diff options
| -rw-r--r-- | docs/LanguageExtensions.html | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/docs/LanguageExtensions.html b/docs/LanguageExtensions.html index 1c892fd23a..a8707f3f82 100644 --- a/docs/LanguageExtensions.html +++ b/docs/LanguageExtensions.html @@ -23,6 +23,7 @@ td { <li><a href="#has_include">Include File Checking Macros</a></li> <li><a href="#builtinmacros">Builtin Macros</a></li> <li><a href="#vectors">Vectors and Extended Vectors</a></li> +<li><a href="#checking_language_features">Checks for Standard Language Features</a></li> <li><a href="#blocks">Blocks</a></li> <li><a href="#overloading-in-c">Function Overloading in C</a></li> <li><a href="#builtins">Builtin Functions</a> @@ -194,6 +195,23 @@ href="#__builtin_shufflevector">__builtin_shufflevector</a>.</p> <p>Query for this feature with __has_feature(attribute_ext_vector_type).</p> <!-- ======================================================================= --> +<h2 id="checking_language_features">Checks for Standard Language Features</h2> +<!-- ======================================================================= --> + +<p>The <tt>__has_feature</tt> macro can be used to query if certain standard language features are +enabled. Those features are listed here.</p> + +<h3>C++ exceptions</h3> + +Use <tt>__has_feature(cxx_exceptions)</tt> to determine if C++ exceptions have been enabled. For +example, compiling code with <tt>-fexceptions</tt> enables C++ exceptions. + +<h3>C++ RTTI</h3> + +Use <tt>__has_feature(cxx_rtt)</tt> to determine if C++ RTTI has been enabled. For example, +compiling code with <tt>-fno-rtti</tt> disables the use of RTTI. + +<!-- ======================================================================= --> <h2 id="blocks">Blocks</h2> <!-- ======================================================================= --> |