From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <1362019787.512ec5cbd4024@www.imp.polymtl.ca>
Date: Wed, 27 Feb 2013 21:49:47 -0500
From: Paul Patience <paul-a.patience@polymtl.ca>
To: 9fans@9fans.net
MIME-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1
User-Agent: Internet Messaging Program (IMP) 3.2.3
Content-Transfer-Encoding: quoted-printable
Subject: [9fans] Bug in print(2) g verb
Topicbox-Message-UUID: 20dfa77c-ead8-11e9-9d60-3106f5b1d025

I already sent this mail, but it seems that 9fans didn't
receive it.

The g verb in print(2) does not work properly. The precision
flag (%.ng) is supposed to print n significant figures, but
it prints n+1 significant figures. This change fixes this
behaviour.

diff -r d6b623d4cac0 sys/src/libc/fmt/fltfmt.c
--- a/sys/src/libc/fmt/fltfmt.c	Sat Feb 23 14:05:51 2013 +0100
+++ b/sys/src/libc/fmt/fltfmt.c	Wed Feb 27 15:59:34 2013 -0500
@@ -187,6 +187,8 @@
 	 * c3 digits of trailing '0'
 	 * c4 digits after '.'
 	 */
+	if(chr =3D=3D 'g') /* Significant figures. */
+		prec--;
 	c1 =3D 0;
 	c2 =3D prec + 1;
 	c3 =3D 0;