— procedure: make-bit-string k initialization

Returns a newly allocated bit string of length k. If initialization is #f, the bit string is filled with 0 bits; otherwise, the bit string is filled with 1 bits.

          (make-bit-string 7 #f)                  =>  #*0000000
     

— procedure: bit-string-allocate k

Returns a newly allocated bit string of length k, but does not initialize it.

— procedure: bit-string-copy bit-string

Returns a newly allocated copy of bit-string.