Question

The precondition(s) for the function describe

A) how to call the function.
B) what the function does.
C) what is true after the function is executed.
D) what must be true before the function is executes.

Answer 1

The correct answer is ,the precondition for a function is what must be true before the function is executed and is analogous to the necessary conditions in logical arguments.

Step-by-step explanation:

The precondition for a function refers to D) what must be true before the function is executed. In logical terms, preconditions are similar to the antecedent in a conditional statement, meaning that they are the necessary conditions that must be met for the function to perform correctly. These preconditions are important for understanding the function's requirements and help in predicting a function's behavior.

Having clear preconditions helps with the development and maintenance of reliable software systems because they define the acceptable inputs or states of the system before a function is called.

Take the example of "If you are a bachelor, then you are unmarried." The precondition for the function, if it were to check marital status, would be the status of being a bachelor. This is the necessary and sufficient condition for the function to conclude that the person is unmarried.