Why does my C program in CLion add an extra line after input?

Question

I'm running a simple C program in CLion on Windows:

#include <stdio.h>

int main() {
    char c;
    scanf("%c", &c);
    printf("%c", c);
    return 0;
}

When I input a character (e.g., 0) and press Enter, the output appears with a blank line in between. Here's what I see in the Run window:

0     ← input
       ← unexpected extra line
0     ← output

The **output when running the program in CLion looks like this: enter image description here

This is not what happens when I run the same code in a terminal like CMD or PowerShell — only CLion seems to show this extra newline between input and output.

Potentially useful external link: CLion 2021.3.2 adding random newline characters in the terminal output? on intellij-support.jetbrains.com — Chris
– Chris, Commented Jun 6 at 17:35
It's a CLion console bug, run your program using an external console as suggested in the link. — Barmar
– Barmar, Commented Jun 6 at 18:23

Bprof · Accepted Answer · 2025-08-22 08:11:56Z

0

Go to Run -> Edit Configurations -> Additional options -> Check "Emulate terminal in the output console"

answered Aug 22 at 8:11

Bprof

1

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