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Edit File: foo_mod.f90
module mod contains subroutine sum(x, res) implicit none real, intent(in) :: x(:) real, intent(out) :: res integer :: i !print *, "sum: size(x) = ", size(x) res = 0.0 do i = 1, size(x) res = res + x(i) enddo end subroutine sum function fsum(x) result (res) implicit none real, intent(in) :: x(:) real :: res integer :: i !print *, "fsum: size(x) = ", size(x) res = 0.0 do i = 1, size(x) res = res + x(i) enddo end function fsum end module mod