Add a __has_feature macro for generalized initializers, turned off

because we don't support them yet.

llvm-svn: 137027

clang/docs/LanguageExtensions.html

@@ -45,6 +45,7 @@
     <li><a href="#cxx_default_function_template_args">C++0x default template arguments in function templates</a></li>
     <li><a href="#cxx_delegating_constructor">C++0x delegating constructors</a></li>
     <li><a href="#cxx_deleted_functions">C++0x deleted functions</a></li>
+    <li><a href="#cxx_generalized_initializers">C++0x generalized initializers</a></li>
     <li><a href="#cxx_lambdas">C++0x lambdas</a></li>
     <li><a href="#cxx_nullptr">C++0x nullptr</a></li>
     <li><a href="#cxx_override_control">C++0x override control</a></li>
@@ -476,6 +477,13 @@ support for delegating constructors is enabled.</p>
 <tt>__has_extension(cxx_deleted_functions)</tt> to determine if support for
 deleted function definitions (with <tt>= delete</tt>) is enabled.</p>
 
+<h4 id="cxx_generalized_initializers">C++0x generalized initializers</h4>
+
+<p>Use <tt>__has_feature(cxx_generalized_initializers)</tt> to determine if
+support for generalized initializers (using braced lists and
+<tt>std::initializer_list</tt>) is enabled. clang does not currently implement
+this feature.
+
 <h4 id="cxx_lambdas">C++0x lambdas</h4>
 
 <p>Use <tt>__has_feature(cxx_lambdas)</tt> or

clang/lib/Lex/PPMacroExpansion.cpp

@@ -614,6 +614,7 @@ static bool HasFeature(const Preprocessor &PP, const IdentifierInfo *II) {
            .Case("cxx_default_function_template_args", LangOpts.CPlusPlus0x)
            .Case("cxx_delegating_constructors", LangOpts.CPlusPlus0x)
            .Case("cxx_deleted_functions", LangOpts.CPlusPlus0x)
+         //.Case("cxx_generalized_initializers", LangOpts.CPlusPlus0x)
            .Case("cxx_inline_namespaces", LangOpts.CPlusPlus0x)
          //.Case("cxx_lambdas", false)
            .Case("cxx_noexcept", LangOpts.CPlusPlus0x)