string-fill![procedure] string-fill! string char
R5RS: Stores char in every element of the given string
and returns an unspecified value.
R6RS: In R6RS, this procedure is moved to a library
(rnrs mutable-strings (6)), which is not included
in the composite library (rnrs (6)).
[procedure] string-fill! string char [start end]
SRFI-13 extends R5RS to take optional arguments.
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