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Rekna · 06-20-2005, 10:56 AM

Is it possible to pass a pointer in C++ by reference without just using a double pointer?

I have some code that should work but the refrence portion of it does not seem to be working.

Here is a function similar to what i want to do without all the details.

Code:

void foo(int *&a)
{
   int* b=new int[10];

   //loop some number of times
         //Do some copy operation from b to a
         
         swap(a,b);

   delete[] b;
}

When this code exits a should contain the values, unfortunatly right now this is only true if the loop executes an even number of times.

06-20-2005, 10:56 AM	#1 (permalink)
Rekna Junkie	[C++] passing pointers by reference? Is it possible to pass a pointer in C++ by reference without just using a double pointer? I have some code that should work but the refrence portion of it does not seem to be working. Here is a function similar to what i want to do without all the details. Code: void foo(int &a) { int b=new int[10]; //loop some number of times //Do some copy operation from b to a swap(a,b); delete[] b; } When this code exits a should contain the values, unfortunatly right now this is only true if the loop executes an even number of times.