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! { dg-do compile }
! { dg-options "-std=legacy" }
! Tests the patch for PRs 25084, 20852, 25085 and 25086, all of
! which involve assumed character length functions.
! Compiled from original PR testcases, which were all contributed
! by Joost VandeVondele <jv244@cam.ac.uk>
!
! PR25084 - the error is not here but in any use of .IN.
! It is OK to define an assumed character length function
! in an interface but it cannot be invoked (5.1.1.5).
MODULE M1
TYPE SET
INTEGER CARD
END TYPE SET
END MODULE M1
MODULE INTEGER_SETS
INTERFACE OPERATOR (.IN.)
FUNCTION ELEMENT(X,A) ! { dg-error "cannot be assumed character length" }
USE M1
CHARACTER(LEN=*) :: ELEMENT
INTEGER, INTENT(IN) :: X
TYPE(SET), INTENT(IN) :: A
END FUNCTION ELEMENT
END INTERFACE
END MODULE
! 5.1.1.5 of the Standard: A function name declared with an asterisk
! char-len-param shall not be array-valued, pointer-valued, recursive
! or pure
!
! PR20852
RECURSIVE FUNCTION TEST() ! { dg-error "cannot be recursive" }
CHARACTER(LEN=*) :: TEST
TEST = ""
END FUNCTION
!PR25085
FUNCTION F1() ! { dg-error "cannot be array-valued" }
CHARACTER(LEN=*), DIMENSION(10) :: F1
F1 = ""
END FUNCTION F1
!PR25086
FUNCTION F2() result(f4) ! { dg-error "cannot be pointer-valued" }
CHARACTER(LEN=*), POINTER :: f4
f4 = ""
END FUNCTION F2
!PR?????
pure FUNCTION F3() ! { dg-error "cannot be pure" }
CHARACTER(LEN=*) :: F3
F3 = ""
END FUNCTION F3
function not_OK (ch)
character(*) not_OK, ch ! OK in an external function
not_OK = ch
end function not_OK
use m1
character(4) :: answer
character(*), external :: not_OK
integer :: i
type (set) :: z
interface
function ext (i)
character(*) :: ext
integer :: i
end function ext
end interface
answer = not_OK ("unOK") ! { dg-error "since it is not a dummy" }
END
! { dg-final { cleanup-modules "M1" } }
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