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55 lines
1.6 KiB
Plaintext
55 lines
1.6 KiB
Plaintext
#!/usr/local/src/cmd/calc/calc -q -f
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/*
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* plus - add two or more arguments together
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*
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* Copyright (C) 1999-2007 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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* 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
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*
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* @(#) $Revision: 29.4 $
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* @(#) $Id: plus.calc,v 29.4 2007/02/07 00:34:04 chongo Exp $
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* @(#) $Source: /usr/local/src/cmd/calc/cscript/RCS/plus.calc,v $
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*
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* Under source code control: 1999/11/29 10:22:37
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* File existed as early as: 1999
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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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*
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* usage:
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* plus val ...
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*/
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/*
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* parse args
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*/
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if (argv() < 2) {
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/* we include the name of this script in the error message */
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fprintf(files(2), "usage: %s value ...\n", config("program"));
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abort "not enough args";
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}
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/*
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* print the sum of the args
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*
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* Since args are strings, we must eval them before using them numerically.
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*/
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sum = 0;
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for (i=1; i < argv(); ++i) {
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sum += eval(argv(i));
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}
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print sum;
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