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105 lines
2.9 KiB
105 lines
2.9 KiB
! RUN: %S/test_errors.sh %s %t %f18
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! Test restrictions on what subprograms can be used for defined operators.
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! See: 15.4.3.4.2
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module m1
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interface operator(+)
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!ERROR: OPERATOR(+) procedure 'add1' must be a function
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subroutine add1(x, y, z)
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real, intent(out) :: x
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real, intent(in) :: y, z
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end
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end interface
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end
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module m2
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interface operator(-)
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real function sub1(x)
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logical, intent(in) :: x
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end
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real function sub2(x, y)
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logical, intent(in) :: x, y
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end
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!ERROR: OPERATOR(-) function 'sub3' must have one or two dummy arguments
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real function sub3(x, y, z)
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real, intent(in) :: x, y, z
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end
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end interface
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interface operator(.not.)
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!ERROR: OPERATOR(.NOT.) function 'not1' must have one dummy argument
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real function not1(x, y)
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real, intent(in) :: x, y
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end
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end interface
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end
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module m3
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interface operator(/)
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!ERROR: OPERATOR(/) function 'divide' may not have assumed-length CHARACTER(*) result
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character(*) function divide(x, y)
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character(*), intent(in) :: x, y
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end
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end interface
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interface operator(<)
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!ERROR: In OPERATOR(<) function 'lt1', dummy argument 'x' must have INTENT(IN) or VALUE attribute
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!ERROR: In OPERATOR(<) function 'lt1', dummy argument 'y' may not be OPTIONAL
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logical function lt1(x, y)
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logical :: x
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real, value, optional :: y
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end
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!ERROR: In OPERATOR(<) function 'lt2', dummy argument 'y' must be a data object
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logical function lt2(x, y)
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logical, intent(in) :: x
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intent(in) :: y
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interface
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subroutine y()
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end
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end interface
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end
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end interface
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end
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module m4
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interface operator(+)
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!ERROR: OPERATOR(+) function 'add' conflicts with intrinsic operator
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complex function add(x, y)
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real, intent(in) :: x
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integer, value :: y
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end
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!ERROR: OPERATOR(+) function 'plus' conflicts with intrinsic operator
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real function plus(x)
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complex, intent(in) :: x
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end
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end interface
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interface operator(.not.)
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real function not1(x)
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real, value :: x
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end
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!ERROR: OPERATOR(.NOT.) function 'not2' conflicts with intrinsic operator
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logical(8) function not2(x)
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logical(8), value :: x
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end
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end interface
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interface operator(.and.)
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!ERROR: OPERATOR(.AND.) function 'and' conflicts with intrinsic operator
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real function and(x, y)
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logical(1), value :: x
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logical(8), value :: y
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end
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end interface
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interface operator(//)
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real function concat1(x, y)
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real, value :: x, y
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end
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real function concat2(x, y)
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character(kind=1, len=4), intent(in) :: x
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character(kind=4, len=4), intent(in) :: y
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end
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!ERROR: OPERATOR(//) function 'concat3' conflicts with intrinsic operator
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real function concat3(x, y)
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character(kind=4, len=4), intent(in) :: x
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character(kind=4, len=4), intent(in) :: y
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end
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end interface
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end
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