! RUN: %python %S/test_errors.py %s %flang_fc1
module m
type :: pdt(len)
integer, len :: len
character(len=len) :: ch
end type
contains
pure real function f(x,y)
real, intent(in) :: x, y
f = x + y
end function
impure real function f1(x,y)
f1 = x + y
end function
pure function f2(x,y)
real :: f2(1)
real, intent(in) :: x, y
f2(1) = x + y
end function
pure real function f3(x,y,z)
real, intent(in) :: x, y, z
f3 = x + y + z
end function
pure real function f4(x,y)
interface
pure real function x(); end function
pure real function y(); end function
end interface
f4 = x() + y()
end function
pure integer function f5(x,y)
real, intent(in) :: x, y
f5 = x + y
end function
pure real function f6(x,y)
real, intent(in) :: x(*), y(*)
f6 = x(1) + y(1)
end function
pure real function f7(x,y)
real, intent(in), allocatable :: x
real, intent(in) :: y
f7 = x + y
end function
pure real function f8(x,y)
real, intent(in), pointer :: x
real, intent(in) :: y
f8 = x + y
end function
pure real function f9(x,y)
real, intent(in), optional :: x
real, intent(in) :: y
f9 = x + y
end function
pure real function f10a(x,y)
real, intent(in), asynchronous :: x
real, intent(in) :: y
f10a = x + y
end function
pure real function f10b(x,y)
real, intent(in), target :: x
real, intent(in) :: y
f10b = x + y
end function
pure real function f10c(x,y)
real, intent(in), value :: x
real, intent(in) :: y
f10c = x + y
end function
pure function f11(x,y) result(res)
type(pdt(*)), intent(in) :: x, y
type(pdt(max(x%len, y%len))) :: res
res%ch = x%ch // y%ch
end function
subroutine errors
real :: a(10,10), b, c(10)
!ERROR: OPERATION= argument of REDUCE() must be a pure function of two data arguments
b = reduce(a, f1)
!ERROR: OPERATION= argument of REDUCE() must be a scalar function
b = reduce(a, f2)
!ERROR: OPERATION= argument of REDUCE() must be a pure function of two data arguments
b = reduce(a, f3)
!ERROR: OPERATION= argument of REDUCE() may not have dummy procedure arguments
b = reduce(a, f4)
!ERROR: OPERATION= argument of REDUCE() must have the same type as ARRAY=
b = reduce(a, f5)
!ERROR: Arguments of OPERATION= procedure of REDUCE() must be both scalar of the same type as ARRAY=, and neither allocatable, pointer, polymorphic, nor optional
b = reduce(a, f6)
!ERROR: Arguments of OPERATION= procedure of REDUCE() must be both scalar of the same type as ARRAY=, and neither allocatable, pointer, polymorphic, nor optional
b = reduce(a, f7)
!ERROR: Arguments of OPERATION= procedure of REDUCE() must be both scalar of the same type as ARRAY=, and neither allocatable, pointer, polymorphic, nor optional
b = reduce(a, f8)
!ERROR: Arguments of OPERATION= procedure of REDUCE() must be both scalar of the same type as ARRAY=, and neither allocatable, pointer, polymorphic, nor optional
b = reduce(a, f9)
!ERROR: If either argument of the OPERATION= procedure of REDUCE() has the ASYNCHRONOUS, TARGET, or VALUE attribute, both must have that attribute
b = reduce(a, f10a)
!ERROR: If either argument of the OPERATION= procedure of REDUCE() has the ASYNCHRONOUS, TARGET, or VALUE attribute, both must have that attribute
b = reduce(a, f10b)
!ERROR: If either argument of the OPERATION= procedure of REDUCE() has the ASYNCHRONOUS, TARGET, or VALUE attribute, both must have that attribute
b = reduce(a, f10c)
!ERROR: IDENTITY= must be present when the array is empty and the result is scalar
b = reduce(a(1:0,:), f)
!ERROR: IDENTITY= must be present when the array is empty and the result is scalar
b = reduce(a(1:0, 1), f, dim=1)
!ERROR: IDENTITY= must be present when DIM=1 and the array has zero extent on that dimension
c = reduce(a(1:0, :), f, dim=1)
!ERROR: IDENTITY= must be present when DIM=1 and the array has zero extent on that dimension
c = reduce(a(1:0, :), f, dim=1)
!ERROR: IDENTITY= must be present when DIM=2 and the array has zero extent on that dimension
c = reduce(a(:, 1:0), f, dim=2)
c(1:0) = reduce(a(1:0, 1:0), f, dim=1) ! ok, result is empty
c(1:0) = reduce(a(1:0, 1:0), f, dim=2) ! ok, result is empty
!ERROR: MASK= has no .TRUE. element, so IDENTITY= must be present
b = reduce(a, f, .false.)
!ERROR: MASK= has no .TRUE. element, so IDENTITY= must be present
b = reduce(a, f, reshape([(j > 100, j=1, 100)], shape(a)))
b = reduce(a, f, reshape([(j == 50, j=1, 100)], shape(a))) ! ok
end subroutine
subroutine not_errors
type(pdt(10)) :: a(10), b
b = reduce(a, f11) ! check no bogus type incompatibility diagnostic
end subroutine
end module
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