Pass reference : Function Parameters « Function « C / ANSI-C

Pass reference


#include <stdio.h>

int change(int* pnumber);   /* Function prototype               */

void main()
{
   int number = 20;         
   int* pnumber = &number;  
   int result = 0;          

   result = change(pnumber);
   printf("\nIn main, result = %d\tnumber = %d", result, number);
}

int change(int* pnumber)
{
   *pnumber *= 2;
   printf("\n In function change, *pnumber = %d\n", *pnumber );
   return *pnumber;
}

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Pass reference : Function Parameters « Function « C / ANSI-C

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