Nodes of different colours represent the following:
Solid arrows point from a file to a file which depends upon it. A file is dependent upon another if the latter must be compiled before the former can be.
program volatile_doctest use befor64 use befor64 use penf real(R4P) :: scalar_R4 call b64_decode(code='AAAAAA==',n=scalar_R4) print "(L1)", scalar_R4==0._R4P endprogram volatile_doctest