Re: Why double not? (!!)

[Xinok via Digitalmars-d-learn]

On Saturday, 19 November 2016 at 03:52:02 UTC, Ryan wrote:
Why do I see double `not` operators sometimes in D code? An 
example it the last post of this thread.

http://forum.dlang.org/thread/ktlpnikvdwgbvfaam...@forum.dlang.org

import core.sys.windows.windows : GetConsoleCP;
bool hasConsole = !!GetConsoleCP();

Thanks.

It's a more concise way of writing:
    GetConsoleCP() != 0

You can do this in C/C++ as well (and presumably some other 
languages).