Learn and Master C Programming - Let's Implement a Variadic Function in C - Technique #1

Learn and Master C Programming - Let's Implement a Variadic Function in C - Technique #1

Assessment

Interactive Video

Information Technology (IT), Architecture

University

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

The video tutorial demonstrates how to create a variadic function in C using Visual Studio. It covers setting up a new project, implementing a sum function that accepts a variable number of arguments, and using macros like VA_LIST, VA_START, and VA_ARG to handle these arguments. The tutorial also includes testing the function with different inputs to ensure it works as expected.

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7 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in setting up a new project in Visual Studio for implementing a variadic function?

Open an existing project

Choose a Python template

Select a Java template

Select the Visual C132 template

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a variadic function in C?

A function that returns multiple values

A function that takes a fixed number of arguments

A function that takes a variable number of arguments

A function that does not take any arguments

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which macro is used to define a variable argument list in C?

va_arg

va_list

va_start

va_end

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of the va_start macro?

To initialize a variable argument list

To read an argument from the list

To define a variable argument list

To end the use of a variable argument list

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which macro is used to clean up resources allocated by va_start?

va_end

va_cleanup

va_list

va_arg

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the expected output when summing the numbers 1, 2, 3, and 4 using the implemented variadic function?

9

10

11

12

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If the count is set to 2, what will the variadic function sum when given the numbers 1, 2, 3, and 4?

6

3

10

7

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