This is the exception thrown by fail(). There's no need to create or throw
this directly, but it's public in case you have reason to catch it.
Call this to end your program with an error message for the user, and no
ugly stack trace. The error message is sent to stderr and the errorlevel is
set to non-zero.
Calls fail() if the condition is false.
See Source File
Copyright (C) 2014-2017 Nick Sabalausky