moo is a simple calculator that accepts C-like syntax as input.
Calculations are done on expr, if given. Otherwise, the standard
input is used.

Numbers can be entered in hexadecimal (0xbeef), decimal (1984),
octal (007), and binary (0b1001). All numerical operators (+, -,
*, /, %), bit operators (|, ^, &, ~, <<, >>), and logical operators
(==, !=, <, >, <=, >=, !, &&, ||) are supported.

moo is released into the public domain.
