Char and strcpy in C

Question

I came across a part of question in which, I am getting an output, but I need a explanation why it is true and does work?

char arr[4]; 
strcpy(arr,\"This is a li         


        

Answer 1

There is no guarantee on the behavior of this piece of code. It's just like: you told me "I'll pick you up at 5:00 p.m." and when you came I would be there(guarantee). But I can't guarantee whether I had grabbed you a cup of coffee or not, because you didn't told me you want one. Maybe I'm very nice and bought two cups of coffee, or maybe I'm a cheapskate and just bought one for myself.