cin - why does this C++ code print a after every line? -

#include <iostream> using namespace std;    int main() {    (;;) {     char ch ;     if (cin.fail()) break;     cin.read((char*)&ch, sizeof(unsigned char));     cout<<hex<<(unsigned int)(unsigned char)ch<<endl;     cin.clear();   }    } 

why code print a after every line? used char standard input. added: trying read unformatted input read.

the a see hex value of '\n' character @ end of line of input.

if don't want see character, wrap output line in if statement checks character , doesn't bother output when it's seen:

if (ch != '\n') {     cout<<hex<<(unsigned int)(unsigned char)ch<<endl; }