* c-tree.texi (USING_STMT): Document.

From-SVN: r41726

gcc/ChangeLog

+2001-05-01  Nathan Sidwell  <nathan@codesourcery.com>
+
+	* c-tree.texi (USING_STMT): Document.
+
 2001-05-01  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
 
 	* bitmap.c: Change NULL_PTR to NULL or "(rtx*)0".

gcc/c-tree.texi

@@ -1373,6 +1373,7 @@ This predicate holds if the function an overloaded
 @findex TRY_HANDLERS
 @findex HANDLER_PARMS
 @findex HANDLER_BODY
+@findex USING_STMT
 @tindex WHILE_STMT
 @findex WHILE_BODY
 @findex WHILE_COND
@@ -1688,6 +1689,12 @@ the try block.  It must rethrow the exception after executing that code.
 And, if an exception is thrown while the expression is executing,
 @code{terminate} must be called.
 
+@item USING_STMT
+Used to represent a @code{using} directive. The namespace is given by
+@code{USING_STMT_NAMESPACE}, which will be a NAMESPACE_DECL. This node
+is needed inside template functions, to implement using directives
+during instantiation.
+
 @item WHILE_STMT
 
 Used to represent a @code{while} loop.  The @code{WHILE_COND} is the