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[solved]: Accessing structure member NSDate in NSTableView
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[solved]: Accessing structure member NSDate in NSTableView


  • Subject: [solved]: Accessing structure member NSDate in NSTableView
  • From: Gilles Celli <email@hidden>
  • Date: Fri, 10 Nov 2006 15:10:24 +0100

Hi,

Stéphane was right, I had to retain the NSDate object, now it works! No more crash :-)

k2700_data[index]. acqDate=[[NSDate dateWithSomeMethodFromSomewhereWhichReturnsAnAutoreleasedObject] retain];

Thanks,

Gilles Celli


On Nov 9, 2006, at 6:29 PM, Stephane wrote:


On Nov 9, 2006, at 5:59 PM, Gilles Celli wrote:

Hello,

My problem: How to access the structure member NSDate *acqDate without copying it to a new structure ?
My code crashes NSTableView !!!



My KeithleyMultimeter class (for performance reason I don't want to use NSArray but structures instead, this was discussed here several weeks ago):


@interface KeithleyMultimeter : NSObject {

struct keithley_struct {

		NSDate *acqDate;

		double channel[MAX_NBR_OF_CHANNELS];

} k2700_data[MAX_ACQ_DATA_PER_DAY];

[...]

Its' mainly crashing when accessing the structure member NSDate....

Why ?

Could it be possible that you do:

k2700_data[index]. acqDate=[NSDate dateWithSomeMethodFromSomewhereWhichReturnsAnAutoreleasedObject];

instead of:

k2700_data[index]. acqDate=[[NSDate dateWithSomeMethodFromSomewhereWhichReturnsAnAutoreleasedObject] retain];

?


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References: 
 >Accessing structure member NSDate in NSTableView (From: Gilles Celli <email@hidden>)
 >Re: Accessing structure member NSDate in NSTableView (From: Stephane <email@hidden>)

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