Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
I dont undesratand in which situations is more convenient to pass references as functions parameters:
- (void)exportXMLToString:(NSMutableString **)aString
Can I just pass the string by value and have it back when the method finishes to execute ?
Thanks
It more convenient to pass references when you do not want an extra copy of String,
Extra copy means more space, If you want to read/append the String< It is better if you do not create a new new one.
You easily do this by passing String value (create a new one) but that’s not very efficient. (you want two glasses space to store 1/2 glass of water 🙂 )