[pineapple_sauce]

Yes, I'm well aware of the definition of a macro in C and C++. Macros are simpler than templates. You can expand them with a compiler flag.

[bluGill]

when things get complex templete error messages are easier to follow. nobody makes complex macros but if you tried. (template error messeges are legendary for a reason. nested macros are worse)

[account42]

> nobody makes complex macros

http://boost.org/libs/preprocessor