Arguments passed by pointer - C++ Function

C++ examples for Function:Function Parameter

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Description

Arguments passed by pointer

Demo Code

#include <iostream>
using namespace std;
int main()/*  www . j  a  v  a 2  s  .c  om*/
{
   void centimize(double*);    //prototype
   double var = 10.0;          //var has value of 10 inches
   cout << "var = " << var << " inches" << endl;
   centimize(&var);            //change var to centimeters
   cout << "var = " << var << " centimeters" << endl;
   return 0;
}
void centimize(double* ptrd)
{
   *ptrd *= 2.54;              //*ptrd is the same as var
}

Result


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