Re: [PATCH] Re: sscanf("-1", "%d", &i) fails, returns 0

[Andreas Schwab <schwab@suse.de>]

"Randy.Dunlap" <rddunlap@osdl.org> writes:

|> On Sun, 10 Nov 2002, Henning P. Schmiedehausen wrote:
|> 
|> | "Randy.Dunlap" <rddunlap@osdl.org> writes:
|> |
|> | >+		digit = *str;
|> | >+		if (is_sign && digit == '-')
|> | >+			digit = *(str + 1);
|> |
|> | If signed is not allowed and you get a "-", you're in an error case
|> | again...
|> 
|> Yes, and a 0 value is returned.
|> IOW, asking for an unsigned number (in the format string)
|> and getting "-123" does return 0.

Not in C.  According to the standard scanf is supposed to convert the
value to unsinged and return that.

Andreas.

-- 
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux AG, Deutschherrnstr. 15-19, D-90429 Nürnberg
Key fingerprint = 58CA 54C7 6D53 942B 1756  01D3 44D5 214B 8276 4ED5
"And now for something completely different."