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Help needed! drawing a diamond

fsuguy92 (3)
Hey guys, i have a project due for class where we have to draw a diamond using for loops. I've got most of it done except the draw function. If you guys can help me write the draw function or point me in the right direction i'd appreciate it!
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#include "diamond.h"
using namespace std;

Diamond::Diamond (int size, char borderchar, char fillchar)
{
	if (size<1)
	{
		size=1;
	}
	if (size>39)
	{
		size=39;
	}
	SetBorder(borderchar);
	SetFill(fillchar);
}

int Diamond::GetSize()
{
	return size;
}

int Diamond::Perimeter()
{
	return size*4;
}

int Diamond::Area()
{
	return size*size;
}

void Diamond::Grow()
{
	if (size <=38 && size >= 1)
		size=size++;

	else
		size=1;
}

void Diamond::Shrink()
{
	if (size >=2 && size<=40)
		size=size--;
	else
		size=1;
}

void Diamond::SetBorder(char borderchar)
{
	if (borderchar >='!' && borderchar <='~')
	{
		border = borderchar;
	}
	else
	{
		border = '#';
	}
}

void Diamond::SetFill(char fillchar)
{
	if (fillchar >='!' && fillchar <='~')
	{
		fill = fillchar;
	}
	else
	{
		fill = '*';
	}
}

void Diamond::Draw()
{
        for (
cnoeval (643)
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