diff --git a/core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/SelectionParseTest.java b/core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/SelectionParseTest.java
index 1e2146b6ee1..01160620e8b 100644
--- a/core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/SelectionParseTest.java
+++ b/core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/SelectionParseTest.java
@@ -293,4 +293,15 @@ public class SelectionParseTest extends SelectionParseBaseTest {
 		int startIndex = code.indexOf( "EColours color"); //$NON-NLS-1$
 		parse( code, startIndex, startIndex + 8 );
 	}
+	
+	public void testBug43021() throws Exception
+	{
+		Writer writer = new StringWriter();
+		writer.write( "extern int johnc(__const char *__restrict __format, ...);\n" ); //$NON-NLS-1$
+		writer.write( "void m() {johnc(\"HI\");}" ); //$NON-NLS-1$
+		String code = writer.toString();
+		int startIndex = code.indexOf( "{johnc") + 1; //$NON-NLS-1$
+		IASTNode node = parse( code, startIndex, startIndex + 5 );
+		assertNotNull( node );
+	}
 }
diff --git a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/parser/ast/complete/CompleteParseASTFactory.java b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/parser/ast/complete/CompleteParseASTFactory.java
index b4eab4c49e2..b432b898b7f 100644
--- a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/parser/ast/complete/CompleteParseASTFactory.java
+++ b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/parser/ast/complete/CompleteParseASTFactory.java
@@ -2376,6 +2376,8 @@ public class CompleteParseASTFactory extends BaseASTFactory implements IASTFacto
 				symbol.addPtrOperator( new TypeInfo.PtrOp( TypeInfo.PtrOp.t_pointer, true, false ));
 			else if( pointerOperator == ASTPointerOperator.VOLATILE_POINTER )
 				symbol.addPtrOperator( new TypeInfo.PtrOp( TypeInfo.PtrOp.t_pointer, false, true));
+			else if( pointerOperator == ASTPointerOperator.RESTRICT_POINTER )
+				symbol.addPtrOperator( new TypeInfo.PtrOp( TypeInfo.PtrOp.t_pointer ));
 //			else
 //				assert false : pointerOperator;
         }