C++ Programming

Function Templates in C++

Function template is new look of Fucntion overloading. A function template can work with different data types at once but, a single normal function can only work with one set of data types.

Normally, if you need to perform identical operations on two or more types of data, you use function overloading to create two functions with the required function declaration.

Syntax:

Function template starts with the keyword template followed by template parameter/s inside < > which is followed by function declaration.

template <class T>
T someFunction(T arg)
{

... .. ...

}

Where , T is a template argument that accepts different data types (int, float etc), and class is a keyword.

You can also use keyword typename instead of class. Like template <typename T>

Programming Example of Function Templates:

#include <stdio.h>
#include<conio.h>
#include <string.h>
#include<iostream>
using namespace std;
// template function
template <typename check> // you can also write template <class check>
check Large(check n1, check n2)
{
return (n1 > n2) ? n1 : n2;
}
int main()
{
int i1, i2;
float f1, f2;
char c1, c2;
cout << "Enter two integers:\n";
cin >> i1 >> i2;
cout << Large(i1, i2) <<" is larger." << endl;
cout << "\nEnter two floating-point numbers:\n";
cin >> f1 >> f2;
cout << Large(f1, f2) <<" is larger." << endl;
cout << "\nEnter two characters:\n";
cin >> c1 >> c2;
cout << Large(c1, c2) << " has larger ASCII value.";
return 0;
}

Declaring and Initializing Local Variable in C

Declaring and Initializing Global Variable in C Language

Printf Function In C Language

Sacnf Function In C Language

for Loop in C Language

While Loop in C Language

Do While Loop in C Language

Switch Case Statement IN C

IF -Else Statement IN C

Break Statement IN C /C++

User Define Function IN C /C++

Cout/Cin Function IN C /C++

Array IN C /C++

Two Dimensional Array IN C /C++

String In IN C /C++

Pointer In IN C /C++

Const and volatile keyword IN C /C++

Class and Object in C++

Function Over Loading in C++

Character Array In C++

Constructor in C++

Operator overloading in C++

Function Templates in C++

ATM Sample Project In Simple C Language

Find Area of Shape Using Function In C++