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//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
//
// Copyright 2020, Intel Corporation
//
// Modified to test pmem::obj containers
//
// <string_view>
// constexpr const _CharT& operator[](size_type _pos) const;
#include "unittest.hpp"
#include <type_traits>
#include <libpmemobj++/string_view.hpp>
template <typename CharT>
void
test(const CharT *s, size_t len)
{
typedef pmem::obj::basic_string_view<CharT> SV;
SV sv(s, len);
static_assert(std::is_same<decltype(sv[0]),
typename SV::const_reference>::value,
"must be const_reference");
UT_ASSERT(noexcept(sv[0]) == true);
UT_ASSERT(sv.length() == len);
for (size_t i = 0; i < len; ++i) {
UT_ASSERT(sv[i] == s[i]);
UT_ASSERT(&sv[i] == s + i);
}
}
static void
run()
{
test("ABCDE", 5);
test("a", 1);
test(L"ABCDE", 5);
test(L"a", 1);
test(u"ABCDE", 5);
test(u"a", 1);
test(U"ABCDE", 5);
test(U"a", 1);
{
constexpr pmem::obj::basic_string_view<char> sv("ABC", 2);
static_assert(sv.length() == 2, "");
static_assert(sv[0] == 'A', "");
static_assert(sv[1] == 'B', "");
}
}
int
main(int argc, char *argv[])
{
return run_test([&] { run(); });
}
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