Error (std::bad_array_new_length) in a 2d array textbook example (Absolute C++, Savitch)

Here is a textbook example from Absolute C++ by Walter Savitch:

I tried a different version but got an error, so I tried typing out the code exactly:

#include <iostream>  using namespace std;  typedef int* IntArrayPtr;    int main()  {      int d1, d2;      cout << "Enter dimensions (row*col): \n";      cin >> d1, d2;      IntArrayPtr *m = new IntArrayPtr[d1]; //Get me a d1 sized array of pointers      int i,j;      for(i=0; i<d1; i++)          m[i] = new int[d2]; //each element in the array should be an array of size d2      //m is now a d1*d2 array        cout << "Enter " << d1 << " rows of " << d2 << " integers:\n";      for(i=0;i<d1;i++)          for(j=0;j<d2;j++)              cin >> m[i][j];            cout << "Your arry:\n";      for(i=0;i<d1;i++)          {for(j=0;j<d2;j++)              cout << m[i][j] << " ";          cout << endl;          }        for (i = 0; i < d1; i++)          delete m[i]; //delete each pointer      delete[] m; //delete the master pointer        return 0;          }  

And when I tried running the example in the text, I got an error as soon as I entered the dimensions.

Can anyone help me identify the problem? No other error has occurred with an example from this textbook so far.

https://stackoverflow.com/questions/65433008/error-stdbad-array-new-length-in-a-2d-array-textbook-example-absolute-c December 24, 2020 at 09:43AM