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! RUN: %python %S/test_errors.py %s %flang_fc1
! Procedure pointer assignments and argument association with intrinsic functions
program test
abstract interface
real function realToReal(a)
real, intent(in) :: a
end function
real function intToReal(n)
integer, intent(in) :: n
end function
end interface
procedure(), pointer :: noInterfaceProcPtr
procedure(realToReal), pointer :: realToRealProcPtr
procedure(intToReal), pointer :: intToRealProcPtr
intrinsic :: float ! restricted specific intrinsic functions
intrinsic :: sqrt ! unrestricted specific intrinsic functions
external :: noInterfaceExternal
interface
elemental real function userElemental(a)
real, intent(in) :: a
end function
end interface
!ERROR: 'float' is not an unrestricted specific intrinsic procedure
noInterfaceProcPtr => float
!ERROR: 'float' is not an unrestricted specific intrinsic procedure
intToRealProcPtr => float
!ERROR: 'float' is not an unrestricted specific intrinsic procedure
call sub1(float)
!ERROR: 'float' is not an unrestricted specific intrinsic procedure
call sub2(float)
!ERROR: 'float' is not an unrestricted specific intrinsic procedure
call sub3(float)
noInterfaceProcPtr => sqrt ! ok
realToRealProcPtr => sqrt ! ok
!ERROR: Procedure pointer 'inttorealprocptr' associated with incompatible procedure designator 'sqrt': incompatible dummy argument #1: incompatible dummy data object types: REAL(4) vs INTEGER(4)
intToRealProcPtr => sqrt
call sub1(sqrt) ! ok
call sub2(sqrt) ! ok
!ERROR: Actual procedure argument has interface incompatible with dummy argument 'p=': incompatible dummy argument #1: incompatible dummy data object types: REAL(4) vs INTEGER(4)
call sub3(sqrt)
noInterfaceProcPtr => noInterfaceExternal ! ok
realToRealProcPtr => noInterfaceExternal ! ok
intToRealProcPtr => noInterfaceExternal !ok
call sub1(noInterfaceExternal) ! ok
!WARNING: Actual procedure argument has an implicit interface which is not known to be compatible with dummy argument 'p=' which has an explicit interface
call sub2(noInterfaceExternal)
!WARNING: Actual procedure argument has an implicit interface which is not known to be compatible with dummy argument 'p=' which has an explicit interface
call sub3(noInterfaceExternal)
!ERROR: Procedure pointer 'nointerfaceprocptr' with implicit interface may not be associated with procedure designator 'userelemental' with explicit interface that cannot be called via an implicit interface
noInterfaceProcPtr => userElemental
!ERROR: Non-intrinsic ELEMENTAL procedure 'userelemental' may not be passed as an actual argument
call sub1(userElemental)
contains
subroutine sub1(p)
external :: p
end subroutine
subroutine sub2(p)
procedure(realToReal) :: p
end subroutine
subroutine sub3(p)
procedure(intToReal) :: p
end subroutine
end
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