Can you give an example of what you refer to?

In my impression, most of the redundancy in the C world comes from the header/code seperation, i.e. all the signatures are repeated. Another level of redundancy was added by C++ templates where one quickly needs to write lengthy expressions, but the newer C++ standards resolved much of that thanks to the "auto a = b" type keyword or the "use X = Y" definitions.

Note that "CPY" addresses none of these issues.