// 8-bit integer interpretation

// #include <iostream>			// Prior to C++20 header file for input and output
// import <iostream>;           // Since C++20
// #include <bitset>            // Header for bitset (binary representation)

import std;                     // Since C++23  STD Module for standard data types and functions

using std::cout;
using std::endl;

int main() {
	// Type char is used to define 8-bit numbers

	unsigned char u1;		// unsigned 8-bit integer
	signed char s1;			// signed 8-bit integer

	u1 = 100;
	cout << "Unsigned u1: Binary = " << std::bitset<8>(u1) << " ; Decimal = " << static_cast<int>(u1) << endl;
	
	s1 = u1;				// u1 is assigned to s1
	cout << "Signed s1:   Binary = " << std::bitset<8>(s1) << " ; Decimal = " << static_cast<int>(s1) <<  endl;
	cout << "---------------------------" << endl;

	u1 = 255;
	cout << "Unsigned u1: Binary = " << std::bitset<8>(u1) << " ; Decimal = " << static_cast<int>(u1) << endl;

	s1 = u1;				// u1 is assigned to s1. Decimal 255 cannot be reprsesented as an 8-bit signed integer!
	cout << "Signed s1:   Binary = " << std::bitset<8>(s1) << " ; Decimal = " << static_cast<int>(s1) << endl;

	return 0;
}