X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~mdw/git/tripe/blobdiff_plain/e533c005b62f3e1016b5fb9a3b6973124480a54b..23df0e5b6d5dfe65beaf6fee394746bfbf574035:/common/util.h

diff --git a/common/util.h b/common/util.h
index 1928c042..acdc0f6e 100644
--- a/common/util.h
+++ b/common/util.h
@@ -37,6 +37,18 @@
   extern "C" {
 #endif
 
+/*----- Macros ------------------------------------------------------------*/
+
+/* --- @IGNORE@ --- *
+ *
+ * Arguments:	@expr@ = an expression whose value is to be ignored
+ *
+ * Use:		Ignores the value of an expression, even if compilers want
+ *		us not to.
+ */
+
+#define IGNORE(expr) do { if (expr) ; } while (0)
+
 /*----- Functions provided ------------------------------------------------*/
 
 /* --- @u_quotify@ --- *