Module strings 

Helpers to write CStrings

The std::ffi::CString type does not implement std::io::Write (since it cannot support values containing zero bytes), so we implement our own wrappers.

One way is to use WriteIntoCString::write_into, which takes a closure, which then takes a writer.

Another is to create a CStringWriter explicitly.

Structs

CStringWriter

A helper that enables writing into CStrings

Traits

WriteIntoCString

Extension trait to enable Write on CString