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why format procedure produce error?
From: |
Changying Li |
Subject: |
why format procedure produce error? |
Date: |
Wed, 11 Nov 2009 19:45:49 +0800 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/23.1 (gnu/linux) |
in the guile manual:
-- Scheme Procedure: format dest fmt [args...]
Write output specified by the FMT string to DEST. DEST can be an
output port, `#t' for `current-output-port' (*note Default
Ports::), a number for `current-error-port', or `#f' to return the
output as a string.
what's the meaning of NUMBER?
I want to write things to error port, so I write
(format 1 "hello")
standard input:5:1: In procedure simple-format in expression (format 1 "hello"):
standard input:5:1: Wrong type argument in position 1: 1
ABORT: (wrong-type-arg)
it work when I use (format (current-error-port) "hello")
Is there something wrong in the guile manual ?
--
Thanks & Regards
Changying Li
- why format procedure produce error?,
Changying Li <=