What is the purpose of this if statement in getch?

[dospunk]

if (ch == '\r') {
    ch = getchar();
}

I assume it's to deal with enter inserting \r\n instead of just \n, but I want to make sure that's correct

[adam-mcdaniel]

It's meant to prevent getch from ever returning a '\r' character. I mostly did this for compatibility between *nix and windows.

[dospunk]

Got it, thanks!