Add the clang library to the repo (with some of my changes, too).

1 files changed, 49 insertions, 0 deletions

diff --git a/clang/test/Lexer/has_extension_cxx.cpp b/clang/test/Lexer/has_extension_cxx.cpp
new file mode 100644
index 0000000..6ffeebd
--- /dev/null
+++ b/clang/test/Lexer/has_extension_cxx.cpp
@@ -0,0 +1,49 @@
+// RUN: %clang_cc1 -E %s -o - | FileCheck %s
+
+// CHECK: c_static_assert
+#if __has_extension(c_static_assert)
+int c_static_assert();
+#endif
+
+// CHECK: c_generic_selections
+#if __has_extension(c_generic_selections)
+int c_generic_selections();
+#endif
+
+// CHECK: has_deleted_functions
+#if __has_extension(cxx_deleted_functions)
+int has_deleted_functions();
+#endif
+
+// CHECK: has_inline_namespaces
+#if __has_extension(cxx_inline_namespaces)
+int has_inline_namespaces();
+#endif
+
+// CHECK: has_override_control
+#if __has_extension(cxx_override_control)
+int has_override_control();
+#endif
+
+// CHECK: has_range_for
+#if __has_extension(cxx_range_for)
+int has_range_for();
+#endif
+
+// CHECK: has_reference_qualified_functions
+#if __has_extension(cxx_reference_qualified_functions)
+int has_reference_qualified_functions();
+#endif
+
+// CHECK: has_rvalue_references
+#if __has_extension(cxx_rvalue_references)
+int has_rvalue_references();
+#endif
+
+#if __has_extension(cxx_local_type_template_args)
+int has_local_type_template_args();
+#else
+int no_local_type_template_args();
+#endif
+
+// CHECK: has_local_type_template_args