test08.cpp

赵应时遥感上机指导envi操作

#include <iostream.h>

void Swap(int* px, int* py);

void main()
{
	int a = 5, b = 6;
	int *pa = &a;
	int *pb = &b;

	void (*pfn)(int*, int*);

	cout << "a = " << a << ", "<< "b = " << b << endl;

	pfn = Swap;
	(*pfn)(pa, pb);

	cout << "a = " << a << ", "<< "b = " << b << endl;
}

void Swap(int* px, int* py)
{
	int temp = 0;

	temp = *px;
	*px = *py;
	*py = temp;
}