From 9ca5df90615aa3c6b60e1bc8f03db6cae98e816c Mon Sep 17 00:00:00 2001
From: Bo Yang <struggleyb.nku@gmail.com>
Date: Thu, 6 May 2010 21:52:27 -0700
Subject: Add a macro DIFF_QUEUE_CLEAR.

Refactor the diff_queue_struct code, this macro help
to reset the structure.

Signed-off-by: Bo Yang <struggleyb.nku@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 diffcore.h | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'diffcore.h')

diff --git a/diffcore.h b/diffcore.h
index fcd00bf27a..5d05deaf68 100644
--- a/diffcore.h
+++ b/diffcore.h
@@ -92,6 +92,11 @@ struct diff_queue_struct {
 	int alloc;
 	int nr;
 };
+#define DIFF_QUEUE_CLEAR(q) \
+	do { \
+		(q)->queue = NULL; \
+		(q)->nr = (q)->alloc = 0; \
+	} while(0);
 
 extern struct diff_queue_struct diff_queued_diff;
 extern struct diff_filepair *diff_queue(struct diff_queue_struct *,
-- 
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