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Asked: 2026-05-24T00:48:51+00:00

I have Question related to nsdate declaration. NSDate *sortDate; @property(nonatomic,retain) NSDate *sortDate; @synthesize sortDate;

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I have Question related to nsdate declaration.

NSDate *sortDate;
@property(nonatomic,retain) NSDate *sortDate;
@synthesize sortDate;
sortDate=[NSDate date];

I assign NSdate field in my class with above Procedure.I successfully assign value to my NSDATE(sortarray).Whaen when i retrieve its value’s App craches with this message.

“malloc double free/non- aligned pointer being freed set a breakpoint in malloc_error_break to debug”

Give excess bad error.Some time it show,

When i remove NSDATE field from my class.App Run successfully.

Any thing wrong regarding declaration?

Any Solution.

Thanks in advance.

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1 Answer

  1. Editorial Team

    The date instance you get is autoreleased and not owned by you. If you assign directly to the ivar you have to take ownership, e.g.:

    sortDate = [[NSDate date] retain];

    It’s usually better though to use the declared property, which takes care of that for you:

    self.sortDate = [NSDate date];

    Don’t forget to relinquish ownership on dealloc, e.g.:

    self.sortDate = nil;

    See the Cocoa memory management rules and the declared properties documentation.

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