Question

Hi to all am used following line code in my xml parsing class it works but giving me warning as “warning: incompatible Objective-C types assigning ‘struct NSString *’, expected ‘struct NSMutableString *'”

Can Anybody tell me about how to resolve this warning.

NSMutableString *currentElementValue = [currentElementValue stringByTrimmingCharactersInSet: [NSCharacterSet whitespaceAndNewlineCharacterSet]];

Thanks …

Answer 1

-stringByTrimmingCharactersInSet returns immutable string object (NSString), if you want to get mutable NSMutableString you need to make extra step to create it:

NSMutableString *currentElementValue = [NSMutableString stringWithString:
                      [currentElementValue stringByTrimmingCharactersInSet:
                             [NSCharacterSet whitespaceAndNewlineCharacterSet]]];