How it works

In Reverse Polish Notation, each operator follows its operands.
An infix expression like:

(1 + 2) * (4 - 5)

Is entered like:

1 2 + 4 5 - *

Expected behavior for this tool

• Base use:

$ rpc 5 5 + 10 2 - *
$ Result: 80
$ rpc 5 5 + 0 /
$ Error: attempt to divide by 0.
$ rcp 123 123 \* 123 - 444 / # need to use \* to escape character
$ Result: 33

• Using the show steps flag (-s):

$ rpc -s 5 5 + 10 2 - *
$ rpc: 5 5 + 10 2 - *
$ rpc: 10 8 *
$ rpc: 80

TODO

• Literally do the minimum.
• Add optional flags.
  • Show steps flag.
• Support floating-point numbers

Stuff learned

• Functions as Parameteres
• Malloc-Assigned Addresses Persistance
• About const type *