What is a templated function?

Function templates are special functions that can operate with generic types. This allows us to create a function template whose functionality can be adapted to more than one type or class without repeating the entire code for each type. In C++ this can be achieved using template parameters.

How do you call a function in a template?

A function template starts with the keyword template followed by template parameter(s) inside <> which is followed by the function definition. In the above code, T is a template argument that accepts different data types ( int , float , etc.), and typename is a keyword.

Can virtual functions be templated?

virtual member function can be used in a class template. It is easy for compiler to construct vtable.

What is function template with example?

Function templates are special functions that can operate with generic types. A template parameter is a special kind of parameter that can be used to pass a type as argument: just like regular function parameters can be used to pass values to a function, template parameters allow to pass also types to a function.

What is the difference between normal function and template function?

What is the difference between normal function and template function? Explanation: As a template feature allows you to write generic programs. therefore a template function works with any type of data whereas normal function works with the specific types mentioned while writing a program.

Can a non virtual function be overridden?

You cannot override a non-virtual or static method. The overridden base method must be virtual , abstract , or override . An override declaration cannot change the accessibility of the virtual method. Both the override method and the virtual method must have the same access level modifier.

What is a pure virtual function?

A pure virtual function or pure virtual method is a virtual function that is required to be implemented by a derived class if the derived class is not abstract. Classes containing pure virtual methods are termed “abstract” and they cannot be instantiated directly.

What is another name of full specialization?

Explanation: explicit specialization is another name of full specialization.

Can a function be part of a templated class?

It is also possible to have a templated class that has a member function that is itself a template, separate from the class template. For instance, because it suggests that the template is entirely the class template and not a function template at all.

How are function templates distinct from each other?

Specializations of different function templates are always distinct from each other even if they have the same type. Two function templates with the same return type and the same parameter list are distinct and can be distinguished with explicit template argument list.

What are the types of names in a template?

In template definitions, there are three types of names. Locally declared names, including the name of the template itself and any names declared inside the template definition. Names from the enclosing scope outside the template definition. Names that depend in some way on the template arguments, referred to as dependent names.

How to declare function templates with type parameters?

The format for declaring function templates with type parameters is: template function_declaration; template function_declaration; The only difference between both prototypes is the use of either the keyword class or the keyword typename.