| Path : /usr/share/calc/custom/ |
|
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| Current File : //usr/share/calc/custom/register.cal |
/*
* register - set or print a custom register value
*
* Copyright (C) 2007 Landon Curt Noll
*
* Calc is open software; you can redistribute it and/or modify it under
* the terms of the version 2.1 of the GNU Lesser General Public License
* as published by the Free Software Foundation.
*
* Calc is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
* Public License for more details.
*
* A copy of version 2.1 of the GNU Lesser General Public License is
* distributed with calc under the filename COPYING-LGPL. You should have
* received a copy with calc; if not, write to Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* Under source code control: 2007/07/05 11:11:11
* File existed as early as: 2007
*
* chongo <was here> /\oo/\ http://www.isthe.com/chongo/
* Share and enjoy! :-) http://www.isthe.com/chongo/tech/comp/calc/
*/
/*
* This file is part of the custom sample calc files.
*
* NOTE: You must use a calc that was compiled with ALLOW_CUSTOM= -DCUSTOM
* and run with a -C arg.
*/
if (config("compile_custom") == 0) {
quit "calc compiled without -DCUSTOM";
} else if (config("allow_custom") == 0) {
quit "calc was run without the -D command line option";
}
define register(num)
{
local reg_max; /* number of registers */
/*
* firewall
*/
if (!isnum(num)) {
return newerror("register only works on numeric values");
}
/*
* determine register count
*/
reg_max = custom("sysinfo", "REGNUM_MAX");
/*
* determine the HALF length of a numeric value
*/
if (num < 0) {
return newerror("register number must be >= 0");
} else if (num > reg_max) {
return newerror("register number must be < REGNUM_MAX");
} else {
return custom("register", num);
}
}