fortran_notes.txt

Allocatable character array:

  subroutine hello (n,string)
    character(:),allocatable,intent(out)::string
    integer,intent(in)::n
    character(10)::helloworld="hello world"
!    string=helloworld(:n)                      ! Does not work.
!    string=(helloworld(:n))                    ! Works.
!    allocate(string, source=helloworld(:n))    ! Does not work.
     allocate(string, source=(helloworld(:n)))  ! Works.
  end subroutine hello


Allocatable arrays are automatically deallocated on exit (if not returned). Pointer arrays are not and must be manually deallocated.
https://software.intel.com/en-us/forums/intel-visual-fortran-compiler-for-windows/topic/326100


Note that 'continue' is basically a no-op. To get the desired effect of skipping to the next iteration of a loop, use 'cycle'. 'exit' is the equivalent of 'break' in C. It is also a common extension to end a program, similar to 'stop'. A name can be provided to 'cycle' or 'exit' to indicate which named construct (e.g., loop or block) should be affected.