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! RUN: %S/test_errors.sh %s %t %f18
subroutine s1
integer i, j
real r(2)
!ERROR: Equivalence set must have more than one object
equivalence(i, j),(r(1))
end
subroutine s2
integer i
type t
integer :: a
integer :: b(10)
end type
type(t) :: x
!ERROR: Derived type component 'x%a' is not allowed in an equivalence set
equivalence(x%a, i)
!ERROR: Derived type component 'x%b(2)' is not allowed in an equivalence set
equivalence(i, x%b(2))
end
integer function f3(x)
real x
!ERROR: Dummy argument 'x' is not allowed in an equivalence set
equivalence(i, x)
!ERROR: Function result 'f3' is not allow in an equivalence set
equivalence(f3, i)
end
subroutine s4
integer :: y
!ERROR: Pointer 'x' is not allowed in an equivalence set
!ERROR: Allocatable variable 'y' is not allowed in an equivalence set
equivalence(x, y)
real, pointer :: x
allocatable :: y
end
subroutine s5
integer, parameter :: k = 123
real :: x(10)
real, save :: y[1:*]
!ERROR: Coarray 'y' is not allowed in an equivalence set
equivalence(x, y)
!ERROR: Variable 'z' with BIND attribute is not allowed in an equivalence set
equivalence(x, z)
!ERROR: Variable 'z' with BIND attribute is not allowed in an equivalence set
equivalence(x(2), z(3))
real, bind(C) :: z(10)
!ERROR: Named constant 'k' is not allowed in an equivalence set
equivalence(x(2), k)
!ERROR: Variable 'w' in common block with BIND attribute is not allowed in an equivalence set
equivalence(x(10), w)
logical :: w(10)
bind(C, name="c") /c/
common /c/ w
integer, target :: u
!ERROR: Variable 'u' with TARGET attribute is not allowed in an equivalence set
equivalence(x(1), u)
end
subroutine s6
type t1
sequence
real, pointer :: p
end type
type :: t2
sequence
type(t1) :: b
end type
real :: x0
type(t1) :: x1
type(t2) :: x2
!ERROR: Derived type object 'x1' with pointer ultimate component is not allowed in an equivalence set
equivalence(x0, x1)
!ERROR: Derived type object 'x2' with pointer ultimate component is not allowed in an equivalence set
equivalence(x0, x2)
end
subroutine s7
type t1
end type
real :: x0
type(t1) :: x1
!ERROR: Nonsequence derived type object 'x1' is not allowed in an equivalence set
equivalence(x0, x1)
end
module m8
real :: x
real :: y(10)
end
subroutine s8
use m8
!ERROR: Use-associated variable 'x' is not allowed in an equivalence set
equivalence(x, z)
!ERROR: Use-associated variable 'y' is not allowed in an equivalence set
equivalence(y(1), z)
end
subroutine s9
character(10) :: c
real :: d(10)
integer, parameter :: n = 2
integer :: i, j
!ERROR: Substring with nonconstant bound 'n+j' is not allowed in an equivalence set
equivalence(c(n+1:n+j), i)
!ERROR: Substring with zero length is not allowed in an equivalence set
equivalence(c(n:1), i)
!ERROR: Array with nonconstant subscript 'j-1' is not allowed in an equivalence set
equivalence(d(j-1), i)
!ERROR: Array section 'd(1:n)' is not allowed in an equivalence set
equivalence(d(1:n), i)
character(4) :: a(10)
equivalence(c, a(10)(1:2))
!ERROR: 'a(10_8)(2_8:2_8)' and 'a(10_8)(1_8:1_8)' cannot have the same first storage unit
equivalence(c, a(10)(2:3))
end
subroutine s10
integer, parameter :: i(4) = [1, 2, 3, 4]
real :: x(10)
real :: y(4)
!ERROR: Array with vector subscript 'i' is not allowed in an equivalence set
equivalence(x(i), y)
end
subroutine s11(n)
integer :: n
real :: x(n), y
!ERROR: Automatic object 'x' is not allowed in an equivalence set
equivalence(x(1), y)
end
module s12
real, protected :: a
integer :: b
!ERROR: Equivalence set cannot contain 'a' with PROTECTED attribute and 'b' without
equivalence(a, b)
!ERROR: Equivalence set cannot contain 'a' with PROTECTED attribute and 'b' without
equivalence(b, a)
end
module s13
logical(8) :: a
character(4) :: b
type :: t1
sequence
complex :: z
end type
type :: t2
sequence
type(t1) :: w
end type
type(t2) :: c
!ERROR: Equivalence set cannot contain 'b' that is character sequence type and 'a' that is not
equivalence(a, b)
!ERROR: Equivalence set cannot contain 'c' that is numeric sequence type and 'a' that is not
equivalence(c, a)
double precision :: d
double complex :: e
!OK: d and e are considered to be a default kind numeric type
equivalence(c, d, e)
end
module s14
real :: a(10), b, c, d
!ERROR: 'a(2_8)' and 'a(1_8)' cannot have the same first storage unit
equivalence(a(1), a(2))
equivalence(b, a(3))
!ERROR: 'a(4_8)' and 'a(3_8)' cannot have the same first storage unit
equivalence(a(4), b)
equivalence(c, a(5))
!ERROR: 'a(6_8)' and 'a(5_8)' cannot have the same first storage unit
equivalence(a(6), d)
equivalence(c, d)
end
module s15
real :: a(2), b(2)
equivalence(a(2),b(1))
!ERROR: 'a(3_8)' and 'a(1_8)' cannot have the same first storage unit
equivalence(b(2),a(1))
end module
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