tags:

views:

52

answers:

1
Q: 

Unclear why if statement doesn't work

Can somebody explain why this doesn't work:

int nrSegments=[segment valueForKeyPath:@"iteneryLegs.@count"];
    if (0==nrSegments) {
        [self removeSegment:segment];
    }

but this does?

int nrSegments=[[segment valueForKeyPath:@"iteneryLegs] count];
    if (0==nrSegments) {
        [self removeSegment:segment];
    }
+2  A: 

Because valueForKeyPath:@"iteneryLegs.@count" returns an NSNumber ?

mustISignUp  2010-05-26 15:25:59
So how would the if statement look if nrSegments is a NSNumber?
Peter Tennekes  2010-05-26 18:49:08
NSNumber *nrSegments=[[segment valueForKeyPath:@"iteneryLegs] count];if([nrSegments intValue]==0){
mustISignUp  2010-05-27 08:54:59

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