X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/0fb669f9d648dfdd7a39478a6b658511455ae966..c1d19e10c32844d17122b473840752003521d21b:/src/gram.h?ds=sidebyside

diff --git a/src/gram.h b/src/gram.h
index a5dfc1e9..3b742d56 100644
--- a/src/gram.h
+++ b/src/gram.h
@@ -1,6 +1,6 @@
 /* Data definitions for internal representation of Bison's input.
 
-   Copyright (C) 1984, 1986, 1989, 1992, 2001, 2002, 2003, 2004
+   Copyright (C) 1984, 1986, 1989, 1992, 2001, 2002, 2003, 2004, 2005, 2006
    Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
@@ -115,6 +115,7 @@ extern int ntokens;
 extern int nvars;
 
 typedef int item_number;
+#define ITEM_NUMBER_MAX INT_MAX
 extern item_number *ritem;
 extern unsigned int nritems;
 
@@ -138,8 +139,15 @@ item_number_as_symbol_number (item_number i)
   return i;
 }
 
+static inline bool
+item_number_is_symbol_number (item_number i)
+{
+  return i >= 0;
+}
+
 /* Rule numbers.  */
 typedef int rule_number;
+#define RULE_NUMBER_MAX INT_MAX
 extern rule_number nrules;
 
 static inline item_number
@@ -154,6 +162,11 @@ item_number_as_rule_number (item_number i)
   return -1 - i;
 }
 
+static inline bool
+item_number_is_rule_number (item_number i)
+{
+  return i < 0;
+}
 
 /*--------.
 | Rules.  |