c++ - free(): invalid pointer error in C++

Question

Heyo，所以当我在Linux服务器上运行/编译程序时，出现了此错误消息。老实说，我不知道错误是什么。我有大约一个小时的时间来修复我的代码，因此对我需要纠正的问题有个好主意。谢谢!

这是我当前的代码:

    #include <iostream>
    #include "Car.h"
    using namespace std;

    void problemOne(int arraySize) {
    int numbers[arraySize];
    cout << "Enter next number" << endl;
    for (int i = 0; i < arraySize; ++i) {
    cin >> numbers[i];
    }
    int *p = numbers;

for (int i = 0; i < arraySize; i++) {
    cout << *p;
    p++;

}

}

for (int i = 0; i < arraySize; i++) {
    cout << "Enter next number" << endl;
    cin >> *numbers;
    numbers++;

}

for (int i = 0; i < arraySize; i++) {
    cout << *numbers;
    numbers++;

}
delete[] numbers;

}

Car *p = new Car[arraySize];

for (int i = 0; i < arraySize; i++) {
    string color;
    string model;
    int mile;
    cout << "enter the model of the car" << " ";
    cin >> model;
    cout << "enter color of the car" << " ";
    cin >> color;
    cout << "enter the mileage of the car" << " ";
    cin >> mile;

    *p = Car(model, color, mile);


}

for (int i = 0; i < arraySize; i++) {
    cout << p->getModel() << " " << p->getColor() << " " << p->getMileage() << endl;
    p++;
    }
   }

  int main(int argc, char* argv[]) {
  problemOne(atoi(argv[1]));
  problemTwo(atoi(argv[2]));
  problemThree(atoi(argv[3]));
  return 0;
 }

Answer 1

由于您没有从numbers获得new[]，因此无法将其传递给delete[]。

顺便说一下，在编译时不知道int numbers[arraySize];的arraySize是无效的Standard C++，它是编译器扩展。因此，请注意它的作用和不能保证的作用。