1"));
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test_contiguous(S("1234567890123456789012345678901234567890123456789012345678901234567890"));
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}
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{
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typedef test_allocator<char> A;
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typedef std::basic_string<char, std::char_traits<char>, A> S;
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test_contiguous(S(A(3)));
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test_contiguous(S("1", A(5)));
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test_contiguous(S("1234567890123456789012345678901234567890123456789012345678901234567890", A(7)));
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}
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#if TEST_STD_VER >= 11
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{
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typedef min_allocator<char> A;
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typedef std::basic_string<char, std::char_traits<char>, A> S;
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test_contiguous(S(A{}));
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test_contiguous(S("1", A()));
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test_contiguous(S("1234567890123456789012345678901234567890123456789012345678901234567890", A()));
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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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