What is a template specialization in C++?
The act of creating a new definition of a function, class, or member of a class from a template declaration and one or more template arguments is called template instantiation. The definition created from a template instantiation is called a specialization.
What is the syntax of class template in C++?
template class Number { private: T num; public: Number(T n) : num(n) {} T getNum() { return num; } }; Notice that the variable num , the constructor argument n , and the function getNum() are of type T , or have a return type T . That means that they can be of any type.
What is the syntax of template?
C++ Function Template Syntax templateret-type func-name(parameter list) { //body of the function } Here, type is a placeholder name for a data type used by the function. It is used within the function definition. The class keyword is used to specify a generic type in a template declaration.
What is function template specialization?
With a function template, you can define special behavior for a specific type by providing an explicit specialization (override) of the function template for that type. For example: template<> void MySwap(double a, double b); This declaration enables you to define a different function for double variables.
What is the syntax for explicit class specialization?
4. What is the syntax to use explicit class specialization? Explanation: The class specialization is creation of explicit specialization of a generic class. We have to use template<> constructor for this to work.
Which keyword can be used to create a template?
Which keyword is used for the template? Explanation: C++ uses template reserved keyword for defining templates.
Which among the following is the proper syntax for the template class?
Which among the following is the proper syntax for the template class? Explanation: The syntax must start with keyword template, case sensitive. Then it should include the typename and a variable to denote it. Then whenever that variable is used, it replaces it with the data type needed.
How do you write a template function in C++?
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.
What is class template in C++ Mcq?
1) Template is a feature of C++ that allows us to write one code for different data types. 2) We can write one function that can be used for all data types including user defined types.
Which among the following is proper syntax for class given below?
12. Which among the following is proper syntax for class given below? Explanation: The syntax in option void A::disp(){ } is correct. We use scope resolution to represent the member function of a class and to write its definition.
Which of the following best defines the syntax for template function?
3. Which of the following best defines the syntax for template function? Explanation: Both A or B is the syntax for template function. Explanation: Templates are abstract recipe for producing a concrete code, and it is used for Both A and B options.