On Sun, Sep 13, 2009 at 8:10 PM, slasktrattena...@gmail.com <slasktrattena...@gmail.com> wrote: > On Sun, Sep 13, 2009 at 8:01 PM, Bill Bumgarner <b...@mac.com> wrote: >> On Sep 13, 2009, at 10:59 AM, slasktrattena...@gmail.com wrote: >> I'm updating my code for Snow Leopard and ran into this problem. The >>> >>> app crashes at this line: >>> >>> sprintf(str, "%d", val); >>> >>> where val is a CFIndex. According to the string programming guide here... >>> >>> >>> http://developer.apple.com/mac/library/documentation/Cocoa/Conceptual/Strings/Articles/formatSpecifiers.html >>> >>> ...I need to cast my CFIndex to long and replace the %d format >>> specifier to %ld. I tried that but still got the crash. So I kept >>> trying with all the format specifiers in the book, declaring my >>> variable a NSInteger, unsigned int, etc, but no matter what the app >>> kept crashing. The only that that actually worked was %lx, but then I >>> get the numbers all wrong. It seems that sprintf only accepts 32-bit >>> integers. Is this correct? If so, what's the workaround? I'm compiling >>> for both 10.5 and 10.6. Advice appreciated, thanks. >> >> You are off in the weeds. >> >> There is nothing about a value conversion that could cause a crash. Wrong >> value? Sure. But not a crash. Thus, the formatting string is *not* causing >> a crash. >> >> The problem is almost assuredly that 'str' is pointing to garbage, >> uninitialized or otherwise wrong. >> >> Post the code for how str is created. >> >> b.bum > > Sorry, str is simply created like this: > > char str[10]; > sprintf(str, "%d", val);
Are you positive that val is a nine digit number? If not, then you've got a buffer overrun. This could have been failing in 32-bit as well, but you were running off the end of the buffer by a smaller amount. -- Clark S. Cox III clarkc...@gmail.com _______________________________________________ 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
