堆分配功能击中墙：EXC BAD ACCESS CODE 1

Question

我正在使用动态堆分配来创建课堂工具来添加学生。程序提示用户/教师输入学生的姓名，并将他们分配给一个数组。

我测试了调用负责分配更大堆数组的while函数的add循环。程序输出按预期添加的学生列表，并可以创建更大的堆数组。

然而，当我尝试添加第11名学生时，我收到此消息THRD 1 EXC_BAD_ACCESS code1。我读到这意味着该程序无法再访问内存块，但我很困惑为什么这会发生在第11名学生？任何调试建议都非常感谢。感谢您的耐心等待，我仍然习惯了C ++

/*
Dynamic Heap Allocation using pointers
 */
#include <iostream>
#include <string>

using namespace std;

void add(string arr[],int& studs,int& counter){
    //copies student names to a bigger array
    studs+=10; //vs passing by value
    string* big_brotha = new string[studs]; // a holder
    for(int i=0;i<counter;i++){
        big_brotha[i]=arr[i];
    }
    delete[] arr;
    arr = big_brotha;
}


int main() {
    int n=5;
    int count=0;
    string name;
    bool cont = true;
    char option;
    string* arrayofpointers = new string[n];
    cout << "enter student names. Enter Q to quit " << endl;
    while (cont){
        cout << "enter student name for seat number " << count << endl;
        cin >> name;
        if (name=="Q"){
            for (int i=0;i<count;i++){
                cout << arrayofpointers[i] << endl;
            }
            break;
        }
        cout << "is the counter less than array size? " <<  (count<n) << endl;
        if (count>=n){ //time to make the array bigger!
            cout << "time to make the array bigger!" << endl;
            add(arrayofpointers,n,count);
            cout << "the array is now this big " << n << endl;
            arrayofpointers[count]=name;


        }
        else{
            arrayofpointers[count]=name; //no longer possible to access memory
        }

        count++;
    }

    return 0;
}