On Jun 28, 2008, at 10:35 PM, Chris wrote:
NSExpression * ex = [NSExpression expressionForFunction:
[NSExpression expressionForConstantValue:@"BAR"]
selectorName:@"length" arguments:nil];
NSPredicate * predicate = [NSCompoundPredicate
andPredicateWithSubpredicates:[NSArray arrayWithObject: ex]];
[predicate evaluateWithObject:@"FOO" substitutionVariables:nil];
What are you trying to achieve?
ex is not a predicate, so you're only supplying one -- incorrect --
argument to create an AND predicate. It's not clear what role "FOO"
plays in the third line.
mmalc
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