From: Mark Wooding <mdw@distorted.org.uk>
Date: Sun, 30 Aug 2015 09:58:38 +0000 (+0100)
Subject: lib/sod.h: Arrange that `SOD_XCHAIN' returns `void *'.
X-Git-Url: https://git.distorted.org.uk/~mdw/sod/commitdiff_plain/664b395170172c9541bb1ea1b87780a8d200fc19

lib/sod.h: Arrange that `SOD_XCHAIN' returns `void *'.
---

diff --git a/lib/sod.h b/lib/sod.h
index af34d5d..efac06b 100644
--- a/lib/sod.h
+++ b/lib/sod.h
@@ -76,14 +76,15 @@ struct sod_chain {
  * Arguments:	@chead@ = nickname of target chain's head
  *		@obj@ = pointer to an instance chain
  *
- * Returns:	Pointer to target chain, as a @char *@.
+ * Returns:	Pointer to target chain, as a @void *@.
  *
  * Use:		Utility for implementing cross-chain upcasts.  It's probably
  *		not that clever to use this macro directly; it's used to make
  *		the automatically-generated upcast macros more palatable.
  */
 
-#define SOD_XCHAIN(chead, obj) ((char *)(obj) + (obj)->_vt->_off_##chead)
+#define SOD_XCHAIN(chead, obj)						\
+  ((void *)((char *)(obj) + (obj)->_vt->_off_##chead))
 
 /* --- @SOD_OFFSETDIFF@ --- *
  *