How do I read one character from stdin? (getc in C)

[Adam D. Ruppe via Digitalmars-d-learn]

BTW I was slightly inaccurate: it doesn't *require* a library to 
do this, you just need to disable buffering. But the getc 
function itself doing that is dependent on some library 
implementation.

On Windows for example you need to call this function and turn 
off line input:

https://msdn.microsoft.com/en-us/library/windows/desktop/ms686033%28v=vs.85%29.aspx

On Unix it is this family of functions:

http://linux.die.net/man/3/tcsetattr


But regardless my library does this for you, so does ncurses, and 
a few others out there.