Syntax
class Shape {
public:
virtual double area() const = 0;
};Examples
C++ pure virtual functions example
A focused example you can adapt while practising.
class Shape {
public:
virtual double area() const = 0;
};Best practices
- Start with the smallest working example, then adapt it to your project.
- Use the language’s standard library and idioms before introducing extra dependencies.
Runtime & versions
Compiled native applications. Feature availability depends on the language and runtime version used by your project; consult the official reference below.
ISO C++ resources