/usr/share/calc/infinities.cal is in apcalc-common 2.12.5.0-1build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 | /*
* infinities - handle infinities symbolically, a little helper file
*
* Copyright (C) 2013 Christoph Zurnieden
*
* 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.
*/
static resource_debug_level;
resource_debug_level = config("resource_debug", 0);
define isinfinite(x)
{
if (isstr(x)) {
if (strncmp(x, "cinf", 4) == 0
|| strncmp(x, "pinf", 4) == 0 || strncmp(x, "ninf", 4) == 0)
return 1;
}
return 0;
}
define iscinf(x)
{
if (isstr(x)) {
if (strncmp(x, "cinf", 4) == 0)
return 1;
}
return 0;
}
define ispinf(x)
{
if (isstr(x)) {
if (strncmp(x, "pinf", 4) == 0)
return 1;
}
return 0;
}
define isninf(x)
{
if (isstr(x)) {
if (strncmp(x, "ninf", 4) == 0)
return 1;
}
return 0;
}
define cinf()
{
return "cinf";
}
define ninf()
{
return "ninf";
}
define pinf()
{
return "pinf";
}
config("resource_debug", resource_debug_level),;
if (config("resource_debug") & 3) {
print "isinfinite(x)";
print "iscinf(x)";
print "ispinf(x)";
print "isninf(x)";
print "cinf()";
print "ninf()";
print "pinf()";
}
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