Chapter 3: Problem 8

When a function is executing, what happens when the end of the function’s block is reached?

Short Answer

Expert verified

Answer: When the end of a function's block is reached during the execution, it means that all the statements and operations inside the function have been executed. At this point, the function concludes its execution. If the function is designed to return a value, it will provide the output to the calling part of the code. If the function does not have a return statement or is designed to return nothing, it will simply terminate without providing any output. The control flow of the program returns to the point where the function was called, and subsequent statements in the main program or parent function are executed.

Step by step solution

Understanding Functions and Blocks

Functions are reusable pieces of code that perform specific tasks, receive input parameters, and can return values when called. Functions are defined by a function name, input parameters, and a block of code that executes the actual task. The function's block refers to the code enclosed within the function's definition, which is usually represented by curly braces {} or indentation in some programming languages like Python.

Reaching the End of a Function's Block

When the end of a function's block is reached during the execution, it means that all the statements and operations inside the function have been executed. At this point, the function concludes its execution and behaves in the following way: 1. If the function is designed to return a value or result, it will provide the output to the calling part of the code. 2. If the function does not have a return statement or is designed to return nothing (void), it will simply terminate without providing any output or result. 3. The control flow of the program returns to the point where the function was called, and subsequent statements (if any) in the main program or parent function are executed.

Example

To illustrate this concept, let's consider a simple example of a function written in Python: ```python def add_numbers(a, b): sum = a + b return sum result = add_numbers(2, 3) print(result) ``` In this example, the `add_numbers` function takes two numbers as input parameters and returns their sum. When the end of the function's block is reached (after executing the `return` statement), the output value (5 in this case) is provided to the calling code (assigned to the variable `result`), and the subsequent statement (`print(result)`) is executed, displaying the result.

Unlock Step-by-Step Solutions & Ace Your Exams!

Full Textbook Solutions
Get detailed explanations and key concepts
Unlimited Al creation
Al flashcards, explanations, exams and more...
Ads-free access
To over 500 millions flashcards
Money-back guarantee
We refund you if you fail your exam.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

Recommended explanations on Computer Science Textbooks

View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

When a function is executing, what happens when the end of the function’s block is reached?

Short Answer

Step by step solution

Understanding Functions and Blocks

Reaching the End of a Function's Block

Example

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Computer Science Textbooks

Data Structures

Problem Solving Techniques

Game Design in Computer Science

Algorithms in Computer Science

Computer Organisation and Architecture

Data Representation in Computer Science

Study anywhere. Anytime. Across all devices.