C++ Templates_ Program to Swap Two Numbers Using Function Template - The Crazy Programmer
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The document discusses using C++ function templates to swap two numbers of any data type. It defines a template function "swap" that takes two references of a generic type T. The function swaps the values of the two arguments by using a temporary variable. The document provides an example that uses the swap function to interchange integer and float values. It also links to a video that further explains templates.
C++ Templates_ Program to Swap Two Numbers Using Function Template - The Crazy Programmer
- 1. 3/6/2016 C++Templates:ProgramtoSwapTwoNumbersUsingFunctionTemplate足TheCrazyProgrammer http://www.thecrazyprogrammer.com/2013/11/c足templates足program足to足swap足two足numbers.html 1/4 By Admin | November 22, 2013 3 Comments C++ Templates: Program to Swap Two Numbers Using Function Template What are Templates in C++? Templates help in de ning generic classes and functions and hence allow generic programming. Generic programming is an approach where generic data types are used as parameters and the same piece of code work for various data types. Function templates are used to create family of functions
- 2. 3/6/2016 C++Templates:ProgramtoSwapTwoNumbersUsingFunctionTemplate足TheCrazyProgrammer http://www.thecrazyprogrammer.com/2013/11/c足templates足program足to足swap足two足numbers.html 2/4 with dierent argument types. The format of a function template is shown below: template<class T> return_type function_name (arguments of type T) { . . . . . . . . . . } I have written a program below which will swap two numbers using function templates. #include<iostream> using namespace std; template <class T> void swap(T&a,T&b) //Function Template { T temp=a; a=b; b=temp; } int main() { int x1=4,y1=7; oat x2=4.5,y2=7.5; cout<<Before Swap:; cout<<nx1=<<x1<<ty1=<<y1; cout<<nx2=<<x2<<ty2=<<y2; swap(x1,y1); swap(x2,y2); cout<<nnAfter Swap:; cout<<nx1=<<x1<<ty1=<<y1; cout<<nx2=<<x2<<ty2=<<y2; return 0;
- 3. 3/6/2016 C++Templates:ProgramtoSwapTwoNumbersUsingFunctionTemplate足TheCrazyProgrammer http://www.thecrazyprogrammer.com/2013/11/c足templates足program足to足swap足two足numbers.html 3/4 You May Also Like: } There are so many things that I have missed in this tutorial. In below video templates are explained very nicely. I am sure that after watching this video you will understand templates very easily. Category: Functions 3 thoughts on C++ Templates: Program to Swap Two Numbers Using Function Template C++ Basic Skills: Lesson 27 "Templates" 0:00 / 10:35 Rod Ochoa November 22, 2013 995 1
- 4. 3/6/2016 C++Templates:ProgramtoSwapTwoNumbersUsingFunctionTemplate足TheCrazyProgrammer http://www.thecrazyprogrammer.com/2013/11/c足templates足program足to足swap足two足numbers.html 4/4 Try to do it without T temp Yes this can be done without temp as shown below. a=a+b; b=a-b; a=a-b; without using arithmetic operators as well as temporary variable Neeraj Mishra November 23, 2013 mantu pani February 16, 2014