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83 lines
2.2 KiB
Plaintext
83 lines
2.2 KiB
Plaintext
NAME
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strerror - returns a string describing an error value
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SYNOPSIS
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strerror([x])
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TYPES
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x error-value or integer in [0, 32767], defaults to errno()
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return string
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DESCRIPTION
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If x is the error-value with index n, strerror(x) and strerror(n)
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return one of:
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a system-generated message,
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a calc-generated description,
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a user-defined description created by newerror(str),
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the string "Error n",
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where, in the last form, n is represented decimally.
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EXAMPLE
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System error messages may be different for different systems.
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; errmax(errcount()+3)
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0
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; strerror(2)
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"No such file or directory"
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; x = 3 * ("a" + "b")
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; print strerror(x)
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Bad arguments for +
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; a = newerror("alpha")
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; print strerror(a)
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alpha
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; print strerror(999)
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Error 999
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; a = 1/0
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; print strerror()
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Division by zero
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LIMITS
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none
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LINK LIBRARY
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none
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SEE ALSO
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strcat, strcpy, strlen, strncmp, strncpy, strpos,
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strprintf, strscan, strscanf, substr,
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errcount, errmax, error, iserror, errno, newerror, errorcodes,
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stoponerror
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## Copyright (C) 1999-2006 Landon Curt Noll
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##
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## Calc is open software; you can redistribute it and/or modify it under
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## the terms of the version 2.1 of the GNU Lesser General Public License
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## as published by the Free Software Foundation.
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##
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## Calc is distributed in the hope that it will be useful, but WITHOUT
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## ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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## or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
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## Public License for more details.
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##
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## A copy of version 2.1 of the GNU Lesser General Public License is
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## distributed with calc under the filename COPYING-LGPL. You should have
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## received a copy with calc; if not, write to Free Software Foundation, Inc.
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## 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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##
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## @(#) $Revision: 30.1 $
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## @(#) $Id: strerror,v 30.1 2007/03/16 11:10:42 chongo Exp $
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## @(#) $Source: /usr/local/src/cmd/calc/help/RCS/strerror,v $
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##
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## Under source code control: 1996/04/30 03:05:18
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## File existed as early as: 1996
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##
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## chongo <was here> /\oo/\ http://www.isthe.com/chongo/
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## Share and enjoy! :-) http://www.isthe.com/chongo/tech/comp/calc/
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