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, 17 insertions, 0 deletions

diff --git a/libcxx/test/support/test_macros.h b/libcxx/test/support/test_macros.h
index 037edbcb989..597c85f2f2c 100644
--- a/libcxx/test/support/test_macros.h
+++ b/libcxx/test/support/test_macros.h
@@ -93,4 +93,21 @@
 #define LIBCPP_STATIC_ASSERT(...) ((void)0)
 #endif
 
+#define ASSERT_NOEXCEPT(...) \
+    static_assert(noexcept(__VA_ARGS__), "Operation must be noexcept")
+
+#define ASSERT_NOT_NOEXCEPT(...) \
+    static_assert(!noexcept(__VA_ARGS__), "Operation must NOT be noexcept")
+
+namespace test_macros_detail {
+template <class T, class U>
+struct is_same { enum { value = 0};} ;
+template <class T>
+struct is_same<T, T> { enum {value = 1}; };
+} // namespace test_macros_detail
+
+#define ASSERT_SAME_TYPE(...) \
+    static_assert(test_macros_detail::is_same<__VA_ARGS__>::value, \
+                 "Types differ uexpectedly")
+
 #endif // SUPPORT_TEST_MACROS_HPP