#include <iostream>
                         
using namespace std;

int main()
{
	float val;
	cout << "Please enter a float: ";   
	cin >> val;
	char temp;
	union int_to_char
	{
	  float floatVal;
	  char byte[4];
	}
	conv;
	conv.floatVal = val;
	temp = conv.byte[0];
	conv.byte[0] = conv.byte[3];
	conv.byte[3] = temp;
	temp = conv.byte[1];
	conv.byte[1] = conv.byte[2];
	conv.byte[2] = temp;
  val = conv.floatVal;

	cout << "val: " << val << endl;
	
return 0;
}

/*output :
Please enter a float: 369
val: 1.1821e-38

or

Please enter a float: 155
val: 9.77966e-42
*/