On Wed, Nov 12, 2008 at 10:20 PM, Graham Cox <[EMAIL PROTECTED]> wrote: > I just added some fairly old C++ lex/bison code to my app, code that has > been in use for a long time elsewhere and works fine. My app is compiling > with much stricter warnings than many of my other projects though, and this > line is throwing a warning: > > > lvalp->val = strtod( --wptr, &wptr ); > > "warning: operation on 'wptr' may be undefined" > > wptr is declared: > > static char* wptr = NULL; > > Can anyone shed any light on what's wrong here? Hopefully the above is > enough to go on.
The order of evaluation of the arguments to a function is undefined so you have a problem where you're taking the address of wptr and you're pre-decrementing it. -- Chris _______________________________________________ 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 [EMAIL PROTECTED]
