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

Float number, We can combine more than one variable on the same line i.e. ...

We can combine more than one variable on the same line i.e.   float number1,number2,number3; etc Sometimes we want to mix the variable types used on the same line, this could

Write a program that finds the minimum total number of shelv, At a shop of ...

At a shop of marbles, packs of marbles are prepared. Packets are named A, B, C, D, E …….. All packets are kept in a VERTICAL SHELF in random order. Any numbers of packets with thes

C program to print r diagonal triangle, C program to print R diagonal trian...

C program to print R diagonal triangle: #define rows 3 #define cols 3 void main() {                 int i=0,j=0;                 int arr[rows][cols];

Storing street addresses with doubly linked lists, Write a C++ program with...

Write a C++ program with header and source files to store street addresses using the Doubly Linked List ADT. Modify the Node class from Lab Assignment 3 so that it becomes a node i

Which constructor gets called while i create an array of , Which constructo...

Which constructor gets called while I create an array of Fred objects?

Should i call a destructor explicitly on a local variable?, Should I call a...

Should I call a destructor explicitly on a local variable?

C programming assignment, good night i have an assignment that i really nee...

good night i have an assignment that i really need help with. i have to create a struct file with tag name book to have members int book_id char isbn[255]

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