Re: [PATCH] mailsplit and mailinfo: gracefully handle NUL characters

[David Kastrup <dak@xxxxxxx>]

"Brian Foster" <brian.foster@xxxxxxxxxxxxxxx> writes:

>  I'd tend to write this in terms of pointers,
>  something along the lines (untested):
>
> 	char	*p, *endp;
>
> 	assert(1 <= size);
> 	p    = buf;
> 	endp = p + (size-1);
> 	while (p < endp) {
> 		if ((c = getc(in)) == EOF || (*p++ = c) == '\n')
> 			break;
> 	}
> 	*p = '\0';
>
> 	return p - buf;

Leave optimization to the compiler.  Using pointer arithmetic more often
than not screws up loop optimization and strength reduction.

-- 
David Kastrup

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