How to write a function template, C/C++ Programming

Assignment Help:

How to write a function template

A function template should be written at the beginning of the program in the global area, or you may place it into a header file. All function templates begin with a template declaration.

The syntax is :

  • The C++ keyword template
  • A left angle bracket ( < )
  • A comma separates a list of generic types, each one. A generic type having of two parts

1. the keyword class ( this usage of class has nothing to do with the key word class used to make user-defined type.)

2. a variable that shows some generic type, and will be used whenever this type requires to be written in the function definition. Typically the name T is used, but any valid C++ name will do.

  • A right angle bracket ( > ).

e.g.

template < class T>

T max(char x, char y)

                 {

                                return ( x > y) ? x : y ;

                 }

 

                void main()

                {

                  cout << max( 1,2) << endl;

                  cout << max( 5.62,3.48) << endl;

                  cout << max('A','a') << endl;

                  cout << max( 4,3) << endl;

                }

 

The output is :

                                                2

                                                5.62

                                                a

                                                6

 


Related Discussions:- How to write a function template

Described container class?explain types of container class, A container cla...

A container class is a class which is used to hold objects in external storage and memory. A container class work as a generic holder. A container class contains a predefined behav

Write a program that illustrate union declaration, Write a Program that ill...

Write a Program that illustrate union declaration? A C program encloses the following union declaration: union id { char color[12]; int size; } shirt, blouse; At this

Declaration of variables in cpp, Declaration of Variables: Variables ar...

Declaration of Variables: Variables are declared as follows: int a; float b;   Assigning value to variables: int a = 100; Declaring and assigning is called ini

Square maze, SquareMaze The SquareMaze class should be declared and defined...

SquareMaze The SquareMaze class should be declared and defined in maze.h and maze.cpp, respectively. Each SquareMaze object will represent a randomly-generated square maze and its

Develop opencv tracking, Help me evaluate suitable OpenCV filters to get an...

Help me evaluate suitable OpenCV filters to get an inital working tracking algorithm. In this case it's objects moving on water (sea) and since I have very limited OpenCV knowledge

Virtual ATM, #questio A charitable organization wants to design a special A...

#questio A charitable organization wants to design a special ATM machine to be used by needy people. The association supplies the needy person with a pin number to be able to use

Default value functions, Default Value Functions,  When declaring a functio...

Default Value Functions,  When declaring a function we can specify a default value for each parameter. This value will be used if that parameter is left blank when calling to the f

Write a c program to input numbes in table format, Write a C program to inp...

Write a C program to input 16 numbers and print them out in a table format of 4 wide by 4 deep. E.g.   4    5    5    7   8    9    10    11   12    13    14    15   16    17

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd