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
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html><head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
<title>polylib: homogenization.c Source File</title>
<link href="doxygen.css" rel="stylesheet" type="text/css">
<link href="tabs.css" rel="stylesheet" type="text/css">
</head><body>
<!-- Generated by Doxygen 1.5.6 -->
<div class="navigation" id="top">
<div class="tabs">
<ul>
<li><a href="main.html"><span>Main Page</span></a></li>
<li><a href="annotated.html"><span>Classes</span></a></li>
<li class="current"><a href="files.html"><span>Files</span></a></li>
</ul>
</div>
<h1>homogenization.c</h1><a href="homogenization_8c.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/** homogenization.c </span>
<a name="l00002"></a>00002 <span class="comment"> copyright 2004-2005 Bavo Nootaert</span>
<a name="l00003"></a>00003 <span class="comment">**/</span>
<a name="l00004"></a>00004
<a name="l00005"></a>00005 <span class="preprocessor">#include <<a class="code" href="assert_8h.html">assert.h</a>></span>
<a name="l00006"></a>00006 <span class="preprocessor">#include <stdlib.h></span>
<a name="l00007"></a>00007 <span class="preprocessor">#include <string.h></span>
<a name="l00008"></a>00008 <span class="preprocessor">#include <<a class="code" href="polylib_8h.html">polylib/polylib.h</a>></span>
<a name="l00009"></a>00009 <span class="preprocessor">#include <<a class="code" href="homogenization_8h.html">polylib/homogenization.h</a>></span>
<a name="l00010"></a>00010
<a name="l00011"></a>00011 <span class="keyword">static</span> <a class="code" href="struct__evalue.html">evalue</a> *<a class="code" href="homogenization_8c.html#f7a29828963075a67e9d7e95325ee972" title="homogenization.c copyright 2004-2005 Bavo Nootaert">dehomogenize_periodic</a>(<a class="code" href="struct__enode.html">enode</a> *en);
<a name="l00012"></a>00012 <span class="keyword">static</span> <a class="code" href="struct__evalue.html">evalue</a> *<a class="code" href="homogenization_8c.html#ca605e4d7473dda2b7499e9f7fb44f53" title="dehomogenize a polynomial.">dehomogenize_polynomial</a>(<a class="code" href="struct__enode.html">enode</a> *en);
<a name="l00013"></a>00013
<a name="l00014"></a><a class="code" href="homogenization_8h.html#fc536ef283eb21ce3e2cbcd450d72969">00014</a> <a class="code" href="structpolyhedron.html">Polyhedron</a> *<a class="code" href="homogenization_8c.html#fc536ef283eb21ce3e2cbcd450d72969">homogenize</a>(<a class="code" href="structpolyhedron.html">Polyhedron</a> *P, <span class="keywordtype">unsigned</span> <a class="code" href="verif__ehrhart_8c.html#89fd83aa168651629c012d8655635588">MAXRAYS</a>)
<a name="l00015"></a>00015 {
<a name="l00016"></a>00016 <a class="code" href="structmatrix.html">Matrix</a> M, *M2;
<a name="l00017"></a>00017 <span class="comment">/* Pretend P is a Matrix for a second */</span>
<a name="l00018"></a>00018 M.<a class="code" href="structmatrix.html#16ad614d15c6e81c0041e877b623c72d">NbRows</a> = P-><a class="code" href="structpolyhedron.html#2db05293e731089b9198d45cf027bd1c">NbConstraints</a>;
<a name="l00019"></a>00019 M.<a class="code" href="structmatrix.html#68858fd3b57684ef38bdfce13c65d182">NbColumns</a> = P-><a class="code" href="structpolyhedron.html#2a02cea8b7ba3dde415041b8b2373bc8">Dimension</a>+2;
<a name="l00020"></a>00020 M.<a class="code" href="structmatrix.html#9c294a3fd4d273963e27a0c8cd819bd5">p_Init</a> = P-><a class="code" href="structpolyhedron.html#3681618067c7bf2a0bd5e805871283f5">p_Init</a>;
<a name="l00021"></a>00021 M.<a class="code" href="structmatrix.html#2c6d840d8d911ae95c2ae4fc96f4b5ba">p</a> = P-><a class="code" href="structpolyhedron.html#b2691b8eb5d2dc43a509ac2094d2bc73">Constraint</a>;
<a name="l00022"></a>00022 M2 = <a class="code" href="Matop_8c.html#7d43e9c44b8c49cd9a542102042ad72e">AddANullColumn</a>(&M);
<a name="l00023"></a>00023 P = <a class="code" href="polyhedron_8c.html#efb77665a187d751bdd44f106b12465e" title="Given a matrix of constraints (&#39;Constraints&#39;), construct and return a polyhedron...">Constraints2Polyhedron</a>(M2, MAXRAYS);
<a name="l00024"></a>00024 <a class="code" href="matrix_8c.html#fcb312b7c12a6997cd66964ecc34e1a6">Matrix_Free</a>(M2);
<a name="l00025"></a>00025 <span class="keywordflow">return</span> P;
<a name="l00026"></a>00026 }
<a name="l00027"></a>00027 <span class="comment"></span>
<a name="l00028"></a>00028 <span class="comment">/** dehomogenize an evalue. The last parameter (nb_param) is replaced by 1.</span>
<a name="l00029"></a>00029 <span class="comment"> This function is mutually recursive with dehomogenize_enode.</span>
<a name="l00030"></a>00030 <span class="comment">**/</span>
<a name="l00031"></a><a class="code" href="homogenization_8h.html#ad8cd6181d26eb3f13171462ee30b932">00031</a> <span class="keywordtype">void</span> <a class="code" href="homogenization_8c.html#ad8cd6181d26eb3f13171462ee30b932" title="dehomogenize an evalue.">dehomogenize_evalue</a>(<a class="code" href="struct__evalue.html">evalue</a> *ep, <span class="keywordtype">int</span> nb_param){
<a name="l00032"></a>00032 <a class="code" href="struct__evalue.html">evalue</a> *w;
<a name="l00033"></a>00033 <span class="comment"></span>
<a name="l00034"></a>00034 <span class="comment"> /** cannot dehomogenize rationals **/</span>
<a name="l00035"></a>00035 <span class="keywordflow">if</span> (<a class="code" href="source_2arith_2arithmetique_8h.html#827532f2140ae2aa96e46baebae09723">value_zero_p</a>(ep-><a class="code" href="struct__evalue.html#e4aada7b06d44dcbf9f4d2daf1834e29">d</a>)){
<a name="l00036"></a>00036 <span class="comment"></span>
<a name="l00037"></a>00037 <span class="comment"> /** we need to replace the last parameter **/</span>
<a name="l00038"></a>00038 <span class="keywordflow">if</span> (ep->x.p->pos == nb_param){
<a name="l00039"></a>00039 <span class="keywordflow">if</span> (ep->x.p->type == <a class="code" href="types_8h.html#01e5f42033d0f34c1a182a25a7409fed3cb930eb7594d2236ab4fc6dd622c207">periodic</a> && ep->x.p->size > 1){
<a name="l00040"></a>00040 w = <a class="code" href="homogenization_8c.html#f7a29828963075a67e9d7e95325ee972" title="homogenization.c copyright 2004-2005 Bavo Nootaert">dehomogenize_periodic</a>(ep->x.p);
<a name="l00041"></a>00041 }
<a name="l00042"></a>00042 <span class="keywordflow">else</span>{
<a name="l00043"></a>00043 w = <a class="code" href="homogenization_8c.html#ca605e4d7473dda2b7499e9f7fb44f53" title="dehomogenize a polynomial.">dehomogenize_polynomial</a>(ep->x.p);
<a name="l00044"></a>00044 }
<a name="l00045"></a>00045 <a class="code" href="ehrhart_8c.html#96434ed8279f7999773fa3343cfe98b8" title="releases all memory referenced by e.">free_evalue_refs</a>(ep);
<a name="l00046"></a>00046 memcpy(ep, w, <span class="keyword">sizeof</span>(<a class="code" href="struct__evalue.html">evalue</a>));
<a name="l00047"></a>00047 free(w);
<a name="l00048"></a>00048 }
<a name="l00049"></a>00049 <span class="keywordflow">else</span>{<span class="comment"></span>
<a name="l00050"></a>00050 <span class="comment"> /** Not the last parameter. Recurse **/</span>
<a name="l00051"></a>00051 <a class="code" href="homogenization_8c.html#f91fee5e1af870b385e88405cf116652" title="dehomogenize all evalues in an enode.">dehomogenize_enode</a>(ep->x.p, nb_param);
<a name="l00052"></a>00052 }
<a name="l00053"></a>00053
<a name="l00054"></a>00054 }
<a name="l00055"></a>00055 }
<a name="l00056"></a>00056 <span class="comment"></span>
<a name="l00057"></a>00057 <span class="comment">/** dehomogenize all evalues in an enode. </span>
<a name="l00058"></a>00058 <span class="comment"> This function is mutually recursive with dehomogenize_evalue.</span>
<a name="l00059"></a>00059 <span class="comment">**/</span>
<a name="l00060"></a><a class="code" href="homogenization_8h.html#f91fee5e1af870b385e88405cf116652">00060</a> <span class="keywordtype">void</span> <a class="code" href="homogenization_8c.html#f91fee5e1af870b385e88405cf116652" title="dehomogenize all evalues in an enode.">dehomogenize_enode</a>(<a class="code" href="struct__enode.html">enode</a> *<a class="code" href="vector_8c.html#a45b2e3dcf291527c5aedc420819adfc">p</a>, <span class="keywordtype">int</span> nb_param){
<a name="l00061"></a>00061 <a class="code" href="struct__evalue.html">evalue</a> *temp;
<a name="l00062"></a>00062 <span class="keywordtype">int</span> i;
<a name="l00063"></a>00063 <span class="keywordflow">for</span> (i = 0; i < p-><a class="code" href="struct__enode.html#ba9a89a7893638f2ad9d77c9d0247797">size</a>; i++){
<a name="l00064"></a>00064 <a class="code" href="homogenization_8c.html#ad8cd6181d26eb3f13171462ee30b932" title="dehomogenize an evalue.">dehomogenize_evalue</a>(&p-><a class="code" href="struct__enode.html#215794f8b8ab87573bd46f14a8e916d4">arr</a>[i], nb_param);
<a name="l00065"></a>00065 }
<a name="l00066"></a>00066 }
<a name="l00067"></a>00067
<a name="l00068"></a>00068 <span class="comment"></span>
<a name="l00069"></a>00069 <span class="comment">/** return the 1st element of an enode representing a periodic **/</span>
<a name="l00070"></a><a class="code" href="homogenization_8c.html#f7a29828963075a67e9d7e95325ee972">00070</a> <span class="keyword">static</span> <a class="code" href="struct__evalue.html">evalue</a> *<a class="code" href="homogenization_8c.html#f7a29828963075a67e9d7e95325ee972" title="homogenization.c copyright 2004-2005 Bavo Nootaert">dehomogenize_periodic</a>(<a class="code" href="struct__enode.html">enode</a> *en){
<a name="l00071"></a>00071 <a class="code" href="struct__evalue.html">evalue</a> *w;
<a name="l00072"></a>00072 <a class="code" href="assert_8h.html#07d17d6d5d1074c0969bc5d3c3d1d84a">assert</a>(en-><a class="code" href="struct__enode.html#36787a943f0f24530a8934c48a69d282">type</a> == <a class="code" href="types_8h.html#01e5f42033d0f34c1a182a25a7409fed3cb930eb7594d2236ab4fc6dd622c207">periodic</a>);
<a name="l00073"></a>00073 <a class="code" href="assert_8h.html#07d17d6d5d1074c0969bc5d3c3d1d84a">assert</a>(en-><a class="code" href="struct__enode.html#ba9a89a7893638f2ad9d77c9d0247797">size</a> > 1);
<a name="l00074"></a>00074 <a class="code" href="assert_8h.html#07d17d6d5d1074c0969bc5d3c3d1d84a">assert</a>(<a class="code" href="source_2arith_2arithmetique_8h.html#47d32925340d2dc99ef2d4215080a60d">value_notzero_p</a>(en-><a class="code" href="struct__enode.html#215794f8b8ab87573bd46f14a8e916d4">arr</a>[1].<a class="code" href="struct__evalue.html#e4aada7b06d44dcbf9f4d2daf1834e29">d</a>));
<a name="l00075"></a>00075 w = (<a class="code" href="struct__evalue.html">evalue</a>*)malloc(<span class="keyword">sizeof</span>(<a class="code" href="struct__evalue.html">evalue</a>));
<a name="l00076"></a>00076 <a class="code" href="source_2arith_2arithmetique_8h.html#f71a2ca0294a19cff0cdcbdcc052ee27">value_init</a>(w-><a class="code" href="struct__evalue.html#e4aada7b06d44dcbf9f4d2daf1834e29">d</a>); <a class="code" href="source_2arith_2arithmetique_8h.html#f71a2ca0294a19cff0cdcbdcc052ee27">value_init</a>(w->x.n);
<a name="l00077"></a>00077 <a class="code" href="source_2arith_2arithmetique_8h.html#864613888dc46f15679aa4f63e468f89">value_assign</a>(w-><a class="code" href="struct__evalue.html#e4aada7b06d44dcbf9f4d2daf1834e29">d</a>, en-><a class="code" href="struct__enode.html#215794f8b8ab87573bd46f14a8e916d4">arr</a>[1].<a class="code" href="struct__evalue.html#e4aada7b06d44dcbf9f4d2daf1834e29">d</a>); <a class="code" href="source_2arith_2arithmetique_8h.html#864613888dc46f15679aa4f63e468f89">value_assign</a>(w->x.n, en-><a class="code" href="struct__enode.html#215794f8b8ab87573bd46f14a8e916d4">arr</a>[1].x.n);
<a name="l00078"></a>00078 <span class="keywordflow">return</span> w;
<a name="l00079"></a>00079 }
<a name="l00080"></a>00080 <span class="comment"></span>
<a name="l00081"></a>00081 <span class="comment">/** dehomogenize a polynomial. Assume the enode contains a polynomial in </span>
<a name="l00082"></a>00082 <span class="comment"> one variable, the homogenous parameter. </span>
<a name="l00083"></a>00083 <span class="comment"> Returns an new evalue, representing a rational.</span>
<a name="l00084"></a>00084 <span class="comment"> **/</span>
<a name="l00085"></a><a class="code" href="homogenization_8c.html#ca605e4d7473dda2b7499e9f7fb44f53">00085</a> <span class="keyword">static</span> <a class="code" href="struct__evalue.html">evalue</a> *<a class="code" href="homogenization_8c.html#ca605e4d7473dda2b7499e9f7fb44f53" title="dehomogenize a polynomial.">dehomogenize_polynomial</a>(<a class="code" href="struct__enode.html">enode</a> *en){
<a name="l00086"></a>00086 <a class="code" href="struct__evalue.html">evalue</a> *enn;
<a name="l00087"></a>00087 <a class="code" href="struct__evalue.html">evalue</a> *ev;
<a name="l00088"></a>00088 <span class="keywordtype">int</span> i;
<a name="l00089"></a>00089 <span class="keywordtype">double</span> som;
<a name="l00090"></a>00090 Value num, den, gcd, f1, f2;
<a name="l00091"></a>00091 <a class="code" href="assert_8h.html#07d17d6d5d1074c0969bc5d3c3d1d84a">assert</a>(en-><a class="code" href="struct__enode.html#36787a943f0f24530a8934c48a69d282">type</a> == <a class="code" href="types_8h.html#01e5f42033d0f34c1a182a25a7409feda486649798da33c51389df14eaccd3ce">polynomial</a>);
<a name="l00092"></a>00092 som = 0;
<a name="l00093"></a>00093 <a class="code" href="source_2arith_2arithmetique_8h.html#f71a2ca0294a19cff0cdcbdcc052ee27">value_init</a>(num); <a class="code" href="source_2arith_2arithmetique_8h.html#f71a2ca0294a19cff0cdcbdcc052ee27">value_init</a>(den); <a class="code" href="source_2arith_2arithmetique_8h.html#f71a2ca0294a19cff0cdcbdcc052ee27">value_init</a>(gcd);
<a name="l00094"></a>00094 <a class="code" href="source_2arith_2arithmetique_8h.html#f71a2ca0294a19cff0cdcbdcc052ee27">value_init</a>(f1); <a class="code" href="source_2arith_2arithmetique_8h.html#f71a2ca0294a19cff0cdcbdcc052ee27">value_init</a>(f2);
