From: Karl Heuer <kwzh@gnu.org>
Date: Thu, 26 May 1994 22:30:47 +0000 (+0000)
Subject: (Finsert_file_contents): Check for beginning of file.
X-Git-Tag: emacs-19.34~8158
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=fc81fa9eafe18a1ab14e7b4010087c6f17516fe1;p=emacs.git

(Finsert_file_contents): Check for beginning of file.
---

diff --git a/src/fileio.c b/src/fileio.c
index 79bd39161af..e1131ce8860 100644
--- a/src/fileio.c
+++ b/src/fileio.c
@@ -2712,6 +2712,9 @@ and (2) it puts less data in the undo list.")
 
 	  /* At what file position are we now scanning?  */
 	  curpos = st.st_size - (ZV - same_at_end);
+	  /* If the entire file matches the buffer tail, stop the scan.  */
+	  if (curpos == 0)
+	    break;
 	  /* How much can we scan in the next step?  */
 	  trial = min (curpos, sizeof buffer);
 	  if (lseek (fd, curpos - trial, 0) < 0)