compare the sizes of two boxes

[dubley]

I am trying to compare the sizes of two boxes. I am not sure I am going about this the right way but I don't know how to enter the parameters for the function call in line 28:
//cout << "The biggest box is: " << larger();
Any ideas?

 #include <iostream>
struct box
{
	char maker[40];
	float height;
	float width;
	float length;
	float volume;
};
void inputbox(box & input);
float set_volume(box & sample);
char larger(float t1, float t2);
using namespace std;
const int maxlength = 2;
int main()
{
	box * boxpointer = new box[maxlength];
	for (int x = 0; x < 2; x++)
	{
	inputbox(boxpointer[x]);
	}
	delete[]boxpointer;
	//cout << "The biggest box is: " << larger();
	return 0;
}
void inputbox(box & input)
{
	cout << "Enter box details." << endl;
	cout << "Enter box maker: ";
	cin >> input.maker;
	cout << "Enter box height: ";
	cin >> input.height;
	cout << "Enter box length: ";
	cin >> input.length;
	cout << "Enter box width: ";
	cin >> input.width;
	cout << "Volume of box " << input.maker << " is: " << set_volume(input)
		<< endl;
}
float set_volume(box & sample)
{
	sample.volume = sample.height * sample.width * sample.length;
	return sample.volume;
}
char larger(float t1, float t2)
{
	return t1 < t2 ? t1 : t2;
}

[Repeater]

What is larger meant to tell you? The size of the larger, or which is larger?

[dubley]

Hello, my aim is to output the maker name of the largest box. So for example if you input a and b as the maker names of the two boxes, and a has a volume of 8 and b has a volume of 12 then I want the output to be:
The biggest box is: b

[Enoizat]

#include <iostream>

struct box {
    char maker[40];
    double height;
    double width;
    double length;
    double volume;
};

void inputbox(box & input);
double set_volume(box & sample);

const int MAXLENGTH = 2;

int main()
{
    box * boxpointer = new box[MAXLENGTH];
    box largest;
    for (int x = 0; x < MAXLENGTH; x++) {
        inputbox(boxpointer[x]);
        if(largest.volume < boxpointer[x].volume) {
            largest = boxpointer[x];
        }
    }
    std::cout << "The biggest box is: " << largest.maker;
    delete[] boxpointer;
    return 0;
}

void inputbox(box & input)
{
    std::cout << "Enter box details.\n"
                 "Enter box maker: ";
    std::cin >> input.maker;
    std::cout << "Enter box height: ";
    std::cin >> input.height;
    std::cout << "Enter box length: ";
    std::cin >> input.length;
    std::cout << "Enter box width: ";
    std::cin >> input.width;
    input.volume = set_volume(input);
    std::cout << "Volume of box " << input.maker << " is: " 
              << input.volume << '\n';
}

double set_volume(box & sample)
{
    return sample.height * sample.width * sample.length;
}