_    __ _      
     _ __   ___  ___| |_ / _(_)_  __
    | '_ \ / _ \/ __| __| |_| \ \/ /
    | |_) | (_) \__ \ |_|  _| |>  < 
    | .__/ \___/|___/\__|_| |_/_/\_\
    |_|

Postfix calculator implemented by Jakob Klepp.

# Build

To build postfix just run ``make``.

# Usage


The postfix calculator can be started with ``./postfix``
or ``make run`` if you want to run postfix with drmemory.

To add a number to the stack, just type it in and press enter.

To perform a calculation, type in the operator
(``+``, ``-``, ``+``, ``/``, ``%``)
and press enter. These operators will consume the top
two numbers of the stack and put the result back on top.

To display the result, type in ``=`` and press enter.
This will consume the top number of the stack and display it.

If an operation would try to consume a number but the stack is empty
the program will be terminated with a segmentation fault (it's a feature).