Add Filesystem TS -- Complete

Add the completed std::experimental::filesystem implementation and tests.
The implementation supports C++11 or newer.

The TS is built as part of 'libc++experimental.a'. Users of the TS need to
manually link this library. Building and testing the TS can be disabled using
the CMake option '-DLIBCXX_ENABLE_FILESYSTEM=OFF'.

Currently 'libc++experimental.a' is not installed by default. To turn on the
installation of the library use '-DLIBCXX_INSTALL_EXPERIMENTAL_LIBRARY=ON'.

llvm-svn: 273034

1 files changed, 69 insertions, 0 deletions

diff --git a/libcxx/test/std/experimental/filesystem/class.path/path.nonmember/path.io.unicode_bug.pass.cpp b/libcxx/test/std/experimental/filesystem/class.path/path.nonmember/path.io.unicode_bug.pass.cpp
new file mode 100644
index 00000000000..3a9b48b2669
--- /dev/null
+++ b/libcxx/test/std/experimental/filesystem/class.path/path.nonmember/path.io.unicode_bug.pass.cpp
@@ -0,0 +1,69 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++98, c++03
+
+// <experimental/filesystem>
+
+// class path
+
+// template <class charT, class traits>
+// basic_ostream<charT, traits>&
+// operator<<(basic_ostream<charT, traits>& os, const path& p);
+//
+// template <class charT, class traits>
+// basic_istream<charT, traits>&
+// operator>>(basic_istream<charT, traits>& is, path& p)
+//
+
+// TODO(EricWF) This test fails because "std::quoted" fails to compile
+// for char16_t and char32_t types. Combine with path.io.pass.cpp when this
+// passes.
+// XFAIL: *
+
+#include <experimental/filesystem>
+#include <type_traits>
+#include <sstream>
+#include <cassert>
+
+#include "test_macros.h"
+#include "test_iterators.h"
+#include "count_new.hpp"
+#include "filesystem_test_helper.hpp"
+
+MultiStringType InStr =  MKSTR("abcdefg/\"hijklmnop\"/qrstuvwxyz/123456789");
+MultiStringType OutStr = MKSTR("\"abcdefg/\\\"hijklmnop\\\"/qrstuvwxyz/123456789\"");
+
+template <class CharT>
+void doIOTest() {
+  using namespace fs;
+  using Ptr = const CharT*;
+  using StrStream = std::basic_stringstream<CharT>;
+  const char* const InCStr = InStr;
+  const Ptr E = OutStr;
+  const path p((const char*)InStr);
+  StrStream ss;
+  { // test output
+    auto& ret = (ss << p);
+    assert(ss.str() == E);
+    assert(&ret == &ss);
+  }
+  { // test input
+    path p_in;
+    auto& ret = ss >> p_in;
+    assert(p_in.native() == (const char*)InStr);
+    assert(&ret == &ss);
+  }
+}
+
+
+int main() {
+  doIOTest<char16_t>();
+  doIOTest<char32_t>();
+}