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! { dg-do run }
! { dg-additional-sources bind_c_usage_16_c.c }
!
! PR fortran/34079
!
! Ensure character-returning, bind(C) function work.
!
module mod
use iso_c_binding
implicit none
contains
function bar(x) bind(c, name="returnA")
character(len=1,kind=c_char) :: bar, x
bar = x
bar = 'A'
end function bar
function foo() bind(c, name="returnB")
character(len=1,kind=c_char) :: foo
foo = 'B'
end function foo
end module mod
subroutine test() bind(c)
use mod
implicit none
character(len=1,kind=c_char) :: a
character(len=3,kind=c_char) :: b
character(len=1,kind=c_char) :: c(3)
character(len=3,kind=c_char) :: d(3)
integer :: i
a = 'z'
b = 'fffff'
c = 'h'
d = 'uuuuu'
a = bar('x')
if (a /= 'A') STOP 1
b = bar('y')
if (b /= 'A' .or. iachar(b(2:2))/=32 .or. iachar(b(3:3))/=32) STOP 2
c = bar('x')
if (any(c /= 'A')) STOP 3
d = bar('y')
if (any(d /= 'A')) STOP 4
a = foo()
if (a /= 'B') STOP 5
b = foo()
if (b /= 'B') STOP 6
c = foo()
if (any(c /= 'B')) STOP 7
d = foo()
if (any(d /= 'B')) STOP 8
do i = 1,3
if(iachar(d(i)(2:2)) /=32 .or. iachar(d(i)(3:3)) /= 32) STOP 9
end do
end subroutine
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