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
|
/*
subgroups.cc, copyright (c) 2006 by Vincent Fourmond:
The implementations for the subgroups (parentheses).
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 General Public License for more details (in the COPYING file).
*/
#include <calc_internals.hh>
namespace SCalc {
std::string Subgroup::pretty_print()
{
std::string str;
str += "(";
str += sub->pretty_print();
str += ")";
return str;
}
Expression * Subgroup::simplify()
{
Expression * s = sub->simplify();
if(s->is_const())
{
double val = s->evaluate(NULL, NULL);
delete s;
return new Const(session(), val);
}
return new Subgroup(session(), s);
}
};
|