<a name="l00095"></a>00095 <a class="code" href="source_2arith_2arithmetique_8h.html#8cc56567a4a29271559ac0fd5f6c5bfa">value_set_si</a>(den, 1);
<a name="l00096"></a>00096 <span class="comment"></span>
<a name="l00097"></a>00097 <span class="comment"> /** enumerate over all coefficients (which are either periodic or rational,</span>
<a name="l00098"></a>00098 <span class="comment"> but not polynomial) **/</span>
<a name="l00099"></a>00099 <span class="keywordflow">for</span> (i = 0; i < en-><a class="code" href="struct__enode.html#ba9a89a7893638f2ad9d77c9d0247797">size</a>; i++){
<a name="l00100"></a>00100 <span class="keywordflow">if</span> (<a class="code" href="source_2arith_2arithmetique_8h.html#827532f2140ae2aa96e46baebae09723">value_zero_p</a>(en-><a class="code" href="struct__enode.html#215794f8b8ab87573bd46f14a8e916d4">arr</a>[i].<a class="code" href="struct__evalue.html#e4aada7b06d44dcbf9f4d2daf1834e29">d</a>)){
<a name="l00101"></a>00101 <span class="keywordflow">if</span> (en-><a class="code" href="struct__enode.html#215794f8b8ab87573bd46f14a8e916d4">arr</a>[i].x.p->size > 1)
<a name="l00102"></a>00102 ev = &en-><a class="code" href="struct__enode.html#215794f8b8ab87573bd46f14a8e916d4">arr</a>[i].x.p->arr[1];
<a name="l00103"></a>00103 <span class="keywordflow">else</span>
<a name="l00104"></a>00104 ev = &en-><a class="code" href="struct__enode.html#215794f8b8ab87573bd46f14a8e916d4">arr</a>[i].x.p->arr[0];
<a name="l00105"></a>00105 }
<a name="l00106"></a>00106 <span class="keywordflow">else</span>{
<a name="l00107"></a>00107 ev = &en-><a class="code" href="struct__enode.html#215794f8b8ab87573bd46f14a8e916d4">arr</a>[i];
<a name="l00108"></a>00108 }<span class="comment"></span>
<a name="l00109"></a>00109 <span class="comment"> /** add ev (fraction) to num/den **/</span>
<a name="l00110"></a>00110 <a class="code" href="source_2arith_2arithmetique_8h.html#c9986d34264874727344f666079e2294">value_multiply</a>(f1, den, ev->x.n);
<a name="l00111"></a>00111 <a class="code" href="source_2arith_2arithmetique_8h.html#c9986d34264874727344f666079e2294">value_multiply</a>(f2, num, ev-><a class="code" href="struct__evalue.html#e4aada7b06d44dcbf9f4d2daf1834e29">d</a>);
<a name="l00112"></a>00112 <a class="code" href="source_2arith_2arithmetique_8h.html#ea216a0e750144f0e6eb9b0a82583739">value_addto</a>(num, f1, f2);
<a name="l00113"></a>00113 <a class="code" href="source_2arith_2arithmetique_8h.html#c9986d34264874727344f666079e2294">value_multiply</a>(den, den, ev-><a class="code" href="struct__evalue.html#e4aada7b06d44dcbf9f4d2daf1834e29">d</a>);
<a name="l00114"></a>00114 }
<a name="l00115"></a>00115 <span class="comment"></span>
<a name="l00116"></a>00116 <span class="comment"> /** simplify num/den **/</span>
<a name="l00117"></a>00117 <a class="code" href="source_2arith_2arithmetique_8h.html#50a34e78517e58cd1c2494a99be1e62b">value_gcd</a>(gcd, num, den);
<a name="l00118"></a>00118 <a class="code" href="source_2arith_2arithmetique_8h.html#4b01d50506e0c7691b69d57a87280f5d">value_divexact</a>(num, num, gcd);
<a name="l00119"></a>00119 <a class="code" href="source_2arith_2arithmetique_8h.html#4b01d50506e0c7691b69d57a87280f5d">value_divexact</a>(den, den, gcd);
<a name="l00120"></a>00120 <span class="comment"></span>
<a name="l00121"></a>00121 <span class="comment"> /** create new evalue representing num/den**/</span>
<a name="l00122"></a>00122 enn = (<a class="code" href="struct__evalue.html">evalue</a>*)malloc(<span class="keyword">sizeof</span>(<a class="code" href="struct__evalue.html">evalue</a>));
<a name="l00123"></a>00123 <a class="code" href="source_2arith_2arithmetique_8h.html#f71a2ca0294a19cff0cdcbdcc052ee27">value_init</a>(enn-><a class="code" href="struct__evalue.html#e4aada7b06d44dcbf9f4d2daf1834e29">d</a>); <a class="code" href="source_2arith_2arithmetique_8h.html#f71a2ca0294a19cff0cdcbdcc052ee27">value_init</a>(enn->x.n);
<a name="l00124"></a>00124 <a class="code" href="source_2arith_2arithmetique_8h.html#864613888dc46f15679aa4f63e468f89">value_assign</a>(enn-><a class="code" href="struct__evalue.html#e4aada7b06d44dcbf9f4d2daf1834e29">d</a>, den);
<a name="l00125"></a>00125 <a class="code" href="source_2arith_2arithmetique_8h.html#864613888dc46f15679aa4f63e468f89">value_assign</a>(enn->x.n, num);
<a name="l00126"></a>00126 <span class="comment"></span>
<a name="l00127"></a>00127 <span class="comment"> /** cleanup **/</span>
<a name="l00128"></a>00128 <a class="code" href="source_2arith_2arithmetique_8h.html#b9b282921e85a0527d462d331533d619">value_clear</a>(gcd);
<a name="l00129"></a>00129 <a class="code" href="source_2arith_2arithmetique_8h.html#b9b282921e85a0527d462d331533d619">value_clear</a>(f1); <a class="code" href="source_2arith_2arithmetique_8h.html#b9b282921e85a0527d462d331533d619">value_clear</a>(f2);
<a name="l00130"></a>00130 <a class="code" href="source_2arith_2arithmetique_8h.html#b9b282921e85a0527d462d331533d619">value_clear</a>(num); <a class="code" href="source_2arith_2arithmetique_8h.html#b9b282921e85a0527d462d331533d619">value_clear</a>(den);
<a name="l00131"></a>00131
<a name="l00132"></a>00132 <span class="keywordflow">return</span> enn;
<a name="l00133"></a>00133 }
<a name="l00134"></a>00134 <span class="comment"></span>
<a name="l00135"></a>00135 <span class="comment">/** dehomogenize a polyhedron. Assume the polyhedron p is homogenous.</span>
<a name="l00136"></a>00136 <span class="comment"> Returns a new polyhedron.</span>
<a name="l00137"></a>00137 <span class="comment">**/</span>
<a name="l00138"></a><a class="code" href="homogenization_8h.html#bab952bcd8adf0cc6af6a70823648266">00138</a> <a class="code" href="structpolyhedron.html">Polyhedron</a> *<a class="code" href="homogenization_8c.html#bab952bcd8adf0cc6af6a70823648266" title="dehomogenize a polyhedron.">dehomogenize_polyhedron</a>(<a class="code" href="structpolyhedron.html">Polyhedron</a> *<a class="code" href="vector_8c.html#a45b2e3dcf291527c5aedc420819adfc">p</a>, <span class="keywordtype">int</span> <a class="code" href="testCompressParms_8c.html#508eb31b6faa4939e1c32adaef41b8c8">maxRays</a>){
<a name="l00139"></a>00139 <a class="code" href="structmatrix.html">Matrix</a> *constr, *constrh;
<a name="l00140"></a>00140 <a class="code" href="structpolyhedron.html">Polyhedron</a> *ph;
<a name="l00141"></a>00141 <span class="keywordtype">int</span> i;
<a name="l00142"></a>00142 constr = <a class="code" href="polyhedron_8c.html#69417a994cd682d0c391ecff6d223cd2">Polyhedron2Constraints</a>(p);
<a name="l00143"></a>00143 constrh = <a class="code" href="matrix_8c.html#c0b29e1d99a2823ad00b5f2157879d80">Matrix_Alloc</a>(constr-><a class="code" href="structmatrix.html#16ad614d15c6e81c0041e877b623c72d">NbRows</a>, constr-><a class="code" href="structmatrix.html#68858fd3b57684ef38bdfce13c65d182">NbColumns</a> - 1);
<a name="l00144"></a>00144 <span class="keywordflow">for</span> (i = 0; i < constr-><a class="code" href="structmatrix.html#16ad614d15c6e81c0041e877b623c72d">NbRows</a>; i++){
<a name="l00145"></a>00145 <a class="code" href="vector_8c.html#b6eca9ad03a2f4a60dd79182289e0e0b">Vector_Copy</a>(constr-><a class="code" href="structmatrix.html#2c6d840d8d911ae95c2ae4fc96f4b5ba">p</a>[i], constrh-><a class="code" href="structmatrix.html#2c6d840d8d911ae95c2ae4fc96f4b5ba">p</a>[i], constr-><a class="code" href="structmatrix.html#68858fd3b57684ef38bdfce13c65d182">NbColumns</a> - 1);
<a name="l00146"></a>00146 }
<a name="l00147"></a>00147 ph = <a class="code" href="polyhedron_8c.html#efb77665a187d751bdd44f106b12465e" title="Given a matrix of constraints (&#39;Constraints&#39;), construct and return a polyhedron...">Constraints2Polyhedron</a>(constrh, maxRays);
<a name="l00148"></a>00148 <a class="code" href="matrix_8c.html#fcb312b7c12a6997cd66964ecc34e1a6">Matrix_Free</a>(constr); <a class="code" href="matrix_8c.html#fcb312b7c12a6997cd66964ecc34e1a6">Matrix_Free</a>(constrh);
<a name="l00149"></a>00149 <span class="keywordflow">return</span> ph;
<a name="l00150"></a>00150 }
<a name="l00151"></a>00151 <span class="comment"></span>
<a name="l00152"></a>00152 <span class="comment">/** dehomogenize an enumeration. Replaces each validity domain and </span>
<a name="l00153"></a>00153 <span class="comment"> Ehrhart polynomial in the Enumeration en with the dehomogenized form.</span>
<a name="l00154"></a>00154 <span class="comment"> **/</span>
<a name="l00155"></a><a class="code" href="homogenization_8h.html#f6ed6707fca416fc2a848a43db72e3a1">00155</a> <span class="keywordtype">void</span> <a class="code" href="homogenization_8c.html#06456b946001b8ddaf7203de4856abd7" title="dehomogenize an enumeration.">dehomogenize_enumeration</a>(<a class="code" href="struct__enumeration.html">Enumeration</a>* en, <span class="keywordtype">int</span> nb_params, <span class="keywordtype">int</span> <a class="code" href="testCompressParms_8c.html#508eb31b6faa4939e1c32adaef41b8c8">maxRays</a>){
<a name="l00156"></a>00156 <a class="code" href="struct__enumeration.html">Enumeration</a> *en2;
<a name="l00157"></a>00157 <a class="code" href="structpolyhedron.html">Polyhedron</a> *vd;
<a name="l00158"></a>00158 <span class="keywordflow">for</span> (en2 = en; en2; en2 = en2-><a class="code" href="struct__enumeration.html#d2fd42474e015c9abc6aea0e2bea08b8">next</a>) {
<a name="l00159"></a>00159 vd = <a class="code" href="homogenization_8c.html#bab952bcd8adf0cc6af6a70823648266" title="dehomogenize a polyhedron.">dehomogenize_polyhedron</a>(en2-><a class="code" href="struct__enumeration.html#57e35419d63ab12898542ef58d8decac">ValidityDomain</a>, maxRays);
<a name="l00160"></a>00160 <a class="code" href="polyhedron_8c.html#4ae97b9794e3a616f1d38c68e6515cc3">Polyhedron_Free</a>(en2-><a class="code" href="struct__enumeration.html#57e35419d63ab12898542ef58d8decac">ValidityDomain</a>);
<a name="l00161"></a>00161 en2-><a class="code" href="struct__enumeration.html#57e35419d63ab12898542ef58d8decac">ValidityDomain</a> = vd;
<a name="l00162"></a>00162 <a class="code" href="homogenization_8c.html#ad8cd6181d26eb3f13171462ee30b932" title="dehomogenize an evalue.">dehomogenize_evalue</a>(&en2-><a class="code" href="struct__enumeration.html#a499b062a10ce16356e9b52d25cae0d9">EP</a>, nb_params);
<a name="l00163"></a>00163 }
<a name="l00164"></a>00164 }
</pre></div></div>
<hr size="1"><address style="text-align: right;"><small>Generated on Tue Sep 15 18:33:59 2009 for polylib by
<a href="http://www.doxygen.org/index.html">
<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.6 </small></address>
</body>
</html>
|
