resolve sizeof ambiguity for C++

1 files changed, 40 insertions, 0 deletions

diff --git a/lrparser/org.eclipse.cdt.core.lrparser/grammar/cpp/CPPSizeofExpressionParser.g b/lrparser/org.eclipse.cdt.core.lrparser/grammar/cpp/CPPSizeofExpressionParser.g
new file mode 100644
index 00000000000..ea977476189
--- /dev/null
+++ b/lrparser/org.eclipse.cdt.core.lrparser/grammar/cpp/CPPSizeofExpressionParser.g
@@ -0,0 +1,40 @@
+-----------------------------------------------------------------------------------
+-- Copyright (c) 2006, 2008 IBM Corporation and others.
+-- All rights reserved. This program and the accompanying materials
+-- are made available under the terms of the Eclipse Public License v1.0
+-- which accompanies this distribution, and is available at
+-- http://www.eclipse.org/legal/epl-v10.html
+--
+-- Contributors:
+--     IBM Corporation - initial API and implementation
+-----------------------------------------------------------------------------------
+
+%options la=2
+%options package=org.eclipse.cdt.internal.core.dom.lrparser.cpp
+%options template=btParserTemplateD.g
+
+
+$Import
+	CPPGrammar.g
+$DropRules
+
+	unary_expression
+	    ::= 'sizeof' '(' type_id ')'
+	    
+	postfix_expression
+        ::= 'typeid' '(' type_id ')'
+    
+$End
+
+$Start
+    no_sizeof_type_name_start
+$End
+
+$Rules 
+
+	no_sizeof_type_name_start
+	    ::= expression
+	      | ERROR_TOKEN
+	          /. $Build  consumeExpressionProblem();  $EndBuild ./
+          
+$End
\ No newline at end of file