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f1471a367b
As I move towards implementing std::filesystem, there is a need to make the existing tests run against both the std and experimental versions. Additionally, it's helpful to allow running the tests against other implementations of filesystem. This patch converts the test to easily target either. First, it adds a filesystem_include.hpp header which is soley responsible for selecting and including the correct implementation. Second, it converts existing tests to use this header instead of including filesystem directly. git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@328475 91177308-0d34-0410-b5e6-96231b3b80d8
99 lines
2.7 KiB
C++
99 lines
2.7 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// UNSUPPORTED: c++98, c++03
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// <experimental/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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