Help with two-dimensional arrays and function

**edesign** · 12-21-2009

Hi,

I want to pass a two dimensional array by reference to a function and then manipulate it's content in the called function.

I'm not sure about how to do it.

If you can help...

Thanks,
Edesign

**laserlight** · 12-21-2009

Even though it was posted in the C++ programming forum, in this case you can refer to this thread on 2D arrays.

**edesign** · 12-21-2009

Thanks laserlight.

I followed the thread u suggested and it works, though gcc gives me warning after compilation.

Here's how my program look like

Code:

int main()
{
int mat[3][3];
...
...
transpose(mat);
...
...
}

void transpose(int (*mat)[3])
{
...
}

and this is the warning I get....

warning: conflicting types for ‘transpose’
note: previous implicit declaration of ‘transpose’ was here

What may be the reason?

Thanks
Edesign

p.s: also how should I declare it? declaring as transpose(int *[]) gives error...

**laserlight** · 12-21-2009

Originally Posted by edesign

What may be the reason?

You forgot the function prototype.

Originally Posted by edesign

p.s: also how should I declare it? declaring as transpose(int *[]) gives error...

Copy and paste the first line of the function definition, adding a semi-colon at the end.

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