Nodes of different colours represent the following:
Solid arrows point from a procedure to one which it calls. Dashed
arrows point from an interface to procedures which implement that interface.
This could include the module procedures in a generic interface or the
implementation in a submodule of an interface in a parent module.
Where possible, edges connecting nodes are
given different colours to make them easier to distinguish in
large graphs.
Source Code
logical function is_leap_year(year)integer,intent(in)::yearis_leap_year=(mod(year,4)==0).and.(mod(year,100)==0.or.mod(year,400)==0)end function is_leap_year