c++copy函数遇见区间重叠的替代方法-memmove

#include <iostream>
#include <vector>
#include <algorithm>
#include<iterator>
#include <cstring>

using namespace std;


int main(){
    int *a=new int[10];
    for(int i=0;i<10;i++)
    {
        a[i]=i;
    }
    memmove(a+6,a+7,3*sizeof(int));
    for(int i=0;i<10;i++){
        cout<<a[i]<<endl;
    }


    return 0;
}

结果：

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