bitmap

[shotjase]

i have here this constructor used 2 display a bitmap

void bitmap::display() const
{
     for (int r = 0; r < numrows; r++)
     {
         for (int c = 0; c < numcols; c++)
         {
             if (grid[r][c] == 0)
             cout << " " ;
             
             else cout << "*";
         }
         cout << endl;
             
          
     }
     
}

i have here this invert function which is meant to make the 0's into 1's and the * into " " but it is not working proply can ne1 help me

void bitmap::invert()
{
     for (int r = 0; r < numrows; r++)
     {
         for (int c = 0; c < numcols; c++)
         {
             if (grid[r][c] = 1)
             {
             grid[r][c] = 0;
             cout << "*";
             }
             else{
             grid[r][c] = 1;
            cout << " ";
             }
         }
     }
}

[Prabakar]

Its a simple mistake.
if (grid[r][c] = 1)

= is an assinment operator. == is the relational operator

The code is just fine

[shotjase]

i did that but the invert still doesnt work it displays, but the *'s and ' 's are all really far apart

[Prabakar]

I dont have much code to deal with, besides the constructor displays a '*' if mat element is 1 & the invert function does the same, even though it changes the matrix. Upload more code

[Salem]

Why does invert() also display the result?
Shouldn't you just call display() when you're done?

Each function does ONE job properly.