74 lines
1.5 KiB
Fortran
74 lines
1.5 KiB
Fortran
! { dg-do run }
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!
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! basic tests of PROCEDURE POINTERS
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!
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! Contributed by Janus Weil <janus@gcc.gnu.org>
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module m
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contains
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subroutine proc1(arg)
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character (5) :: arg
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arg = "proc1"
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end subroutine
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integer function proc2(arg)
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integer, intent(in) :: arg
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proc2 = arg**2
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end function
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complex function proc3(re, im)
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real, intent(in) :: re, im
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proc3 = complex (re, im)
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end function
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end module
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subroutine foo1
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end subroutine
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real function foo2()
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foo2=6.3
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end function
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program procPtrTest
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use m, only: proc1, proc2, proc3
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character (5) :: str
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PROCEDURE(proc1), POINTER :: ptr1
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PROCEDURE(proc2), POINTER :: ptr2
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PROCEDURE(proc3), POINTER :: ptr3 => NULL()
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PROCEDURE(REAL), SAVE, POINTER :: ptr4
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PROCEDURE(), POINTER :: ptr5,ptr6
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EXTERNAL :: foo1,foo2
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real :: foo2
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if(ASSOCIATED(ptr3)) call abort()
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NULLIFY(ptr1)
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if (ASSOCIATED(ptr1)) call abort()
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ptr1 => proc1
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if (.not. ASSOCIATED(ptr1)) call abort()
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call ptr1 (str)
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if (str .ne. "proc1") call abort ()
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ptr2 => NULL()
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if (ASSOCIATED(ptr2)) call abort()
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ptr2 => proc2
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if (.not. ASSOCIATED(ptr2,proc2)) call abort()
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if (10*ptr2 (10) .ne. 1000) call abort ()
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ptr3 => NULL (ptr3)
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if (ASSOCIATED(ptr3)) call abort()
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ptr3 => proc3
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if (ptr3 (1.0, 2.0) .ne. (1.0, 2.0)) call abort ()
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ptr4 => cos
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if (ptr4(0.0)/=1.0) call abort()
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ptr5 => foo1
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call ptr5()
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ptr6 => foo2
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if (ptr6()/=6.3) call abort()
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end program
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! { dg-final { cleanup-modules "m" } }
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