Here’s a little toy example: subroutine print_present(opt, name) implicit none real, intent(in), dimension(:), optional :: opt character(len=*), intent(in) :: name print*,name, present(opt) end subroutine print_present Passing a zero-sized array seems to result in what looks li…

Bug or undefined behaviour in passing zero-sized arrays as optional argument?

Beliavsky November 16, 2021, 11:55am 3

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