Nodes of different colours represent the following:
Solid arrows point from a file to a file which it depends on. A file
is dependent upon another if the latter must be compiled before the former
can be.
Source Code
program volatile_doctestuse penf_stringifyuse penfprint FR4P,bcton('00000000000000001000000000111111',knd=1._R4P)endprogram volatile_doctest