This is a Minimal Viable Example for demonstrating a discrepancy in handling
of bitfields by different compilers.

See <https://stackoverflow.com/questions/60718832/inconsistent-truncation-of-unsigned-bitfield-integer-expressions-between-c-and>
for the discussion.

To compile in a Unix environment: use `make`. On Windows, compile main.c,
c-part.c and cpp-part.cpp from e.g. command line environment.