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
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
|
// { dg-do run }
// GROUPS passed code-generation
// code-gen file
// From: "David" <norman@pi14.arc.umn.edu>
// Date: Mon, 15 Nov 1993 20:59:14 -0600 (CST)
// Subject: An error!
// Message-ID: <9311160259.AA03353@pi14.arc.umn.edu>
#include <cstdlib>
#include <cstdio>
#include <cassert>
#include <fstream>
#include <iostream>
#include <cmath>
#define ANSI_C
typedef double VEC ;
class Vector;
class VectorInt
{
public:
/* Nothing public!! Only Vector can use this class */
private:
VectorInt( int );
VectorInt( int, double *, int = 0 );
VectorInt( const VectorInt & );
~VectorInt();
VectorInt *refer();
void unrefer();
int count; /* Number of Vector's referring to me */
VEC *vec;
friend class Vector;
friend class VecElem;
};
class VecElem
{
public:
operator double();
double operator=( double );
private:
VecElem( Vector &, int );
VecElem( const VecElem & );
Vector &v;
int row; /* Row element refers to */
friend class Vector;
};
class Vector
{
public:
Vector(); // Must be assigned to before used
Vector( VectorInt * );
Vector( int );
Vector( int, double *, int beg = 0 );
Vector( const Vector & );
Vector &operator=( const Vector & );
~Vector() { if(r) r->unrefer(); }
int row() const { return 19; }
int dim() const { return 10; }
double operator()( int ) const;
VecElem operator()( int );
double assign( int, double );
friend std::ostream& operator<<(std::ostream&, const Vector& m );
private:
VectorInt *r; /* Reference to real data */
friend class VecElem;
friend class LUDecom;
friend class SVD;
};
Vector::
Vector()
: r(0)
{}
Vector::
Vector( VectorInt *vi )
: r(vi)
{
r->refer();
}
Vector::
Vector( int row )
{
assert( row > 0 );
r = new VectorInt( row );
r->refer();
}
Vector::
Vector( int row, double *d, int beg )
{
assert( row > 0 );
r = new VectorInt( row, d, beg );
r->refer();
}
Vector::
Vector( const Vector &A )
: r( A.r->refer() )
{}
Vector& Vector::
operator=( const Vector &A )
{
if( r )
r->unrefer();
r = A.r->refer();
return *this;
}
double Vector::
operator()( int row ) const
{
assert(r != 0);
return *r->vec;
}
VecElem Vector::
operator()( int r )
{
assert(r != 0);
return VecElem( *this, r );
}
/* assign changes the matrix, it does not create a new one! */
double Vector::
assign( int rownum, double d )
{
assert(r != 0);
if( rownum > row() || rownum <= 0 ) {
std::cerr << "Warning: trying to assign out of bounds" << std::endl;
std::cerr << "row " << rownum << std::endl;
std::cerr << "Vector size " << row() << std::endl;
std::abort();
}
if( r->count == 1 ) {
/* Don't need to create a new matrix, since we are the only */
/* one pointing to ours */
}
else {
VectorInt *vi = new VectorInt( *r );
r->unrefer();
r = vi->refer();
}
return d;
}
VectorInt::
VectorInt( int sx )
: vec( new double[sx] ), count(0)
{ }
VectorInt::
VectorInt( int sx, double *, int )
: vec( new double[sx] ), count(0)
{
}
VectorInt::
VectorInt( const VectorInt & )
: vec( new double[10] ), count(0)
{
}
VectorInt * VectorInt::
refer()
{
count ++;
return this;
// cout << "Refering vec" << endl;
}
void VectorInt::
unrefer()
{
count--;
if( count == 0 ) {
delete this;
}
// cout << "Unrefering vec" << endl;
}
VectorInt::
~VectorInt()
{
delete vec;
vec = 0;
}
VecElem::
VecElem( Vector &vec, int r )
: v(vec), row(r)
{
if( r < 1 || r > vec.row() ) {
std::cerr << "Trying to access vector element out of bounds";
std::cerr << std::endl;
std::abort();
}
}
VecElem::
VecElem( const VecElem &elem )
: v(elem.v), row(elem.row)
{}
VecElem::
operator double()
{
assert( v.r->vec != 0 );
return *v.r->vec;
}
double VecElem::
operator=( double d )
{
return v.assign( row, d );
}
int makeforms( Vector cen, Vector **a, Vector **b );
int main()
{
Vector *a[8], *b[8], disp(3);
Vector cen(3), cen2(3);
int i, j;
if (makeforms (cen,a,b) != 10)
{ std::printf ("FAIL\n"); return 1; }
else
std::printf ("PASS\n");
}
int
makeforms( Vector cen, Vector **a, Vector **b)
{
return 10;
}
|
