// signedch.cpp This program finds out wheter the leftmost

// bit of type char is a signed bit

#include <iostream>

using namespace std;



int main() {



signed char s_ch = '\xFF';

unsigned char u_ch = '\xFF';

char ch = '\xFF'; // Binary: s_ch = u_ch = ch = 11111111

int s, u, i;

s = s_ch; // from signed char to int

u = u_ch; // From unsigned char to int

i = ch; // From char to int (system dependent)

cout << "For this C++ implementation, type char has " <<

( i == s ? "a sign bit.\n" : i == u ? "no sign bit. \n" : " not been implemented correctly.\n"

);

return 0;



}