[ sisc-Bugs-1320475 ] bulk character i/o breaks immutability

Bugs item #1320475, was opened at 2005-10-09 16:23
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Category: None
Group: None
Status: Open
Resolution: None
Priority: 6
Submitted By: Matthias Radestock (mradestock)
Assigned to: Nobody/Anonymous (nobody)
Summary: bulk character i/o breaks immutability

Initial Comment:
The |read-string| bulk character i/o procedure does not
respect immutability:

SISC (1.12.0-alpha) - main
#;> (define s "foo")
#;> (string-set! s 0 #\a)
Error in string-set!: string is immutable.
console:2:1: <from call to string-set!>
#;> (import string-io)
#;> (with-input-from-string "a" (lambda () (read-string
s 0 1)))
1
#;> (write s)
"aoo"


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