forked from OSchip/llvm-project
118 lines
2.8 KiB
Fortran
118 lines
2.8 KiB
Fortran
! RUN: %B/test/Semantics/test_errors.sh %s %flang %t
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! Confirm enforcement of constraints and restrictions in 15.6.2.1
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non_recursive function f01(n) result(res)
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integer, value :: n
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integer :: res
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if (n <= 0) then
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res = n
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else
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!ERROR: NON_RECURSIVE procedure 'f01' cannot call itself
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res = n * f01(n-1) ! 15.6.2.1(3)
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end if
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end function
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non_recursive function f02(n) result(res)
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integer, value :: n
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integer :: res
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if (n <= 0) then
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res = n
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else
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res = nested()
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end if
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contains
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integer function nested
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!ERROR: NON_RECURSIVE procedure 'f02' cannot call itself
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nested = n * f02(n-1) ! 15.6.2.1(3)
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end function nested
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end function
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!ERROR: An assumed-length CHARACTER(*) function cannot be RECURSIVE
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recursive character(*) function f03(n) ! C723
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integer, value :: n
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f03 = ''
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end function
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!ERROR: An assumed-length CHARACTER(*) function cannot be RECURSIVE
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recursive function f04(n) result(res) ! C723
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integer, value :: n
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character(*) :: res
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res = ''
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end function
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!ERROR: An assumed-length CHARACTER(*) function cannot return an array
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character(*) function f05()
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dimension :: f05(1) ! C723
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f05(1) = ''
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end function
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!ERROR: An assumed-length CHARACTER(*) function cannot return an array
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function f06()
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character(*) :: f06(1) ! C723
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f06(1) = ''
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end function
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!ERROR: An assumed-length CHARACTER(*) function cannot return a POINTER
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character(*) function f07()
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pointer :: f07 ! C723
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character, target :: a = ' '
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f07 => a
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end function
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!ERROR: An assumed-length CHARACTER(*) function cannot return a POINTER
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function f08()
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character(*), pointer :: f08 ! C723
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character, target :: a = ' '
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f08 => a
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end function
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!ERROR: An assumed-length CHARACTER(*) function cannot be PURE
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pure character(*) function f09() ! C723
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f09 = ''
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end function
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!ERROR: An assumed-length CHARACTER(*) function cannot be PURE
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pure function f10()
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character(*) :: f10 ! C723
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f10 = ''
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end function
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!ERROR: An assumed-length CHARACTER(*) function cannot be ELEMENTAL
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elemental character(*) function f11(n) ! C723
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integer, value :: n
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f11 = ''
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end function
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!ERROR: An assumed-length CHARACTER(*) function cannot be ELEMENTAL
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elemental function f12(n)
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character(*) :: f12 ! C723
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integer, value :: n
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f12 = ''
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end function
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function f13(n) result(res)
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integer, value :: n
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character(*) :: res
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if (n <= 0) then
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res = ''
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else
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!ERROR: Assumed-length CHARACTER(*) function 'f13' cannot call itself
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res = f13(n-1) ! 15.6.2.1(3)
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end if
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end function
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function f14(n) result(res)
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integer, value :: n
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character(*) :: res
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if (n <= 0) then
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res = ''
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else
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res = nested()
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end if
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contains
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character(1) function nested
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!ERROR: Assumed-length CHARACTER(*) function 'f14' cannot call itself
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nested = f14(n-1) ! 15.6.2.1(3)
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end function nested
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end function
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