Thread: C4789: destination of memory copy is too small - related to pointers

Code:

int tube_mag[6] = {0,0,0,0,0,0};
int *pMagPointer = &tube_mag[5];




void LoadBall() {
	if (tube_mag[6] == 0)	{
	
	pMagPointer = &tube_mag[5];
	tube_mag[6] = *pMagPointer;      //Error this line
	pMagPointer = &tube_mag[4];
	tube_mag[5] = *pMagPointer;
	pMagPointer = &tube_mag[3];
	tube_mag[4] = *pMagPointer;
	pMagPointer = &tube_mag[2];
	tube_mag[3] = *pMagPointer;
	pMagPointer = &tube_mag[1];
	tube_mag[2] = *pMagPointer;

	tube_mag[1] = 1;

	DisplayMenu();
	}

While trying to understand why pointers are actually used and for what, I created a little test program. The above code is supposed to simulate a tube magazine for a tube that can be filled with tennis balls. Basically if a new Ball is loaded, the complete row is being pushed back. The code works as intended, however I get the following error in the line marked:

C4789: destination of memory copy is too small

However the compiler lists the compilation as "successful". Also I did only post the relevant parts of the code (initialization of the pointer and array) and the function they are used in.