Minor copy-edits to clang::fallthrough attribute documentation.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156094 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/LanguageExtensions.html b/docs/LanguageExtensions.html
index 0952fa0..1d57007 100644
--- a/docs/LanguageExtensions.html
+++ b/docs/LanguageExtensions.html
@@ -1506,24 +1506,24 @@
<h2 id="non-standard-attributes">Non-standard C++11 Attributes</h2>
<!-- ======================================================================= -->
-<p>Clang supports one non-standard C++11 attribute. It resides in <tt>clang</tt>
-namespace.</p>
+<p>Clang supports one non-standard C++11 attribute. It resides in the
+<tt>clang</tt> attribute namespace.</p>
<!-- ======================================================================= -->
<h3 id="clang__fallthrough">The <tt>clang::fallthrough</tt> attribute</h3>
<!-- ======================================================================= -->
-<p>The <tt>clang::fallthrough</tt> attribute is used along with
-<tt>-Wimplicit-fallthrough</tt> diagnostic to annotate intentional fall-through
-between switch labels. It can only be applied to a null statement placed in a
+<p>The <tt>clang::fallthrough</tt> attribute is used along with the
+<tt>-Wimplicit-fallthrough</tt> argument to annotate intentional fall-through
+between switch labels. It can only be applied to a null statement placed at a
point of execution between any statement and the next switch label. It is common
to mark these places with a specific comment, but this attribute is meant to
replace comments with a more strict annotation, which can be checked by the
compiler. This attribute doesn't change semantics of the code and can be used
-wherever an intended fall-through occurs, but it is designed to mimic
-control-flow statements like <tt>break;</tt> so it can be placed in most places
-where <tt>break;</tt> can, but only if there are no statements on execution path
-between it and the next switch label.</p>
+wherever an intended fall-through occurs. It is designed to mimic
+control-flow statements like <tt>break;</tt>, so it can be placed in most places
+where <tt>break;</tt> can, but only if there are no statements on the execution
+path between it and the next switch label.</p>
<p>Here is an example:</p>
<pre>
// compile with -Wimplicit-fallthrough