1 : /* GRAPHITE2 LICENSING
2 :
3 : Copyright 2010, SIL International
4 : All rights reserved.
5 :
6 : This library is free software; you can redistribute it and/or modify
7 : it under the terms of the GNU Lesser General Public License as published
8 : by the Free Software Foundation; either version 2.1 of License, or
9 : (at your option) any later version.
10 :
11 : This program is distributed in the hope that it will be useful,
12 : but WITHOUT ANY WARRANTY; without even the implied warranty of
13 : MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 : Lesser General Public License for more details.
15 :
16 : You should also have received a copy of the GNU Lesser General Public
17 : License along with this library in the file named "LICENSE".
18 : If not, write to the Free Software Foundation, 51 Franklin Street,
19 : Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
20 : internet at http://www.fsf.org/licenses/lgpl.html.
21 :
22 : Alternatively, the contents of this file may be used under the terms of the
23 : Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
24 : License, as published by the Free Software Foundation, either version 2
25 : of the License or (at your option) any later version.
26 : */
27 : #pragma once
28 : #include <cstring>
29 : #include <cassert>
30 : #include "inc/Main.h"
31 : #include "inc/List.h"
32 :
33 : namespace graphite2 {
34 :
35 : class FeatureRef;
36 : class FeatureMap;
37 :
38 : class FeatureVal : public Vector<uint32>
39 0 : {
40 : public:
41 : uint32 maskedOr(const FeatureVal &other, const FeatureVal &mask) {
42 : uint32 len = size() ;
43 : if (other.size()<len) len = other.size(); //defensive
44 : if (mask.size()<len) len = mask.size(); //defensive
45 : for (uint32 i = 0; i < len; i++)
46 : if (mask[i]) operator[](i) = (operator[](i) & ~mask[i]) | (other[i] & mask[i]);
47 : return len;
48 : }
49 :
50 0 : FeatureVal() : m_pMap(0) { }
51 0 : FeatureVal(int num, const FeatureMap & pMap) : Vector<uint32>(num), m_pMap(&pMap) {}
52 0 : FeatureVal(const FeatureVal & rhs) : Vector<uint32>(rhs), m_pMap(rhs.m_pMap) {}
53 :
54 : bool operator ==(const FeatureVal & b) const
55 : {
56 : size_t n = size();
57 : if (n != b.size()) return false;
58 :
59 : for(const_iterator l = begin(), r = b.begin(); n && *l == *r; --n, ++l, ++r);
60 :
61 : return n == 0;
62 : }
63 :
64 0 : CLASS_NEW_DELETE
65 : private:
66 : friend class FeatureRef; //so that FeatureRefs can manipulate m_vec directly
67 : const FeatureMap* m_pMap;
68 : };
69 :
70 : typedef FeatureVal Features;
71 :
72 : } // namespace graphite2
73 :
74 :
75 0 : struct gr_feature_val : public graphite2::FeatureVal {};
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