I'd like to print what's behind an &myVariable. I tried NSLog(&myIntVar); but it won't work.
From stackoverflow
-
The argument to NSLog needs to be an NSString, so you want
NSLog(@"%p", &myIntVar);smorgan : Good point! I've updated the answer accordingly :) -
Try:
NSLog(@"%p", &myIntVar);or
NSLog(@"%lx", (long)&myIntVar);The first version uses the pointer-specific print format, which assumes that the passed parameter is a pointer, but internally treats it as a long.
The second version takes the address, then casts it to a long integer. This is necessary for portability on 64-bit platforms, because without the "
l" format qualifier it would assume that the supplied value is an integer, typically only 32-bits long.Alnitak : Apple specifically mention the latter method themselves: http://developer.apple.com/documentation/Cocoa/Conceptual/Strings/Articles/formatSpecifiers.html#//apple_ref/doc/uid/TP40004265-SW1
0 comments:
Post a Comment