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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 basic_string_view substr(size_type pos = 0, size_type n = npos)
// const;
// Throws: out_of_range if pos > size().
// Effects: Determines the effective length rlen of the string to reference as
// the smaller of n and size() - pos. Returns: basic_string_view(data()+pos,
// rlen).
#include "unittest.hpp"
#include <algorithm>
#include <libpmemobj++/string_view.hpp>
#include <stdexcept>
template <typename CharT>
void
test1(pmem::obj::basic_string_view<CharT> sv, size_t n, size_t pos)
{
pmem::obj::basic_string_view<CharT> sv1;
try {
sv1 = sv.substr(pos, n);
UT_ASSERT(pos <= sv.size());
} catch (const std::out_of_range &) {
UT_ASSERT(pos > sv.size());
return;
}
const size_t rlen = (std::min)(n, sv.size() - pos);
UT_ASSERT(sv1.size() == rlen);
for (size_t i = 0; i < rlen; ++i)
UT_ASSERT(sv[pos + i] == sv1[i]);
}
template <typename CharT>
void
test(const CharT *s)
{
typedef pmem::obj::basic_string_view<CharT> string_view_t;
string_view_t sv1(s);
test1(sv1, 0, 0);
test1(sv1, 1, 0);
test1(sv1, 20, 0);
test1(sv1, sv1.size(), 0);
test1(sv1, 0, 3);
test1(sv1, 2, 3);
test1(sv1, 100, 3);
test1(sv1, 0, string_view_t::npos);
test1(sv1, 2, string_view_t::npos);
test1(sv1, sv1.size(), string_view_t::npos);
test1(sv1, sv1.size() + 1, 0);
test1(sv1, sv1.size() + 1, 1);
test1(sv1, sv1.size() + 1, string_view_t::npos);
}
static void
run()
{
test("ABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDE");
test("ABCDE");
test("a");
test("");
test(L"ABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDE");
test(L"ABCDE");
test(L"a");
test(L"");
test(u"ABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDE");
test(u"ABCDE");
test(u"a");
test(u"");
test(U"ABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDE");
test(U"ABCDE");
test(U"a");
test(U"");
}
int
main(int argc, char *argv[])
{
return run_test([&] { run(); });
}
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