------- Comment #3 from kargl at gcc dot gnu dot org 2009-07-21 19:49 -------
(In reply to comment #2)
> Just to clarify: you might misunderstand this. In Fortran, -Wunused-parameters
> is used to issue a warning whenever a constant (which in Fortran called
> "PARAMETER") is declared but not used. It has nothing to do with function's
> parameters in the usual ("C") sense.
>
I'm not misunderstanding. There isn't a -Wunused-parameters option.
Notice the 's' at the end. So, asking for the negation of a nonexistent
option is questionable. Since you cite gcc documentation, the logical
conclusion is that you meant the -Wunused-parameter option. Notice the
lack of the 's'.
troutmask:sgk[246] cat a.f90
subroutine tests(i)
integer i ! Unused argument
integer, parameter :: j = 42 ! Unused parameter
print *, 'hi'
end subroutine tests
troutmask:sgk[247] gfc4x -c -Wall a.f90
a.f90:1.18:
subroutine tests(i)
1
Warning: Unused dummy argument 'i' at (1)
troutmask:sgk[248] gfc4x -c -Wall -Wextra a.f90
a.f90:1.18:
subroutine tests(i)
1
Warning: Unused dummy argument 'i' at (1)
a.f90:3.26:
integer, parameter :: j = 42
1
Warning: Unused parameter 'j' declared at (1)
troutmask:sgk[249] gfc4x -c -Wall -Wextra -Wno-unused a.f90
troutmask:sgk[250] gfc4x -c -Wall -Wextra -Wno-unused-parameter a.f90
a.f90:1.18:
subroutine tests(i)
1
Warning: Unused dummy argument 'i' at (1)
troutmask:sgk[251] gfc4x -c -Wall -Wextra -Wno-unused-parameter
-Wno-unused-vari
able a.f90
troutmask:sgk[252]
AFAICT, the options are workng on trunk.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40820
