diff options
| author | Hans Wennborg <hans@hanshq.net> | 2013-05-03 09:10:16 +0000 |
|---|---|---|
| committer | Hans Wennborg <hans@hanshq.net> | 2013-05-03 09:10:16 +0000 |
| commit | 6f464bb8d316b95bf60efcdb2d21803659d3aa1b (patch) | |
| tree | e4d554844ad553b9d747996604c909adc6666eea /test | |
| parent | f5ebf9bf1df10ac15ba32a4b24dfe171b7848c58 (diff) | |
Support __wchar_t in -fms-extensions and -fms-compatibility modes.
MSVC provides __wchar_t, either as an alias for the built-in wchar_t
type, or as a separate type depending on language (C vs C++) and flags
(-fno-wchar).
In -fms-extensions, Clang will simply accept __wchar_t as an alias for
whatever type is used for wide character literals. In -fms-compatibility, we
try to mimic MSVC's behavior by always making __wchar_t a builtin type.
This fixes PR15815.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181004 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/Lexer/ms-compatibility-wchar.c | 12 | ||||
| -rw-r--r-- | test/Lexer/ms-extensions-wchar.c | 12 |
2 files changed, 24 insertions, 0 deletions
diff --git a/test/Lexer/ms-compatibility-wchar.c b/test/Lexer/ms-compatibility-wchar.c new file mode 100644 index 0000000000..966292eeb1 --- /dev/null +++ b/test/Lexer/ms-compatibility-wchar.c @@ -0,0 +1,12 @@ +// RUN: %clang_cc1 -fsyntax-only -verify -fms-compatibility -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-compatibility -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; // 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'}} diff --git a/test/Lexer/ms-extensions-wchar.c b/test/Lexer/ms-extensions-wchar.c new file mode 100644 index 0000000000..9321c3a914 --- /dev/null +++ b/test/Lexer/ms-extensions-wchar.c @@ -0,0 +1,12 @@ +// 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(); // No error. + +// __wchar_t is the same as the target's integer type for wide chars. +unsigned short g(); // No error. |