pr0706.cpp

来自「practice c++, it is from the book http:/」· C++ 代码 · 共 43 行

//  Programming with C++, Second Edition, by John R. Hubbard
//  Copyright McGraw-Hill, 2000
//  Problem 7.6 on page 175
//  The maximum in an array of pointers

#include <iostream>
using namespace std;

float* max(float*[],int);
void print(float[],int);
void print(float*[],int);

int main()
{ float a[8] = {44.4, 77.7, 22.2, 88.8, 66.6, 33.3, 99.9, 55.5};
  print(a, 8);
  float* p[8];
  for (int i = 0; i < 8; i++)
		    p[i] = &a[i];  // p[i] points to a[i]
  print(p, 8);
  float* m = max(p, 8);
  cout << m << ", " << *m << endl;
}

float* max(float* p[], int n)
{ float* pmax = p[0];
  for (int i = 1; i < n; i++)
  if (*p[i] > *pmax) pmax = p[i];
    return pmax;
}

void print(float a[], int n)
{ for (int i = 0; i < n; i++)
    cout << a[i] << " ";
  cout << endl;
}

void print(float* a[], int n)
{ for (int i = 0; i < n; i++)
    cout << *a[i] << " ";
  cout << endl;
}