passing arrays and passing pointers

if i have an array in main(), but i need to pass it to a function, which would be better (i want to modify the real array):

1. Declare a ptr in main() that points to the array, and pass it

2. Declare an array of ptrs in main() that points to the array, and pass it

3. Or just pass the array itself. because if i do this, isnt it automatically converted to a pointer in the function?

Quote:

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3. Or just pass the array itself. because if i do this, isnt it automatically converted to a pointer in the function

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an array name is a pointer, so just pass the array name

Code:

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void fill_array( char *p );

// in main

char array[20];

fill_array( array );

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Also on a side note because an array name is a pointer you can use pointer notation on it.

Code:

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char array[20];

*( array + 2 ) = 'a';

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i just went like this

Code:

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void UpdateDisplay(char Board[4][4]);

//in main

char board[4][4];

UpdateDisplay(Board);

//end main

void UpdateDisplay(char Board[4][4])
{
        for(int a=1;a<=3;a++)
        {
            cout<<static_cast<int>(Board[a][1])<<" | "<<static_cast<int>(Board[a][2])<<" | "<<static_cast<int>(Board[a][3])<<endl;
                if(a!=3) cout<<"--+---+---"<<endl;
        }
}

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and that acts like a pointer, how it modifies board[][4] in main()