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Re: strtonum(3) from OpenBSD?
On Tue, Jun 30, 2009 at 09:37:02AM +0100, Roy Marples wrote:
>> Correct use of sscanf() for a single integer is something like:
>> count = sscanf(inbuf, "%i%n", &int_val, &byte_count);
>> if (count != 2 || inbuf[byte_count] != 0)
>> /* Conversion error */
>> I'm not sure that it is possible to detect numeric overflow.
> Using the standard, it's not.
> GNU libc sets ERANGE if the conversion overflows, I see no reason why we
> could not do similar.
Because then our code isn't portable?
David A. Holland
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