CODEWITHSUNDEEP
xcodemacos
DenTek
DenTek

Reputation: 37

What's the difference between CFRelease and CFSafeRelease?

What's the difference between CFRelease and CFSafeRelease? Unfortunately I cannot find anything in the provided documentation.

Thanks!

Upvotes: 2

Views: 389

Answers (1)

Rob Napier
Rob Napier

Reputation: 299325

There is no standard thing called CFSafeRelease. You probably have a macro or function in your local code that defines something like:

#define CFSafeRelease(x) if (x) { CFRelease(x); x = NULL; }

Or something like that. This is a pretty common macro (though it's usually given a name like MYSafeRelease or something else to keep it from looking like it's builtin).

Of course, occasionally you'll find it defined this way:

#define CFSafeRelease( cfobj ) if ( cfobj != NULL ) CFRelease( cfobj );

Which certainly is not a "safe release" since it leaves a dangling pointer....

Upvotes: 1

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