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

Illustrate the example of constructor, A Constructive Example Consider ...

A Constructive Example Consider an example , to model a user-defined data type for  strings. The object simulates a character array ( string ) using a character pointer and an

Explain looping statements, Looping Statements The statements usually u...

Looping Statements The statements usually used for looping are for, do-while, while. The goto statement can be used for looping, but its use is generally avoided as it leads to

Define the double data type of c language, Define the Double Data Type of c...

Define the Double Data Type of c Language? The double is used to define BIG floating point numbers and it reserves twice the storage for the number. When the accuracy provided

Program for manage the tasks of a robot, Consider a group of n robots, numb...

Consider a group of n robots, numbered R2D1 through R2Dn, and m tasks, numbered 1 through m. Tasks can be different and robots are specialized, hence a given robot can only perform

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];

Write the recursive bisection root finding function, Rewrite the recursive...

Rewrite the recursive bisection root finding function from lecture to be iterative (using a while loop). The function declaration should be root = bisectIter(f,a,b,tol). The input

C program for total & average in the array , C Program for TOTAL  & AVERA...

C Program for TOTAL  & AVERAGE IN THE ARRAY  #include stdio.h> #include conio.h> #include string.h> void main() {           int i=0,n[100],limit=0,a=0;

Define automatic storage classes - computer programming, Define Automatic s...

Define Automatic storage classes - computer programming? The Variables declared within function bodies are automatic by default and automatic variables are declared inside a fu

Store first n natural no in a file - c program, Program is to store first n...

Program is to store first n natural no in a file: Write a program to  store first n natural no in a file void main()     {     fstream file;     file.open("studen

FlipFlaps fltk project, The project is to design and write a C++11/FLTKgame...

The project is to design and write a C++11/FLTKgame program with a graphical user interface.The game is based on "pancake sorting," as described at http://en.wikipedia.org/wiki/P

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