Fortran·Fortran essentials

Subroutines and modules

Modules group procedures and data with explicit interfaces.

Intermediate 10 min read Lesson 4 of 150 Challenge included
What you will be able to do
  • Use module ... contains.
  • Call subroutines with call.
  • Use intent(in) and intent(out).

In plain English

Modules group procedures and data with explicit interfaces.

  • Use module ... contains.
  • Call subroutines with call.
  • Use intent(in) and intent(out).
modules.f90FORTRAN
module math
  implicit none
contains
  function area(w, h) result(a)
    integer, intent(in) :: w, h
    integer :: a
    a = w * h
  end function area
end module math
Your turn

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Answer from memory: Which keyword introduces contained procedures?

TEXT · starter
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Knowledge checkQuestion 1

Which keyword introduces contained procedures?

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