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// { dg-do run { target c++17 } }
// Copyright (C) 2018-2022 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING3. If not see
// <http://www.gnu.org/licenses/>.
// C++17 30.10.8.4.3 path appends [fs.path.append]
#include <filesystem>
#include <string_view>
#include <testsuite_fs.h>
#include <testsuite_iterators.h>
using std::filesystem::path;
using __gnu_test::compare_paths;
// path::operator/=(const Source& source)
// path::append(const Source& source)
// Equivalent to: return operator/=(path(source));
// path::append(InputIterator first, InputIterator last)
// Equivalent to: return operator/=(path(first, last));
template<typename Char>
void test(const path& p, const Char* s)
{
path expected = p;
expected /= path(s);
path oper = p;
oper /= s;
path func = p;
func.append(s);
__gnu_test::test_container<const Char, __gnu_test::input_iterator_wrapper>
input_range(s, s + std::char_traits<Char>::length(s));
path range = p;
range.append(input_range.begin(), input_range.end());
compare_paths( oper, expected );
compare_paths( func, expected );
compare_paths( range, expected );
}
void
test01()
{
test( "/foo/bar", "/foo/" );
test( "baz", "baz" );
test( "baz/", "baz" );
test( "baz", "/foo/bar" );
test( "baz/", "/foo/bar" );
test( "", "" );
test( "", "rel" );
test( "dir/", "/file" );
test( "dir/", "file" );
}
void
test02()
{
// C++17 [fs.path.append] p4
test( "//host", "foo" );
test( "//host/", "foo" );
test( "foo", "" );
test( "foo", "/bar" );
test( "foo", "c:/bar" );
test( "foo", "c:" );
test( "c:", "" );
test( "c:foo", "/bar" );
test( "foo", "c:\\bar" );
}
void
test03()
{
for (const path p : __gnu_test::test_paths)
for (const path q : __gnu_test::test_paths)
{
test(p, q.c_str());
if constexpr (!std::is_same_v<path::value_type, char>)
test(p, q.string().c_str());
}
}
void
test04()
{
#ifdef _GLIBCXX_USE_WCHAR_T
test( "foo", L"/bar" );
test( L"foo", "/bar" );
test( L"foo", L"/bar" );
#endif
}
void
test05()
{
std::basic_string_view<path::value_type> s;
path p = "0/1/2/3/4/5/6";
// The string_view aliases the path's internal string:
s = p.native();
path::string_type expected(s);
expected += path::preferred_separator;
expected += s;
// Append that string_view, which must work correctly even though the
// internal string will be reallocated during the operation:
p /= s;
compare_paths(p, expected);
// Same again with a trailing slash:
path p2 = "0/1/2/3/4/5/";
s = p2.native();
expected = s;
expected += s;
p2 /= s;
compare_paths(p2, expected);
// And aliasing one of the components of the path:
path p3 = "0/123456789/a";
path::iterator second = std::next(p3.begin());
s = second->native();
expected = p3.native() + path::preferred_separator;
expected += s;
p3 /= s;
compare_paths(p3, expected);
}
void
test06()
{
const std::string s0 = "a/b/c";
path p = s0;
std::string s;
for (int i = 0; i < 10; ++i)
s += "0/1/2/3/4/5/6/7/8/9/";
// append a long string with many components
test(p, s.c_str());
// Same again but with a trailing slash on the left operand:
path p2 = s0 + '/';
test(p2, s.c_str());
}
void
test07()
{
path p, p0;
std::string_view s;
p /= s; // PR libstdc++/97167
compare_paths(p, p0);
}
int
main()
{
test01();
test02();
test03();
test04();
test05();
test06();
test07();
}
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