Thread: How do I heap sort alphabetically?

I have a heapsort function which i've used to sort a list of integers. How do I adapt this function to sort a list of strings alphbetically?
My sort function is:

Code:

int temp, item, j;
for(int k=i-1; k>0; k--)
{
	for(int i=0; i<=k; i++)
	{
		item=value[i].first_name;
		j=i/2;
		while (j>0 && value[j].first_name<item)
		{
			value[i].first_name=value[j].first_name;
			i=j;
			j=j/2;
		}
		value[i].first_name=item;
	}

	temp=value[1].first_name;
	value[1].first_name=value[k].first_name;
	value[k].first_name=temp;
}