Orthography fixes for new castNode() macro.

Clean up hastily-composed comment.  Normalize whitespace.

Erik Rijkers and myself

diff --git a/src/include/nodes/nodes.h b/src/include/nodes/nodes.h
index f7fd8ec6bec2b6dd5ec7a9ee2fac1afc13bdde21..d3fdf55219b9c5be9c597a51b9eff5c8962cfd89 100644 (file)
--- a/src/include/nodes/nodes.h
+++ b/src/include/nodes/nodes.h
@@ -543,23 +543,23 @@ extern PGDLLIMPORT Node *newNodeMacroHolder;
 #define IsA(nodeptr,_type_)            (nodeTag(nodeptr) == T_##_type_)
 
 /*
- * castNode(type, ptr) casts ptr to type and, if cassert is enabled, verifies
- * that the the c actually has the appropriate type (using it's nodeTag()).
+ * castNode(type, ptr) casts ptr to "type *", and if assertions are enabled,
+ * verifies that the node has the appropriate type (using its nodeTag()).
  *
  * Use an inline function when assertions are enabled, to avoid multiple
  * evaluations of the ptr argument (which could e.g. be a function call).
  */
 #ifdef USE_ASSERT_CHECKING
-static inline Node*
-castNodeImpl(enum NodeTag type, void *ptr)
+static inline Node *
+castNodeImpl(NodeTag type, void *ptr)
 {
        Assert(ptr == NULL || nodeTag(ptr) == type);
-       return ptr;
+       return (Node *) ptr;
 }
 #define castNode(_type_, nodeptr) ((_type_ *) castNodeImpl(T_##_type_, nodeptr))
 #else
-#define castNode(_type_,nodeptr)  ((_type_ *)(nodeptr))
-#endif
+#define castNode(_type_, nodeptr) ((_type_ *) (nodeptr))
+#endif   /* USE_ASSERT_CHECKING */
 
 
 /* ----------------------------------------------------------------