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// { dg-do run { target c++17 } }
// Copyright (C) 2014-2023 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/>.
// 30.10.7.4.4 path concatenation [fs.path.concat]
#include <filesystem>
#include <testsuite_hooks.h>
#include <testsuite_iterators.h>
#include <testsuite_fs.h>
using std::filesystem::path;
using __gnu_test::compare_paths;
void
test01()
{
path p("/");
p += "foo";
VERIFY( p.filename().string() == "foo" );
p += "bar";
VERIFY( p.filename().string() == "foobar" );
p += '/';
VERIFY( p.parent_path().string() == "/foobar" );
VERIFY( p.filename().string() == "" );
#if _GLIBCXX_USE_WCHAR_T
VERIFY( p.parent_path().wstring() == L"/foobar" );
VERIFY( p.filename().wstring() == L"" );
p += L"baz.txt";
#else
p += "baz.txt";
#endif
VERIFY( p.filename().string() == "baz.txt" );
p.concat("/dir/");
// N.B. on Windows p.parent_path() is "/foobar\\baz.txt\\dir"
VERIFY( p.parent_path() == path("/foobar/baz.txt/dir") );
VERIFY( p.filename().string() == "" );
const char file[] = "file";
__gnu_test::test_container<const char, __gnu_test::input_iterator_wrapper>
input(file, file + 4);
p.concat(input.begin(), input.end());
VERIFY( p.filename().string() == file );
}
void
test02()
{
std::basic_string_view<path::value_type> s, expected;
path p = "0/1/2/3/4/5/6";
// The string_view aliases the path's internal string:
s = p.native();
// Append that string_view, which must work correctly even though the
// internal string will be reallocated during the operation:
p += s;
compare_paths(p, "0/1/2/3/4/5/60/1/2/3/4/5/6");
// Same again with a trailing slash:
path p2 = "0/1/2/3/4/5/";
s = p2.native();
p2 += s;
compare_paths(p2, "0/1/2/3/4/5/0/1/2/3/4/5/");
// And aliasing one of the components of the path:
path p3 = "0/123456789";
path::iterator second = std::next(p3.begin());
s = second->native();
p3 += s;
compare_paths(p3, "0/123456789123456789" );
}
void
test03()
{
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/";
// concat a long string with many components:
p += s;
compare_paths(p, path(s0+s));
// Same again but with a trailing slash on the left operand:
path p2 = s0 + '/';
p2 += s;
compare_paths(p2, path(s0+'/'+s));
// And again but with a leading slash on the right operand:
path p3 = s0;
s.insert(0, 1, '/');
p3 += s;
compare_paths(p2, path(s0+s));
// And again but with a slash on both operands:
path p4 = s0 + '/';
p4 += s;
compare_paths(p4, path(s0+'/'+s));
}
void
test04()
{
// Concat every test path onto every test path.
for (path p : __gnu_test::test_paths)
{
for (path x : __gnu_test::test_paths)
{
auto prior_native = p.native();
p += x.native();
VERIFY( p.native() == prior_native + x.native() );
path copy(p);
compare_paths( copy, p );
}
}
}
int
main()
{
test01();
test02();
test03();
test04();
}
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