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

What is inline function, Inline function: It is a function without prot...

Inline function: It is a function without prototype. The function is defined above main. The function should  be  declared  above  main  function.                  Declaring

Program of cascading, Program of cascading: class vector{          ...

Program of cascading: class vector{                 private :                 int v[3];                   public:                 friend istream & operator >> (

Array of pointers, To write a program to use different levels of array of p...

To write a program to use different levels of array of pointer to pointer & display the output as 1 1 1 2 2 2 3 3 3

C program to copy the contents of a file, C Program to copy the contents of...

C Program to copy the contents of a file: void main()    {   ifstream fin("input.txt");   ofstream fout("output.txt");   char ch;   while (fin)       {

Can copy constructor admit an object of the same class , Can copy construct...

Can copy constructor admit an object of the same class as parameter, rather than reference of the object?

Please help to solve a c program, Padovan String Problem Description A P...

Padovan String Problem Description A Padovan string P(n) for a natural number n is defined as: P(0) = ‘X’ P(1) = ‘Y’ P(2) = ‘Z’ P(n) = P(n-2) + P(n-3), n>2 where + denotes s

Require flowchart, I require a flowchart for push , & pop operation on stac...

I require a flowchart for push , & pop operation on stack using array

Intro to C++ Lab Help, I have a very confusing assignment and I''m struggli...

I have a very confusing assignment and I''m struggling to find the right place to begin or how to break the problem down.

C program for function of count the interest , C Program for FUNCTION OF CO...

C Program for FUNCTION OF COUNT THE INTEREST float si(float,float,float); void main() {           float p=0,r=0,n=0,k=0;           clrscr();           printf("E

Explain control flow, Control Flow The control flow statements are used...

Control Flow The control flow statements are used when it is needed that the flow of the program is to be changed after taking some decision. This control flow statement theref

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