bug in 'wc -l'

[Thobias Salazar Trevisan]

hi,

I am sending you a patch to solve a 'problem' at the wc program.
When used with -l option (to count the number of lines) the last
line isn't counted.

First of all, I do not know if it is really a bug, because a
newline must end with a '\n' char. But assume a file, that the
last line does not end with a '\n', so the last line does not
exist ?!

Summarizing:
The problem is: if the input does not end with a newline "\n",
this line is not counted. The classic example:

$ echo -n 'Test line' | wc -l
      0

This patch below solve the problem.

PS: coreutils-5.0

HTH,

thobias
-------
echo 133449562074222244746332132269002206986P | dc
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http://thobias.org


--- old_wc.c    2004-02-06 08:39:16.000000000 -0200
+++ wc.c        2004-02-06 09:25:52.000000000 -0200
@@ -276,6 +276,9 @@
            }
          bytes += bytes_read;
        }
+       /* input might not end with a newline */
+       if ((buf[strlen(buf)-1]) != '\n')
+               ++lines;
     }
 #if HAVE_MBRTOWC && (MB_LEN_MAX > 1)
 # define SUPPORT_OLD_MBRTOWC 1