Thread: Reading values into an array

Hey guys

I am getting an error that says:

\main.cpp no match for 'operator>>' in 'std::cin >> *((+(((unsigned int)i) * 80u)) + brd)'

All I am trying to do is read the elements into the 2d array. Is it saying I cannot
use cin to do this?

The below is the part of my proram which is the only part that has the error.
I have marked the erorr line.

Code:

void move ( const int brd[][ 20 ] )
{
   int i, j;
   int rowValue;
   int colValue;

   std::cout << "Enter number of rows to move: ";
   std::cin >> rowValue;
   std::cout << "Enter nmmber of columns to move: ";
   std::cin >> colValue;

   for ( i = 0; i < rowValue; i++ )
   {
      for ( j = 0; j < colValue; j++ )
         std::cout << "Enter value at position [ " << i << "][ " << j << "]: ";
         std::cin >> brd[ i ][ j ];  // ERROR IS HERE
   }
}

You need an opening bracket and an ending bracket for multi-line for loops.

I think the main problem is that you are trying to read into a const int. Try removing the const qualifier first, though I am not sure why the error message reads that way.

Code:

void move ( const int brd[][ 20 ] )

You're assigning values to an array that's declared const?

Thanks.

The "const" was the reason. Technically I had made the array 'read only' hence the error. I anyone wants to know the IDE I use is WxDevC++ 6.10.2

I could not work out the error, as the usually mean i have used >> and not <<