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https://github.com/llvm-mirror/libcxx.git
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7c3769df62
to reflect the new license. These used slightly different spellings that defeated my regular expressions. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@351648 91177308-0d34-0410-b5e6-96231b3b80d8
98 lines
2.7 KiB
C++
98 lines
2.7 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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// UNSUPPORTED: c++98, c++03
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// <filesystem>
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// class path
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// template <class charT, class traits>
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// basic_ostream<charT, traits>&
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// operator<<(basic_ostream<charT, traits>& os, const path& p);
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//
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// template <class charT, class traits>
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// basic_istream<charT, traits>&
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// operator>>(basic_istream<charT, traits>& is, path& p)
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//
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#include "filesystem_include.hpp"
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#include <type_traits>
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#include <sstream>
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#include <cassert>
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#include <iostream>
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#include "test_macros.h"
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#include "test_iterators.h"
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#include "count_new.hpp"
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#include "filesystem_test_helper.hpp"
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MultiStringType InStr = MKSTR("abcdefg/\"hijklmnop\"/qrstuvwxyz/123456789");
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MultiStringType OutStr = MKSTR("\"abcdefg/\\\"hijklmnop\\\"/qrstuvwxyz/123456789\"");
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template <class CharT>
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void doIOTest() {
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using namespace fs;
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using Ptr = const CharT*;
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using StrStream = std::basic_stringstream<CharT>;
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const Ptr E = OutStr;
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const path p((const char*)InStr);
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StrStream ss;
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{ // test output
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auto& ret = (ss << p);
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assert(ss.str() == E);
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assert(&ret == &ss);
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}
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{ // test input
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path p_in;
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auto& ret = ss >> p_in;
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assert(p_in.native() == (const char*)InStr);
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assert(&ret == &ss);
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}
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}
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namespace impl {
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using namespace fs;
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template <class Stream, class Tp, class = decltype(std::declval<Stream&>() << std::declval<Tp&>())>
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std::true_type is_ostreamable_imp(int);
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template <class Stream, class Tp>
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std::false_type is_ostreamable_imp(long);
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template <class Stream, class Tp, class = decltype(std::declval<Stream&>() >> std::declval<Tp&>())>
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std::true_type is_istreamable_imp(int);
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template <class Stream, class Tp>
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std::false_type is_istreamable_imp(long);
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} // namespace impl
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template <class Stream, class Tp>
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struct is_ostreamable : decltype(impl::is_ostreamable_imp<Stream, Tp>(0)) {};
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template <class Stream, class Tp>
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struct is_istreamable : decltype(impl::is_istreamable_imp<Stream, Tp>(0)) {};
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void test_LWG2989() {
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static_assert(!is_ostreamable<decltype(std::cout), std::wstring>::value, "");
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static_assert(!is_ostreamable<decltype(std::wcout), std::string>::value, "");
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static_assert(!is_istreamable<decltype(std::cin), std::wstring>::value, "");
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static_assert(!is_istreamable<decltype(std::wcin), std::string>::value, "");
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}
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int main() {
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doIOTest<char>();
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doIOTest<wchar_t>();
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//doIOTest<char16_t>();
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//doIOTest<char32_t>();
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test_LWG2989();
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}
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