### `++fil`

Fill bloqstream

Produces an atom by repeating `c` for `b` blocks of size `a`.

Accepts
-------

`a` is a block size (see `++bloq`).

`b` is an atom.

`c` is an atom.

Produces
--------

An atom.

Source
------

    ++  fil                                                 ::  fill bloqstream
      |=  {a/bloq b/@u c/@}
      =+  n=0
      =+  d=c
      |-  ^-  @
      ?:  =(n b)
        (rsh a 1 d)
      $(d (add c (lsh a 1 d)), n +(n))


Examples
--------

    ~zod/try=> `@t`(fil 3 5 %a)
    'aaaaa'
    ~zod/try=> `@t`(fil 5 10 %ceeb)
    'ceebceebceebceebceebceebceebceebceebceeb'
    ~zod/try=> `@t`(fil 4 10 %eced)
    'ʇʇʇʇʇʇʇʇʇʇed'
    ~zod/try=> `@tas`(fil 4 10 %bf)
    %bfbfbfbfbfbfbfbfbfbf



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