vim new line at end of file during ifstream input

Question

I made some test file for an assignment that I'm doing, but I am not sure why vim is giving me extra characters at the end of file.

So I made an "ABC" file that contains A, B, and C with no new line at the end. So something like

vim ABC

AAAABBBCC

I outputted a portion of my read code

 46    while(1) {
 47       ch = infile.get();
 48       if(infile.eof()) {
 49          break;
 50       }
 51       cout << '~' << ch << '~' << (int)ch << '~' << endl;
 52       v[(int)ch]++;
 53    }

and I got

~A~65~
~A~65~
~A~65~
~A~65~
~A~65~
~B~66~
~B~66~
~B~66~
~C~67~
~C~67~
~
~10~

I am not sure why I am getting a newline character in my input file

Answer 1

with no new line at the end

No, you do have a newline character at the end. The newline functions as a line terminator , not a line separator , which is why even the last line is followed by '\\n'.

You can get vim to write an unterminated line with :set binary noeol , if you really need to, but it is then no longer what both vim and C++ consider a text file.