diff options
| author | Eli Friedman <eli.friedman@gmail.com> | 2011-04-30 19:24:24 +0000 |
|---|---|---|
| committer | Eli Friedman <eli.friedman@gmail.com> | 2011-04-30 19:24:24 +0000 |
| commit | d3d77cd138f8e830f6547b6f83fcd5721ccf5f5d (patch) | |
| tree | 95de603f0f1e8d7cf5b30cd36b2e15dbd21153c3 | |
| parent | 277d1e1efd4d450667e7856550c02eed19aa081c (diff) | |
PR9792: Make sure to use the right definition of wchar_t when the default
wchar_t is an unsigned type.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@130620 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/AST/ASTContext.cpp | 2 | ||||
| -rw-r--r-- | test/SemaCXX/short-wchar-sign.cpp | 6 |
2 files changed, 7 insertions, 1 deletions
diff --git a/lib/AST/ASTContext.cpp b/lib/AST/ASTContext.cpp index 13c40f7ca1..de8c26bd70 100644 --- a/lib/AST/ASTContext.cpp +++ b/lib/AST/ASTContext.cpp @@ -375,7 +375,7 @@ void ASTContext::InitBuiltinTypes() { InitBuiltinType(UnsignedInt128Ty, BuiltinType::UInt128); if (LangOpts.CPlusPlus) { // C++ 3.9.1p5 - if (!LangOpts.ShortWChar) + if (TargetInfo::isTypeSigned(Target.getWCharType())) InitBuiltinType(WCharTy, BuiltinType::WChar_S); else // -fshort-wchar makes wchar_t be unsigned. InitBuiltinType(WCharTy, BuiltinType::WChar_U); diff --git a/test/SemaCXX/short-wchar-sign.cpp b/test/SemaCXX/short-wchar-sign.cpp new file mode 100644 index 0000000000..9a177c04b1 --- /dev/null +++ b/test/SemaCXX/short-wchar-sign.cpp @@ -0,0 +1,6 @@ +// RUN: %clang_cc1 -triple i386-mingw32 -fsyntax-only -pedantic -verify %s +// RUN: %clang_cc1 -fshort-wchar -fsyntax-only -pedantic -verify %s +// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fsyntax-only -pedantic -verify %s + +// Check that short wchar_t is unsigned, and that regular wchar_t is not. +int test[(wchar_t(-1)<wchar_t(0)) == (sizeof(wchar_t) == 4) ?1:-1]; |