Using ctrl + z to end reading an array of characters in c++

Question

I want a, to be read until user presses Ctrl+Z. But it does nothing. My guess is that it's visual studios fault, because when I press Ctrl+Z it shows ^Z in console. What should I do? here is my code :

#include <iostream>
using namespace std;

int main()
{
    char a[50], b[20];
    int n;
    while (1)
    {
        if (NULL == fgets(a, 50, stdin)) 
            break;
        cin >> b;
        cin >> n;
    }

    return 0;
}

[How to send EOF via Windows terminal](https://stackoverflow.com/questions/16136400/how-to-send-eof-via-windows-terminal) — Remy Lebeau, Jun 10 '21 at 05:28
This is C++ not C. You may want to update the question title. — kaylum, Jun 10 '21 at 05:30
Might be helpful: https://learn.microsoft.com/en-us/windows/console/console-control-handlers — Martin Ba, Jun 10 '21 at 05:47
Also: https://stackoverflow.com/questions/31261483/why-ctrl-z-does-not-trigger-eof and https://stackoverflow.com/questions/5655112/why-do-i-require-multiple-eof-ctrlz-characters — Martin Ba, Jun 10 '21 at 05:48

score 1 · Answer 1 · answered Jun 10 '21 at 08:01

End of file in an interactive terminal does not depend on the language nor on the OS but on... the terminal and the configuration of the command interpretor.

If you use a true console on Windows running the good old cmd.exe, then Ctrl Z will be seen as an end of file. If you use an IDE, anything is possible and you should try also Ctrl D because some IDE prefere to provide a Unix compatible environment. After all Ctrl Z was the end of file on CP/M (ancestor of MS/DOS) in the 70'...

score 0 · Answer 2 · answered Sep 02 '21 at 12:06

0

I tried Enter then Ctrl Z then Enter then next ... and it worked

answered Sep 02 '21 at 12:06

Mohammad

11
2

Using ctrl + z to end reading an array of characters in c++

2 Answers2