95f4ca7f5d
The predicate "CanBeCalledViaImplicitInterface()" was returning false for restricted specific intrinsic functions (e.g., SIN) because their procedure characteristics have the elemental attribute; this leads to a bogus semantic error when one attempts to use them as proc-targets in procedure pointer assignment statements when the left-hand side of the assignment is a procedure pointer with an implicit interface. However, these restricted specific intrinsic functions have always been allowed as special cases for such usage -- it is as if they are elemental when it is necessary for them to be so, but not when it's a problem. Differential Revision: https://reviews.llvm.org/D130386
35 lines
1.5 KiB
Fortran
35 lines
1.5 KiB
Fortran
! RUN: %python %S/test_errors.py %s %flang_fc1
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! Enforce 18.2.3.3
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program test
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use iso_c_binding, only: c_ptr, c_f_pointer
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type(c_ptr) :: scalarC, arrayC(1)
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type :: with_pointer
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integer, pointer :: p
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end type
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type(with_pointer) :: coindexed[*]
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integer, pointer :: scalarIntF, arrayIntF(:)
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character(len=:), pointer :: charDeferredF
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integer :: j
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call c_f_pointer(scalarC, scalarIntF) ! ok
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call c_f_pointer(scalarC, arrayIntF, [1_8]) ! ok
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call c_f_pointer(shape=[1_8], cptr=scalarC, fptr=arrayIntF) ! ok
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call c_f_pointer(scalarC, shape=[1_8], fptr=arrayIntF) ! ok
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!ERROR: A positional actual argument may not appear after any keyword arguments
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call c_f_pointer(scalarC, fptr=arrayIntF, [1_8])
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!ERROR: CPTR= argument to C_F_POINTER() must be a C_PTR
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call c_f_pointer(j, scalarIntF)
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!ERROR: Rank of dummy argument is 0, but actual argument has rank 1
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call c_f_pointer(arrayC, scalarIntF)
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!ERROR: SHAPE= argument to C_F_POINTER() must appear when FPTR= is an array
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call c_f_pointer(scalarC, arrayIntF)
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!ERROR: SHAPE= argument to C_F_POINTER() may not appear when FPTR= is scalar
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call c_f_pointer(scalarC, scalarIntF, [1_8])
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!ERROR: FPTR= argument to C_F_POINTER() may not have a deferred type parameter
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call c_f_pointer(scalarC, charDeferredF)
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!ERROR: FPTR= argument to C_F_POINTER() may not be a coindexed object
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call c_f_pointer(scalarC, coindexed[0]%p)
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!ERROR: FPTR= argument to C_F_POINTER() must have a type
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call c_f_pointer(scalarC, null())
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end program
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