Introduce the notion of "reserved" identifiers.

The only thing they do is to refuse to bind to the regular
C namespaces (NS_TYPEDEF | NS_STRUCT | NS_LABEL | NS_SYMBOL)
with a warning.

You can mark any identifier you want reserved by just setting
ident->reserved = 1. Sparse won't care.

1 files changed, 2 insertions, 1 deletions

diff --git a/token.h b/token.h
index d4defd7..af96121 100644
--- a/token.h
+++ b/token.h
@@ -54,7 +54,8 @@ struct ident {
 	struct ident *next;	/* Hash chain of identifiers */
 	struct symbol *symbols;	/* Pointer to semantic meaning list */
 	unsigned char len;	/* Length of identifier name */
-	unsigned char tainted;
+	unsigned char tainted:1,
+	              reserved:1;
 	char name[];		/* Actual identifier */
 };