What is embedded C - Interactive Quiz & Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to declare a variable in embedded C.

Embedded C

int [1] = 10;

Drag options to blanks, or click blank then click option'

Acount

B10

Cint

Dmain

Attempts:

3 left

💡 Hint

Common Mistakes

Using a number as a variable name.

Using a keyword as a variable name.

The variable name should be a valid identifier like count.

2fill in blank

medium

Complete the code to include the standard input-output header in embedded C.

Embedded C

#include [1]

Drag options to blanks, or click blank then click option'

A"stdlib.h"

B"stdio.h"

C<stdio.h>

D<string.h>

Attempts:

3 left

💡 Hint

Common Mistakes

Using quotes instead of angle brackets for standard headers.

Including the wrong header file.

The standard way to include the input-output header is #include <stdio.h>.

3fill in blank

hard

Fix the error in the embedded C function declaration.

Embedded C

void [1]() { }

Drag options to blanks, or click blank then click option'

AMain

Bmain

Cint

Dvoid

Attempts:

3 left

💡 Hint

Common Mistakes

Using uppercase 'Main' instead of 'main'.

Using a return type as the function name.

The entry point function in embedded C is main with lowercase 'm'.

4fill in blank

hard

Fill both blanks to create a simple infinite loop in embedded C.

Embedded C

while ([1]) {
    [2];
}

Drag options to blanks, or click blank then click option'

A1

B0

Ccontinue

Dbreak

Attempts:

3 left

💡 Hint

Common Mistakes

Using 0 as the condition which stops the loop.

Using break inside the loop which exits it.

An infinite loop uses while(1) and continue; to keep running.

5fill in blank

hard

Fill all three blanks to define and call a function that returns the sum of two integers.

Embedded C

int [1](int a, int b) {
    return a [2] b;
}

int result = [3](5, 3);

Drag options to blanks, or click blank then click option'

Aadd

B+

Dsum

Attempts:

3 left

💡 Hint

Common Mistakes

Using different names for function definition and call.

Using wrong operator for addition.

The function name is add, the operator is +, and the call uses add.