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From: lvc@tut.UUCP
Newsgroups: comp.lang.c
Subject: Re: printf and variable length string format (asterisk)
Message-ID: <2158@tut.cis.ohio-state.edu>
Date: Mon, 23-Nov-87 17:50:50 EST
Article-I.D.: tut.2158
Posted: Mon Nov 23 17:50:50 1987
Date-Received: Thu, 26-Nov-87 05:44:45 EST
References: <692@zycad.UUCP>
Organization: Ohio State Computer & Info Science
Lines: 18
Summary: use .*

In article <692@zycad.UUCP>, kjb@zycad.UUCP (Kevin Buchs) writes:
> 
> I want to print out a string whose length I will not know ahead, and which
> is not null terminated.  I thought the following use of the asterisk
> precision delimiter would work:
> 	
> char *a = "hello"; int i;
> for (i=0; i<6; i++) printf("%*s\n", i, a);
> 
>	...

* here is the minimum field length , use .* for the precision.  See
K&R pg 146-147.  For your example you need:

for (i=0; i<6; i++) printf("%.*s\n", i, a);

	Larry Cipriani AT&T Network Systems at
	cbosgd!osu-cis!tut!lvc Ohio State University