From e578f3813ff7f48663eb4821caee267e3ec47aa8 Mon Sep 17 00:00:00 2001
From: Dmitry Antipov
Date: Tue, 11 Sep 2012 08:22:03 +0400
Subject: Convenient macro to check whether the buffer is live. * buffer.h
 (BUFFER_LIVE_P): New macro. * alloc.c, buffer.c, editfns.c, insdel.c,
 lread.c, marker.c: * minibuf.c, print.c, process.c, window.c, xdisp.c: Use
 it.

---
 src/buffer.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'src/buffer.h')

diff --git a/src/buffer.h b/src/buffer.h
index da40a7ce3d8..d18ef30ea38 100644
--- a/src/buffer.h
+++ b/src/buffer.h
@@ -959,7 +959,10 @@ bset_width_table (struct buffer *b, Lisp_Object val)
   b->INTERNAL_FIELD (width_table) = val;
 }
 
-
+/* Convenient check whether buffer B is live.  */
+
+#define BUFFER_LIVE_P(b) (!NILP (BVAR (b, name)))
+
 /* Chain of all buffers, including killed ones.  */
 
 extern struct buffer *all_buffers;
-- 
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