What name does the auto-generated ivar take when I just declare a property in XCode 4.5 onwards?

Question

Earlier I was on XCode 4.2 for a long time on Snow Leopard for a long time. I have made a straight jump to Mountain Lion with XCode 4.5 on with iOS 6 SDK and ARC.

A

Answer 1

The automatically generated @synthesize statement uses instance variables prepended with an underscore:

@synthesize abc = _abc;

But an explicit @synthesize statement without instance variable

@synthesize abc;

is still equivalent to

@synthesize abc = abc;

for compatibility with older Xcode versions.