(cppinternals.info.gz) Conventions

 
 Conventions
 ***********
 
 cpplib has two interfaces--one is exposed internally only, and the
 other is for both internal and external use.
 
    The convention is that functions and types that are exposed to
 multiple files internally are prefixed with `_cpp_', and are to be
 found in the file `internal.h'.  Functions and types exposed to external
 clients are in `cpplib.h', and prefixed with `cpp_'.  For historical
 reasons this is no longer quite true, but we should strive to stick to
 it.
 
    We are striving to reduce the information exposed in `cpplib.h' to
 the bare minimum necessary, and then to keep it there.  This makes clear
 exactly what external clients are entitled to assume, and allows us to
 change internals in the future without worrying whether library clients
 are perhaps relying on some kind of undocumented implementation-specific
 behavior.

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