On Apr 3, 2009, at 3:44 PM, Quincey Morris wrote:
On Apr 3, 2009, at 15:15, Nate Weaver wrote:
IIRC they're optimized to point to the same memory location (I
wasn't sure, so I tested and confirmed).
I usually do:
NSString * const kConstantNameHere = @"foo";
That's what I've seen in Apple headers (with an extern at the
beginning and no assignment in said headers, of course).
Except that the reason for *that* is to have the names of the
strings in the public API but to keep the content of the strings out
of it, which is presumably not a consideration for the OP.
The other reason for it is to guarantee that kConstantNameHere has the
same address everywhere. If you use a #define, you'll get a different
string object (with its own address) in each framework or executable.
The linker's string optimization only works inside a single linkage
unit.
--
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
