[Bug fortran/64138] gfortran interface issue
kargl at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Mon Dec 1 17:24:00 GMT 2014
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64138
kargl at gcc dot gnu.org changed:
What |Removed |Added
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CC| |kargl at gcc dot gnu.org
--- Comment #1 from kargl at gcc dot gnu.org ---
(In reply to david from comment #0)
> Hi,
>
> I have created a complex number module:
>
> module complex_number_module
> implicit none
>
> integer, parameter :: loc_real_precision = 8
>
> type complex_number
> real(kind=loc_real_precision) :: real_part, imag_part
> end type complex_number
>
> interface c_sub
> module procedure c_sub_cc, & ! z1 - z2
> c_sub_cr, & ! z1 - num, where num is a
> real number
> c_sub_rc ! num - z1, where num is a
> real number
> end interface
>
> ! --------------------------------------------------------------------------
> type (complex_number) function c_sub_cc (z1, z2)
>
> type (complex_number), intent(in) :: z1, z2
>
> c_sub_cc%real_part = z1%real_part - z2%real_part
> c_sub_cc%imag_part = z1%imag_part - z2%imag_part
>
> end function c_sub_ccj
>
> ! --------------------------------------------------------------------------
> type (complex_number) function c_sub_cr (z1, num)
>
> type (complex_number), intent(in) :: z1
> real(kind=loc_real_precision), intent(in) :: num
>
> c_sub_cr%real_part = z1%real_part - num
> c_sub_cr%imag_part = z1%imag_part
>
> end function c_sub_cr
>
> ! --------------------------------------------------------------------------
> type (complex_number) function c_sub_rc (num, z1)
>
> type (complex_number), intent(in) :: z1
> real(kind=loc_real_precision), intent(in) :: num
>
> c_sub_rc%real_part = num - z1%real_part
> c_sub_rc%imag_part = - z1%imag_part
>
> end function c_sub_rc
>
> end module complex_number_module
>
> When I compile with gfortran (version 4.6.4), I got the following error:
>
> module_twoway_rrtmg_aero_optical_util.F:14.85:
>
> c_sub_rc ! num - z1, where num is a real number
> 1
>
> Error: Ambiguous interfaces 'c_sub_rc' and 'c_sub_cr' in generic interface
> 'c_sub' at (1)
>
> I don't see any ambiguity and I don't encounter any problem with other
> compilers such pgi and ifort. Please advise.
>
> Cheers,
> David
Please attach the exact code you tried to compile. The above is nonsense.
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