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module interface_14_data
implicit none
public data_t
type data_t
integer :: x
end type
end module
program interface_14
use interface_14_data, only: data_t
implicit none
integer :: x
x = get_x_from_data(return_x_from_data)
print *, x
if (x /= 100) error stop
contains
function return_x_from_data(d)
type(data_t), intent(inout) :: d
integer :: return_x_from_data
return_x_from_data = d%x
end function
function get_x_from_data(R)
interface
function R(d)
use interface_14_data
implicit none
type(data_t), intent(inout) :: d
integer :: R
end function
end interface
integer :: get_x_from_data
type(data_t) :: d
d%x = 100
get_x_from_data = R(d)
end function
end program
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