C ++程序使用引用调用按循环顺序交换数字
cyclicSwapping()通过按引用调用将三个数字传递给函数，可以按循环顺序交换三个数字。此函数以循环方式交换数字。
使用引用调用以循环顺序交换数字的程序如下：
示例
#include<iostream>
using namespace std;
void cyclicSwapping(int *x, int *y, int *z) {
int temp;
temp = *y;
*y = *x;
*x = *z;
*z = temp;
}
int main() {
int x, y, z;
cout << "Enter the values of 3 numbers: "<<endl;
cin >> x >> y >> z;
cout << "Number values before cyclic swapping..." << endl;
cout << "x = "<< x <<endl;
cout << "y = "<< y <<endl;
cout << "z = "<< z <<endl;
cyclicSwapping(&x, &y, &z);
cout << "Number values after cyclic swapping..." << endl;
cout << "x = "<< x <<endl;
cout << "y = "<< y <<endl;
cout << "z = "<< z <<endl;
return 0;
}输出结果
上面程序的输出如下-
Enter the values of 3 numbers: 2 5 7 Number values before cyclic swapping... x = 2 y = 5 z = 7 Number values after cyclic swapping... x = 7 y = 2 z = 5
在上面的程序中，该函数cyclicSwapping()使用按引用调用按循环顺序交换三个数字。该函数使用变量temp来执行此操作。为此的代码片段如下-
void cyclicSwapping(int *x, int *y, int *z) {
int temp;
temp = *y;
*y = *x;
*x = *z;
*z = temp;
}在该功能中main()，这三个数字的值由用户提供。然后在交换它们之前显示这些值。cyclicSwapping()调用该函数交换数字，然后在交换数字后显示值。这在下面给出-
cout << "Enter the values of 3 numbers: "<<endl; cin >> x >> y >> z; cout << "Number values before cyclic swapping..." << endl; cout << "x = "<< x <<endl; cout << "y = "<< y <<endl; cout << "z = "<< z <<endl; cyclicSwapping(&x, &y, &z); cout << "Number values after cyclic swapping..." << endl; cout << "x = "<< x <<endl; cout << "y = "<< y <<endl; cout << "z = "<< z <<endl;