Vendor import of clang release_34 branch r197841 (effectively, 3.4 RC3):

https://llvm.org/svn/llvm-project/cfe/branches/release_34@197841

1 files changed, 18 insertions, 0 deletions

diff --git a/test/Sema/ms-wchar.c b/test/Sema/ms-wchar.c
new file mode 100644
index 0000000..febaf28
--- /dev/null
+++ b/test/Sema/ms-wchar.c
@@ -0,0 +1,18 @@
+// RUN: %clang_cc1 -fsyntax-only -verify -fms-extensions -triple i386-pc-win32 %s
+
+// C++ mode with -fno-wchar works the same as C mode for wchar_t.
+// RUN: %clang_cc1 -x c++ -fno-wchar -fsyntax-only -verify -fms-extensions -triple i386-pc-win32 %s
+
+wchar_t f(); // expected-error{{unknown type name 'wchar_t'}}
+
+// __wchar_t is available as an MS extension.
+__wchar_t g = L'a'; // expected-note {{previous}}
+
+// __wchar_t is a distinct type, separate from the target's integer type for wide chars.
+unsigned short g; // expected-error {{redefinition of 'g' with a different type: 'unsigned short' vs '__wchar_t'}}
+
+// The type of a wide string literal is actually not __wchar_t.
+__wchar_t s[] = L"Hello world!"; // expected-error-re {{array initializer must be an initializer list$}}
+
+// Do not suggest initializing with a string here, because it would not work.
+__wchar_t t[] = 1; // expected-error-re {{array initializer must be an initializer list$}}