This is the mail archive of the
gdb-patches@sourceware.org
mailing list for the GDB project.
Re: Patch for isdigit/isalpha/etc. macro arguments
DJ Delorie <dj@redhat.com> writes:
>> The value of '\377' is implementation-defined.
>
> Not in the context of fgetc or <ctype.h> (the places where ambiguity
The context does not matter. The value of an expression is independent of
its context.
> In the case of casts from char* strings, the programmer should:
>
> isalpha((int)(unsigned char)(*s))
That's my very point.
> The cast to int may be optional.
It is.
Andreas.
--
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
PGP key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."