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FTN95 does not allow FINDLOC for LOGICAL arrays

 
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mecej4



Joined: 31 Oct 2006
Posts: 1886

PostPosted: Sun Feb 18, 2024 1:20 pm    Post subject: FTN95 does not allow FINDLOC for LOGICAL arrays Reply with quote

The FINDLOC intrinsic function was added in F2008, and it was added to the repertoire of FTN95 in 2022. The BACK optional argument was added to FTN95 in Nov. 2023. According to F2008 the required first argument, ARRAY, may be an array of any intrinsic type. FTN95, however, does not allow ARRAY to be of type logical.

Code:
program tfindloc

   implicit none
   real :: rhs(6) = (/ -2.5, -1.3, 0.0, 0.0, 0.0, 1.551E-4 /)
   integer :: ifloc

! Find the position of the first non-zero in rhs and put it in IFLOC

   ifloc = FINDLOC(abs(rhs) > 0.0, VALUE = .true., DIM = 1)
   print *,' ifmloc = ',ifloc    ! expected: 1

end program


The compiler says:

Code:
T:\HST216\ASIZN2>ftn95 tminloc.f90
[FTN95/Win32 Ver. 9.02.0.0 Copyright (c) Silverfrost Ltd 1993-2024]
ERROR T:\HST216\ASIZN2\tminloc.F90 8:  The first argument (ARRAY) to the intrinsic FINDLOC must be of INTEGER or REAL type, not LOGICAL(KIND=3)
ERROR T:\HST216\ASIZN2\tminloc.F90 8:  The second argument (VALUE) to the intrinsic FINDLOC must be of INTEGER or REAL type, not LOGICAL(KIND=3)
ERROR T:\HST216\ASIZN2\tminloc.F90 8:  The first argument of FINDLOC must not be a scalar
ERROR T:\HST216\ASIZN2\tminloc.F90 8:  Compilation abandoned


Last edited by mecej4 on Mon Feb 19, 2024 12:09 pm; edited 1 time in total
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PaulLaidler
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Joined: 21 Feb 2005
Posts: 7925
Location: Salford, UK

PostPosted: Mon Feb 19, 2024 9:55 am    Post subject: Reply with quote

mecej4

Thank you for the feedback. I have added this to the list.
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PaulLaidler
Site Admin


Joined: 21 Feb 2005
Posts: 7925
Location: Salford, UK

PostPosted: Fri Mar 01, 2024 4:57 pm    Post subject: Reply with quote

FTN95 will be able to handle FINDLOC with logical arrays in the next release of FTN95 and the associated DLLs (Win32 and x64).
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