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Second argument of ‘unread-string’ is optional.

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Fixes <https://bugs.gnu.org/67063>.

* doc/ref/api-io.texi (Venerable Port Interfaces): Bring unread-string
procedure documentation in line with other procedures in the section.
* libguile/ports.c (scm_unread_string): Make port argument optional.
* test-suite/tests/ports.test: Test unread-char and unread-string
without ports.
* NEWS: Update.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>
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Juliana Sims 2023-11-10 23:25:56 -05:00 • committed by Ludovic Courtès
parent 80d4055e42
commit a222503a89
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doc/ref/api-io.texi
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@ -2000,7 +2000,7 @@ The same as @code{unget-char}, except that @var{port} defaults to the
current input port, and the arguments are swapped. @xref{Textual I/O}.
@end deffn
@deffn {Scheme Procedure} unread-string str port
@deffn {Scheme Procedure} unread-string str [port]
@deffnx {C Function} scm_unread_string (str, port)
The same as @code{unget-string}, except that @var{port} defaults to the
current input port, and the arguments are swapped. @xref{Textual I/O}.