#include <iostream>
#include<stdlib.h>
using namespace std;

double  max(double *x,int n)//求数组中值得最大值
{
    int i;double max;
    max = x[0];
    for(i = 1;i<n;i++)
        if(x[i]>max)
            max = x[i];
    return max;
}
void fmin(double (*pointer)(double *x,int n),double *x)//传进来函数以及x值、
{
    cout<<"success!"<<endl;
}
int main()
{
    double *x;int n = 3;
    x = (double *)malloc(sizeof(double)*n);
    x[0] = 0;;
    x[1] = 1;x[2] = 3;
    double (*pointer)(double *x,int n);
    pointer = max;
    x[0] = pointer(x,n);

    cout << "Hello world!"<<x[0] << endl;
    fmin(pointer,x);//实现了feval的功能
    return 0;
}