diff options
| author | Richard Smith <richard-llvm@metafoo.co.uk> | 2011-10-15 05:42:01 +0000 |
|---|---|---|
| committer | Richard Smith <richard-llvm@metafoo.co.uk> | 2011-10-15 05:42:01 +0000 |
| commit | 0aa86c0463a881be85fd34e04c7de3379997621d (patch) | |
| tree | d7ca22480268c94ba0531ad35522a00970b932bd | |
| parent | 7fe6208c3fa91f835813bb78236ef5c2bbf81053 (diff) | |
Add -Wc++98-compat warning for deduced 'auto' type specifier.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142057 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | include/clang/Basic/DiagnosticSemaKinds.td | 3 | ||||
| -rw-r--r-- | lib/Sema/SemaType.cpp | 4 | ||||
| -rw-r--r-- | test/SemaCXX/cxx98-compat.cpp | 3 |
3 files changed, 9 insertions, 1 deletions
diff --git a/include/clang/Basic/DiagnosticSemaKinds.td b/include/clang/Basic/DiagnosticSemaKinds.td index 0fbf0cee0a..1fb8fb8b97 100644 --- a/include/clang/Basic/DiagnosticSemaKinds.td +++ b/include/clang/Basic/DiagnosticSemaKinds.td @@ -1083,6 +1083,9 @@ def err_cannot_determine_declared_type_of_overloaded_function : Error< "cannot determine the type of an overloaded function">; // C++11 auto +def warn_cxx98_compat_auto_type_specifier : Warning< + "'auto' type specifier is incompatible with C++98">, + InGroup<CXX98Compat>, DefaultIgnore; def err_auto_variable_cannot_appear_in_own_initializer : Error< "variable %0 declared with 'auto' type cannot appear in its own initializer">; def err_illegal_decl_array_of_auto : Error< diff --git a/lib/Sema/SemaType.cpp b/lib/Sema/SemaType.cpp index 2b563a50a9..d3a39967de 100644 --- a/lib/Sema/SemaType.cpp +++ b/lib/Sema/SemaType.cpp @@ -1851,7 +1851,9 @@ static QualType GetDeclSpecTypeForDeclarator(TypeProcessingState &state, << Error; T = SemaRef.Context.IntTy; D.setInvalidType(true); - } + } else + SemaRef.Diag(D.getDeclSpec().getTypeSpecTypeLoc(), + diag::warn_cxx98_compat_auto_type_specifier); } if (SemaRef.getLangOptions().CPlusPlus && diff --git a/test/SemaCXX/cxx98-compat.cpp b/test/SemaCXX/cxx98-compat.cpp index d4c433e008..927df1f971 100644 --- a/test/SemaCXX/cxx98-compat.cpp +++ b/test/SemaCXX/cxx98-compat.cpp @@ -87,3 +87,6 @@ template<typename T> using AliasTemplate = T; // expected-warning {{alias declar inline namespace N { // expected-warning {{inline namespaces are incompatible with C++98}} } + +auto auto_deduction = 0; // expected-warning {{'auto' type specifier is incompatible with C++98}} +int *p = new auto(0); // expected-warning {{'auto' type specifier is incompatible with C++98}} |