source: https://msdn.microsoft.com/en-us/library/aa279034(v=vs.60).aspx

isues:
not compiling:


FORMAIN.FOR:3:26:

     INTERFACE TO INTEGER*4 FUNCTION Fact [C,ALIAS:'_Fact'] (n)
                        1
Error: Syntax error: Trailing garbage in INTERFACE statement at (1)
FORMAIN.FOR:4:19:

     INTEGER*4 n [VALUE]
                 1
Fatal Error: Coarrays disabled at (1), use '-fcoarray=' to enable
