1! { dg-do compile }
2! { dg-shouldfail "Invalid use of VOLATILE" }
3! Test whether volatile statements and attributes are
4! properly error checked.
5! PR fortran/29601
6program volatile_test
7  implicit none
8  real, external,  volatile :: foo ! { dg-error "VOLATILE attribute conflicts with EXTERNAL attribute" }
9  real, intrinsic, volatile :: sin ! { dg-error "VOLATILE attribute conflicts with INTRINSIC attribute" }
10  real, parameter, volatile :: r = 5.5 ! { dg-error "PARAMETER attribute conflicts with VOLATILE attribute" }
11  real :: l,m
12  real,volatile :: n
13  real, volatile,volatile :: r = 3. ! { dg-error "Duplicate VOLATILE attribute" }
14  volatile :: l,n ! { dg-warning "Duplicate VOLATILE attribute" }
15  volatile ! { dg-error "Syntax error in VOLATILE statement" }
16  volatile :: volatile_test ! { dg-error "PROGRAM attribute conflicts with VOLATILE attribute" }
17  l = 4.0
18  m = 3.0
19contains
20  subroutine foo(a) ! { dg-error "has no IMPLICIT type" } ! due to error below
21    integer, intent(in), volatile :: a ! { dg-error "VOLATILE attribute conflicts with INTENT\\(IN\\)" }
22  end subroutine
23end program volatile_test
24