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Re: [PATCH] Kill strcpy and strcat


From: Philip Kendall
Subject: Re: [PATCH] Kill strcpy and strcat
Date: Wed, 7 Nov 2007 13:37:33 +0000
User-agent: Mutt/1.5.12-2006-07-14

On Wed, Nov 07, 2007 at 02:26:40PM +0100, Pawel Kot wrote:
> 
> Maybe somebody could tell me if there is a difference between:
> snprintf(buf, sizeof(buf), "%s", some_string);
> and
> strncpy(buf, some_string, sizeof(buf));
> buf[sizeof(buf) - 1] = 0;

There's the obvious difference that if strlen(some_string) <
sizeof(buf) - 1 then the snprintf() version won't set
buf[sizeof(buf) - 1] to zero, but I can't see how this makes any
difference in any real world use.

strncpy() is presuambly more efficient as well.

Cheers,

Phil

-- 
  Philip Kendall <address@hidden>
  http://www.shadowmagic.org.uk/




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