org-mode/testing/examples/ob-fortran-test.org

#+Title: a collection of examples for ob-fortran tests
#+OPTIONS: ^:nil

* simple programs
  :PROPERTIES:
  :ID:       459384e8-1797-4f11-867e-dde0473ea7cc
  :END:
#+source: hello
#+begin_src fortran :results silent
print *, 'Hello world'
#+end_src

#+source: fortran_parameter
#+begin_src fortran :results silent
integer, parameter :: i = 10
write (*, '(i2)') i
#+end_src

* variable resolution
  :PROPERTIES:
  :ID:       d8d1dfd3-5f0c-48fe-b55d-777997e02242
  :END:
#+begin_src fortran :var N = 15 :results silent
write (*, '(i2)') N
#+end_src

Define for preprocessed fortran
#+begin_src fortran :defines N 42 :results silent
implicit none
write (*, '(i2)') N
#+end_src

#+begin_src fortran :var s="word" :results silent
write (*, '(a4)') s
#+end_src
* arrays
  :PROPERTIES:
  :ID:       c28569d9-04ce-4cad-ab81-1ea29f691465
  :END:
Real array as input
#+begin_src fortran :var s='(1.0 2.0 3.0) :results silent
write (*, '(3f5.2)'), s
#+end_src

#+tblname: test_tbl
| 1.0 |
| 2.0 |

#+begin_src fortran :var s=test_tbl :results silent
write (*, '(2f5.2)'), s
#+end_src

* failing
  :PROPERTIES:
  :ID:       891ead4a-f87a-473c-9ae0-1cf348bcd04f
  :END:
Should fail (TODO: add input variables for the case with explicit
program statement)
#+begin_src fortran :var s="word" :results silent
program ex
print *, "output of ex program"
end program ex
#+end_src

Fails to compile (TODO: error check in ob-fortran.el)
#+begin_src fortran :var s='(1 ()) :results silent
print *, s
#+end_src

Should fail to compile with gfortran
#+begin_src fortran :flags --std=f95 --pedantic-error :results silent
program ex
integer*8 :: i
end program ex
#+end_src

* programs input parameters
  :PROPERTIES:
  :ID:       2d5330ea-9934-4737-9ed6-e1d3dae2dfa4
  :END:
Pass parameters to the program
#+begin_src fortran :cmdline "23" :results silent
character(len=255) :: cmd
call get_command_argument(1, cmd)
write (*,*) trim(cmd)
#+end_src