llvm-project/flang/test/Semantics/c_f_pointer.f90

33 lines
1.4 KiB
Fortran

! RUN: %S/test_errors.sh %s %t %f18
! Enforce 18.2.3.3
program test
use iso_c_binding, only: c_ptr, c_f_pointer
type(c_ptr) :: scalarC, arrayC(1)
type :: with_pointer
integer, pointer :: p
end type
type(with_pointer) :: coindexed[*]
integer, pointer :: scalarIntF, arrayIntF(:)
character(len=:), pointer :: charDeferredF
integer :: j
call c_f_pointer(scalarC, scalarIntF) ! ok
call c_f_pointer(scalarC, arrayIntF, [1_8]) ! ok
call c_f_pointer(shape=[1_8], cptr=scalarC, fptr=arrayIntF) ! ok
call c_f_pointer(scalarC, shape=[1_8], fptr=arrayIntF) ! ok
!ERROR: A positional actual argument may not appear after any keyword arguments
call c_f_pointer(scalarC, fptr=arrayIntF, [1_8])
!ERROR: CPTR= argument to C_F_POINTER() must be a C_PTR
call c_f_pointer(j, scalarIntF)
!ERROR: CPTR= argument to C_F_POINTER() must be scalar
call c_f_pointer(arrayC, scalarIntF)
!ERROR: SHAPE= argument to C_F_POINTER() must appear when FPTR= is an array
call c_f_pointer(scalarC, arrayIntF)
!ERROR: SHAPE= argument to C_F_POINTER() may not appear when FPTR= is scalar
call c_f_pointer(scalarC, scalarIntF, [1_8])
!ERROR: FPTR= argument to C_F_POINTER() may not have a deferred type parameter
call c_f_pointer(scalarC, charDeferredF)
!ERROR: FPTR= argument to C_F_POINTER() may not be a coindexed object
call c_f_pointer(scalarC, coindexed[0]%p)
end program