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How to use a 2d array in a reference

Ssturges (75)
normally when I want to pull data out of a function without returning, I could just do something like:


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#include<iostream>

using namespace std;

void Example(int& x, string& name);
.
.
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int main()
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That usually does the trick, but for 2D arrays, Im learning that is not the case.

How can I do the same thing as above, but with a 2d array?

Thanks
Peter87 (11178)
When you pass an array to a function you actually passing a pointer so all the changes you make to the array inside the function will affect affect the original array you passed in.
Ssturges (75)
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void Assign_Array(string line, ifstream& in_file,  string Grid[][size])
{

//string Grid[size][size];
    string numline;

    if( line == "N")
    {

        for ( int y=0; y<=8; y++)
        {
            getline(in_file,numline);

            for ( int x=0; x<=8;x++)
            {
                Grid[x][y]=numline[x];

            }

        }

    }

//return 0;






void Get_Info()
{
    string line ,Grid[size][size];
    ifstream in_file;

    in_file.open( file.txt");

    getline(in_file,line);

    Display(line, in_file);
    Assign_Array(line, in_file,Grid);

cout<<endl;
    for ( int t=0; t<=8; t++)
    {
        for(int s=0; s<=8; s++)
        {
            cout<<Grid[t][s];
        }
        cout<<endl;
    }



}




could you please tell me what I am doing wrong with this?
Peter87 (11178)
You missed a double quote " on line 36
benjamin d (36)
Assign_Array is missing a closing bracket after the commented return 0.

in_file.open (line 36) has a space instead of a second quotation mark, resulting in messing up the rest of the code.
Last edited on
Ssturges (75)
I see, I must have made a mistake when pasting,my issue isn't the code working, its the fact that when I run it, the Array, Grid, shows something completely wiered, but when I show it in the function Assign_Array it runs fine, but as soon as I try to show it in Get_Info, it shows something completely different
Peter87 (11178)
Are you sure the Display function is working properly?

Is size > 8?
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