Table of Contents
Retrieving Character Input from the User
It is possible to capture character input from the console using the scanf C library function.
For example, capture a character input using
scanf("%c", &input_char);
Detecting When the User Presses Return
Our UI console sends a new line (\n) when you hit return but doesn't send a carriage return (\r). When detecting a new line in code, use \n rather than \r.
For example the following will run, whereas using '\r' will hang:
while ( getchar() != '\n');
Modify How the Terminal Handles "newline"
Alternatively, you can adjust the terminal settings to not map CR to NL using the command stty -icrnl.
You can then send a \r by pressing Ctrl+M or \n by pressing Ctrl+J.