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Re: snprintf() wrong return value for %c with \0 char

From: Mike Frysinger <vapier at gentoo dot org>
To: libc-alpha at sourceware dot org
Cc: Francesco Montorsi <f18m_cpp217828 at yahoo dot it>
Date: Wed, 24 Jan 2007 08:09:27 -0500
Subject: Re: snprintf() wrong return value for %c with \0 char
References: <ep7e1v$2po$1@sea.gmane.org>

On Wednesday 24 January 2007 05:56, Francesco Montorsi wrote:
> Return value of snprintf(): 13

correct

> Now, I'm not sure if the return value of snprintf() is supposed to be 6
> or 13 in this case. I'd say the return value of snprintf() should always
> be the same of that returned by strlen()....

incorrect ...

you're confusing the points at which the string is evaluated as a string ... 
snprintf is writing the given format string based upon the arguments ...

embedded null characters in the format string matter, arguments given via 
output specifiers do not matter
-mike

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