Declaring a structure variable creates an instance of that structure:
str_emp_data str_emp1, str_emp2 // Two structure // instances
When you assign a structure to another structure, the whole structure is copied and a second copy of the structure data exists:
str_emp1 = str_emp2
The assignment copies the whole structure from one structure variable to the other. Each variable is a separate instance of the structure str_emp_data.
If the structures have different definitions, you cannot assign one to another, even if they have the same set of variable definitions.
For example, this assignment is not allowed:
str_emp str_person1
str_cust str_person2
str_person2 = str_person1 // Not allowed
For information about passing structures as function arguments, see “Passing arguments to functions and events”.
