#define statements within a namespace

Question

If I have a #define statement within a namespace as such:

namespace MyNamespace
{
  #define SOME_VALUE 0xDEADBABE
}

Am I correct in saying that

Answer 1

The preprocessor operates (conceptually at least, and often actually too) before namespaces and other language-level concepts "kick in" -- so yes, it's definitely much better to use language-level constructs such as const values wherever you can!