Switch sequence comparisons to handle 32-bit sequence number wrap.

[free-sw/xcb/libxcb] / src / xcbint.h

diff --git a/src/xcbint.h b/src/xcbint.h
index a6d92aa..9048e9d 100644 (file)
--- a/src/xcbint.h
+++ b/src/xcbint.h
@@ -43,6 +43,8 @@ enum workarounds {
 
 #define XCB_PAD(i) (-(i) & 3)
 
+#define XCB_SEQUENCE_COMPARE(a,op,b)   ((int) ((a) - (b)) op 0)
+
 /* xcb_list.c */
 
 typedef void (*XCBListFreeFunc)(void *);