C: In what case structure assignment should be avoided in code ?

Question

Can I assign one structure variable of another structure variable of same structure type all the time ?

Answer 1

If structure has pointer or array member,it will lead to dangling pointer so we should avoid use of assignment operator in this case.here an attached image to illustarte how it will lead to dangling pointer problem.

Once you delete string (or free pointer) pointed by any pointer,because both pointer pointing to same string,string will be deleted so we will need to use deep copy.