Goto statement overview in C - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the goto statement in C?

The goto statement in C is a way to jump directly to another part of the program marked by a label. It helps to change the flow of execution.

beginner

How do you define a label for goto in C?

A label is defined by writing an identifier followed by a colon, like label_name:. The goto statement can jump to this label.

intermediate

Why should goto be used carefully?

Using goto too much can make code hard to read and follow, like a messy map. It can cause bugs and confusion, so it is usually better to use loops and functions.

beginner

Can goto jump outside a function in C?

No, goto can only jump to labels within the same function. It cannot jump between different functions.

beginner

Example: What does this code do?

int x = 0;
goto skip;
x = 5;
skip:
printf("%d", x);

The code jumps over x = 5; and prints 0 because the goto skip; moves execution directly to the label skip:.

What does the goto statement do in C?

A Starts a new function

B Ends the program

C Jumps to a labeled part of the code

D Declares a variable

The goto statement jumps to a label inside the same function.

How do you mark a place to jump to with goto?

A With a function name

B With a label followed by a colon

C With a comment

D With a variable

Labels are identifiers followed by a colon, like label:.

Can goto jump to a label in another function?

A No, only within the same function

B Yes, anywhere in the program

C Only if the functions are nested

D Only if the label is global

goto works only inside the same function.

What is a common problem with using goto too much?

A It causes syntax errors

B It makes the program run slower

C It uses too much memory

D Code becomes hard to read and maintain

Excessive use of goto can make code confusing and messy.

Which of these is a correct label for goto?

A start:

B int start;

C goto start;

D label start

Labels are written as an identifier followed by a colon, like start:.

Explain how the goto statement works and when it should be used.

Think about how <code>goto</code> changes program flow and why it can be risky.

Describe a simple example where goto skips a part of the code.

Imagine skipping a step in a recipe using a shortcut.