Files
clang-p2996/flang/test/Semantics/bind-c02.f90
Peter Klausler d03cd05f07 [flang] Propagate the BIND(C) attribute into procedures from their in… (#93994)
…terfaces

In "PROCEDURE(iface) :: proc", if "iface" has the BIND(C) attribute,
then so should proc, as if the declaration had been "PROCEDURE(iface),
BIND(C) :: proc". This had been working in name resolution only in cases
where "iface" had been declared before "proc".

Note that if "iface" is declared with an empty binding name
("BIND(C,NAME='')"), "proc" does not inherit that property. Use an
explicit "BIND(C,NAME='')" on the "PROCEDURE" statement for that.

This behavior is not clearly defined in the standard, but seems to match
what some other Fortran compilers do.
2024-06-03 14:49:08 -07:00

51 lines
1.3 KiB
Fortran

! RUN: %python %S/test_errors.py %s %flang_fc1 -pedantic
! Check for 8.6.4(1)
! The BIND statement specifies the BIND attribute for a list of variables and
! common blocks.
module m
interface
subroutine proc()
end
end interface
procedure(proc) :: pc1
!ERROR: Only variable and named common block can be in BIND statement
bind(c) :: proc
!ERROR: Only variable and named common block can be in BIND statement
bind(c) :: pc1
!ERROR: BIND_C attribute was already specified on 'sub'
!ERROR: Only variable and named common block can be in BIND statement
bind(c) :: sub
!PORTABILITY: Global name 'm' conflicts with a module
!PORTABILITY: Name 'm' declared in a module should not have the same name as the module
bind(c) :: m ! no error for implicit type variable
type my_type
integer :: i
end type
!ERROR: Only variable and named common block can be in BIND statement
bind(c) :: my_type
enum, bind(c) ! no error
enumerator :: SUNDAY, MONDAY
end enum
integer :: x, y, z = 1
common /blk/ y
bind(c) :: x, /blk/, z ! no error for variable and common block
bind(c) :: implicit_i ! no error for implicit type variable
!ERROR: 'implicit_blk' appears as a COMMON block in a BIND statement but not in a COMMON statement
bind(c) :: /implicit_blk/
contains
subroutine sub() bind(c)
end
end