A Programming-related Request...

Because I know I have some people on my subscriber list who do non-Perl programming! Does anyone have any good resources for practicing bitwise operators, octal and hexadecimal math, and/or conversions between different types of int (short vs long, signed vs unsigned). I screwed that section of my last C programming exam up massively because Perl doesn't even make you declare int vs double, and Java doesn't get into different int types.