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
|
/* projection.c: Test program to call the cdd library cddlib
written by Komei Fukuda, fukuda@ifor.math.ethz.ch
Version 0.94, July 27, 2005
Standard ftp site: ftp.ifor.math.ethz.ch, Directory: pub/fukuda/cdd
*/
/* 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.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "setoper.h"
#include "cdd.h"
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <math.h>
#include <string.h>
dd_boolean SetInputFile(FILE **f, dd_DataFileType fname)
{
dd_boolean success=dd_FALSE;
success=dd_FALSE;
if ( ( *f = fopen(fname, "r") )!= NULL) {
printf("input file %s is open\n", fname);
success=dd_TRUE;
}
else{
printf("The input file %s not found\n",fname);
}
return success;
}
dd_boolean SetWriteFile(FILE **f, dd_DataFileType fname)
{
dd_boolean success=dd_FALSE;
if ( (*f = fopen(fname, "w")) != NULL){
printf("output file %s is open\n",fname);
success=dd_TRUE;
}
else{
printf("The output file %s cannot be opened\n",fname);
}
return success;
}
int main(int argc, char *argv[])
{
dd_MatrixPtr M=NULL,M1=NULL;
dd_colrange j,s,t,d;
dd_ErrorType err=dd_NoError;
dd_rowset redset,impl_linset;
dd_colset delset;
dd_rowindex newpos;
mytype val;
dd_DataFileType inputfile;
FILE *reading=NULL;
dd_set_global_constants(); /* First, this must be called. */
dd_init(val);
if (argc>1) strcpy(inputfile,argv[1]);
if (argc<=1 || !SetInputFile(&reading,argv[1])){
dd_WriteProgramDescription(stdout);
fprintf(stdout,"\ncddlib test program to apply the Block Elimination to an H-polyhedron.\n");
dd_SetInputFile(&reading,inputfile, &err);
}
if (err==dd_NoError) {
M=dd_PolyFile2Matrix(reading, &err);
}
else {
fprintf(stderr,"Input file not found\n");
goto _L99;
}
if (err!=dd_NoError) goto _L99;
d=M->colsize;
set_initialize(&delset, d);
printf("How many variables to elminate? (max %ld): ",d-1);
scanf("%ld",&s);
for (j=1; j<=s; j++){
printf("\n%ld th deletion variable): ",j);
scanf("%ld",&t);
set_addelem(delset, t+1);
}
M1=dd_BlockElimination(M, delset, &err);
dd_WriteMatrix(stdout, M1);
dd_MatrixCanonicalize(&M1,&impl_linset,&redset,&newpos,&err);
if (err!=dd_NoError) goto _L99;
fprintf(stdout, "\nRedundant rows: ");
set_fwrite(stdout, redset);
fprintf(stdout, "\n");
dd_WriteMatrix(stdout, M1);
dd_FreeMatrix(M);
dd_FreeMatrix(M1);
set_free(delset);
set_free(redset);
set_free(impl_linset);
free(newpos);
_L99:;
/* if (err!=dd_NoError) dd_WriteErrorMessages(stderr,err); */
dd_free_global_constants(); /* At the end, this should be called. */
return 0;
}
/* end of projection.c */
|
