new macro to check conditions on expression macros

1 files changed, 6 insertions, 1 deletions

diff --git a/llimits.h b/llimits.h
index dd0b978b..bc686a4f 100644
--- a/llimits.h
+++ b/llimits.h
@@ -1,5 +1,5 @@
 /*
-** $Id: llimits.h,v 1.42 2002/03/26 20:46:10 roberto Exp roberto $
+** $Id: llimits.h,v 1.43 2002/04/23 14:59:35 roberto Exp roberto $
 ** Limits, basic types, and some other `installation-dependent' definitions
 ** See Copyright Notice in lua.h
 */
@@ -83,6 +83,11 @@ union L_Umaxalign { LUSER_ALIGNMENT_T u; void *s; long l; };
 #endif
 
 
+#ifndef check_exp
+#define check_exp(c,e)  (e)
+#endif
+
+
 #ifndef UNUSED
 #define UNUSED(x)       ((void)(x))     /* to avoid warnings */
 #endif