Tighten up C++ API implementation a bit.
Tighten up C++ API implementation a bit.

333fred/ntcore,333fred/ntcore,wpilibsuite/ntcore,wpilibsuite/ntcore,333fred/ntcore,robotdotnet/ntcore,robotdotnet/ntcore,333fred/ntcore,robotdotnet/ntcore,robotdotnet/ntcore,wpilibsuite/ntcore,wpilibsuite/ntcore