---
title: "What is pure virtual function?"  
description: "What is pure virtual function?"  
author: "Anonymous User"  
published: 2012-05-12  
updated: 2020-09-20  
canonical: https://www.mindstick.com/interview/1443/what-is-pure-virtual-function  
category: "c#"  
tags: ["c#"]  
reading_time: 1 minute  

---

# What is pure virtual function?

class Base {\
public:\
void f1(); // not virtual\
virtual void f2(); // virtual, not pure\
virtual void f3() = 0; // pure virtual\
};

## Answers

### Answer by Anonymous User

class Base {\
public:\
void f1(); // not virtual\
virtual void f2(); // virtual, not pure\
virtual void f3() = 0; // pure virtual\
};


---

Original Source: https://www.mindstick.com/interview/1443/what-is-pure-virtual-function

Copyright © MindStick Software Pvt. Ltd. This Markdown version is provided for developers, AI systems, and offline reading.