Problem Solving with C++ Chapter 4: Procedural Abstraction and Functions That Return a Value

This set of flashcards covers essential concepts from Chapter 4 of Problem Solving with C++, focusing on procedural abstraction, functions, predefined functions, and programming practices.

What does top-down design involve?

It involves developing an algorithm and breaking it down into subtasks, which are further broken down into smaller subtasks.

What are the benefits of using top-down design in programming?

It makes programs easier to understand, change, write, test, debug, and develop collaboratively.

What are predefined functions in C++?

They are built-in functions provided by C++ libraries, such as sqrt() for computing square roots.

How do you call a function in C++?

Using the syntax: Functionname(ArgumentList), where Argument_List is a comma-separated list of arguments.

What is the purpose of including a library in a C++ program?

To make predefined functions available for use within the program.

What is a local variable?

A variable declared within a function that cannot be accessed outside of that function.

What is the black box analogy in programming?

It refers to using a function without needing to understand its internal workings, focusing instead on what it does.

What does procedural abstraction allow programmers to do?

It allows using functions as self-contained modules without knowing the details of their implementation.

What does it mean to overload a function name in C++?

It means providing multiple definitions for the same function name, allowing it to handle different types or numbers of arguments.

What is the primary use of the return statement in a function?

To end the function call and return a value calculated by the function.

Define 'call-by-value' mechanism.

A mechanism where the values of the arguments are copied into the formal parameters for use inside the function.

What is a function declaration?

A statement that defines the function's name, return type, and parameters, allowing the function to be called before its definition.

In C++, what are global constants?

Named constants defined outside any function, accessible from multiple functions within the program.

Why are formal parameters considered local variables?

Because they are declared within the function definition and have a scope limited to that function.

What is the significance of using pseudocode in algorithm design?

Pseudocode simplifies algorithm design by allowing the focus on logic without strict adherence to programming syntax.

What can cause a logical error in a program?

Using incorrect argument order or type can lead to unintended behavior, even if there are no syntax errors.

How do you ensure the safety of variables declared in different scopes?

Understanding that local variables cannot be accessed outside their defined scope helps in avoiding naming conflicts.