On Mar 8, 2010, at 3:54 PM, Clark Cox wrote:
> For types smaller than int, there is no need to explicitly cast; the
> standard guarantees that such values are converted to int (or unsigned
> int) implicitly. In fact, the 'h' and 'hh' modifiers are completely
> redundant and are ignored when passed to printf-like functions
... unless you're printing signed variables using %x, for one.
% cat test.c
#include <stdio.h>
int main() {
short x = -1;
printf("hx 0x%hx\n", x);
printf("x 0x%x\n", x);
return 0;
}
% cc test.c
% ./a.out
hx 0xffff
x 0xffffffff
(Hint: Implicit promotion to int, and sign extension.)
--
Greg Parker gpar...@apple.com Runtime Wrangler
_______________________________________________
Cocoa-dev mailing list (Cocoa-dev@lists.apple.com)
Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com
This email sent to arch...@mail-archive.com
