Question

I have declared a 2_D array as

int array [NO_OF_ROWS][NO_OF_COL];

NO_OF_ROWS and NO_OF_COL are constants.

I then have pointers *rowPtr and *seatPtr. I pass all of these to a function so I can save data from a binary file to the array along with an enumerated status as follows

 void loadArray (int* &rowPtr, int* &seatPtr, status& seatStatus,
               status seatArray[][NO_OF_COL])

in the function i try to save the status to the array with the line;

 seatArray[rowPtr][seatPtr] = seatStatus; 

when I try to compile I get the error:

invalid types ‘ status(*)[6][int*] for array subscript

I see that the array does not like the pointer value since it was declared as an int type. How would I set this up to allow the pointer to be used

Answer 1

You declared the pointers incorrectly. Try this:

void loadArray (int* rowPtr, int* seatPtr, status& seatStatus,
           status seatArray[][NO_OF_COL])

And then dereference the pointers when you want to use their values as such:

seatArray[*rowPtr][*seatPtr] = seatStatus;