Mutable strings

The string-set! procedure provided by the (rnrs mutable-strings (6)) library allows mutating the characters of a string in-place.

Summary

Mutable strings	The string-set!
(rnrs mutable-strings (6))
Functions
string-set!	See http://www.r6rs.org/final/html/r6rs-lib/r6rs-lib-Z-H-19.html#node_idx_1280
string-fill!	See http://www.r6rs.org/final/html/r6rs-lib/r6rs-lib-Z-H-19.html#node_idx_1282

(rnrs mutable-strings (6))

Summary

Functions
string-set!	See http://www.r6rs.org/final/html/r6rs-lib/r6rs-lib-Z-H-19.html#node_idx_1280
string-fill!	See http://www.r6rs.org/final/html/r6rs-lib/r6rs-lib-Z-H-19.html#node_idx_1282

(string-set! string k char)

(string-fill! string char)