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! { dg-do compile }

! This program tests the patch for PRs 20881, 23308, 25538 & 25710

! Assembled from PRs by Paul Thomas  

module m

contains

  subroutine g(x)   ! Local entity

    REAL :: x

    x = 1.0

  end subroutine g

end module m

! Error only appears once but testsuite associates with both lines.

function f(x)       ! { dg-error "is already being used as a FUNCTION" }

  REAL :: f, x

  f = x

end function f

function g(x)       ! Global entity

  REAL :: g, x

  g = x

! PR25710==========================================================

! Lahey -2607-S: "SOURCE.F90", line 26:

! Function 'f' cannot be referenced as a subroutine. The previous

! definition is in 'line 12'.

  call f(g) ! { dg-error "is already being used as a FUNCTION" }

end function g

! Error only appears once but testsuite associates with both lines.

function h(x)       ! { dg-error "is already being used as a FUNCTION" }

  REAL :: h, x

  h = x

end function h

SUBROUTINE TT()

  CHARACTER(LEN=10), EXTERNAL :: j

  CHARACTER(LEN=10)          :: T

! PR20881===========================================================

! Error only appears once but testsuite associates with both lines.

  T = j () ! { dg-error "is already being used as a FUNCTION" }

  print *, T

END SUBROUTINE TT

  use m             ! Main program

  real x

  integer a(10)

! PR23308===========================================================

! Lahey - 2604-S: "SOURCE.F90", line 52:

! The name 'foo' cannot be specified as both external procedure name

! and common block name. The previous appearance is in 'line 68'.

! Error only appears once but testsuite associates with both lines.

  common /foo/ a    ! { dg-error "is already being used as a COMMON" }

  call f (x)        ! OK - reference to local entity

  call g (x)        !             -ditto-

! PR25710===========================================================

! Lahey - 2607-S: "SOURCE.F90", line 62:

! Function 'h' cannot be referenced as a subroutine. The previous

! definition is in 'line 29'.

  call h (x) ! { dg-error "is already being used as a FUNCTION" }

! PR23308===========================================================

! Lahey - 2521-S: "SOURCE.F90", line 68: Intrinsic procedure name or

! external procedure name same as common block name 'foo'.

  call foo () ! { dg-error "is already being used as a COMMON" }

contains

  SUBROUTINE f (x)  ! Local entity

    real x

    x = 2

  end SUBROUTINE f

end

! PR20881===========================================================

! Lahey - 2636-S: "SOURCE.F90", line 81:

! Subroutine 'j' is previously referenced as a function in 'line 39'.

SUBROUTINE j (x)    ! { dg-error "is already being used as a FUNCTION" }

  integer a(10)

  common /bar/ a    ! Global entity foo

  real x

  x = bar(1.0)      ! OK for local procedure to have common block name

contains

  function bar (x)

    real bar, x

    bar = 2.0*x

  end function bar

END SUBROUTINE j

! PR25538===========================================================

! would ICE with entry and procedure having same names.

  subroutine link2 (namef) ! { dg-error "is already being used as a SUBROUTINE" }

    entry link2 (nameg)    ! { dg-error "is already being used as a SUBROUTINE" }

    return

  end

! { dg-final { cleanup-modules "m" } }