list: add list_for_each_rev_off macro

[ccan] / ccan / mem / mem.h

diff --git a/ccan/mem/mem.h b/ccan/mem/mem.h
index 771d05273bc08518df0bf044c0029842d3eb0ce0..dcb44b86c59779c0990b47c72ff037b6b67daea4 100644 (file)
--- a/ccan/mem/mem.h
+++ b/ccan/mem/mem.h
@@ -11,4 +11,8 @@ void *memmem(const void *haystack, size_t haystacklen,
             const void *needle, size_t needlelen);
 #endif
 
+#if !HAVE_MEMRCHR
+void *memrchr(const void *s, int c, size_t n);
+#endif
+
 #endif /* CCAN_MEM_H */