From a6a447fc58a01598682f0914f978d0a3c1cfc4dc Mon Sep 17 00:00:00 2001
From: Jim Meyering <jim@meyering.net>
Date: Tue, 22 May 2007 14:25:19 +0200
Subject: cut: diagnose a range starting with 0 (-f 0-2) as invalid, and give a
 better diagnostic for a field-number/offset of 0. * NEWS: Mention the fix. *
 src/cut.c (ADD_RANGE_PAIR): Add an explicit check for 0. Based on a patch
 from James Youngman. * tests/misc/cut: Add tests for the above.

---
 src/cut.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'src')

diff --git a/src/cut.c b/src/cut.c
index ab14abcb2..e89460e1b 100644
--- a/src/cut.c
+++ b/src/cut.c
@@ -57,6 +57,8 @@
 #define ADD_RANGE_PAIR(rp, low, high)			\
   do							\
     {							\
+      if (low == 0 || high == 0)			\
+	FATAL_ERROR (_("fields and positions are numbered from 1")); \
       if (n_rp >= n_rp_allocated)			\
 	{						\
 	  (rp) = X2NREALLOC (rp, &n_rp_allocated);	\
-- 
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