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module test_int
implicit none
contains
subroutine foo(f, arg2)
interface
function f(x)
real, intent(in) :: x
real :: f
end function
end interface
integer, intent(in) :: arg2
real :: y
y = 1.
print*, f(y)
end subroutine foo
function foo2(f, g, h) result(arg3)
interface
function f(x) result(z)
real, intent(in) :: x
real :: z
end function
function g(x) result(z)
real, intent(in) :: x
real :: z
end function
end interface
interface
function h(x) result(z)
real, intent(in) :: x
real :: z
end function h
end interface
real :: y
real :: arg3
y = 1.
arg3 = f(g(h(y)))
end function foo2
end module test_int
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