What is the recommended way of accessing pointer structure members inside
a block function?
Consider the following code:
obj->width = 320;
obj->height = 240;
dispatch_async(dispatch_get_main_queue(), ^{
printf("WIDTH: %d HEIGHT: %d\n", obj->width, obj->height);
});
obj->width = 640;
obj->height = 480;
I *always* want the block function to use the variable values at the
time of the *declaration* of the block function, not at the time of
its execution, i.e. obj->width and ->height should always be 320 and 240,
respectively, in the block function above.
What is the recommended way of doing this? Should I just assign them
to temporary variables whose values are never changed, e.g.
obj->width = 320;
obj->height = 240;
tmpwidth = obj->width;
tmpheight = obj->height;
dispatch_async(dispatch_get_main_queue(), ^{
printf("WIDTH: %d HEIGHT: %d\n", tmpwidth, tmpheight);
});
obj->width = 640;
obj->height = 480;
Or is there a nicer solution? I'm asking because the temporary variable
solution can become quite ugly if there are many variables...
--
Best regards,
Andreas Falkenhahn mailto:andr...@falkenhahn.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:
https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com
This email sent to arch...@mail-archive.com
