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
|
/********************* */
/*! \file integer_cln_imp.h
** \verbatim
** Original author: taking
** Major contributors: none
** Minor contributors (to current version): mdeters, dejan
** This file is part of the CVC4 prototype.
** Copyright (c) 2009, 2010 The Analysis of Computer Systems Group (ACSys)
** Courant Institute of Mathematical Sciences
** New York University
** See the file COPYING in the top-level source directory for licensing
** information.\endverbatim
**
** \brief A multiprecision integer constant; wraps a CLN multiprecision
** integer.
**
** A multiprecision integer constant; wraps a CLN multiprecision integer.
**/
#include "cvc4_public.h"
#ifndef __CVC4__INTEGER_H
#define __CVC4__INTEGER_H
#include <string>
#include <iostream>
#include <cln/integer.h>
#include <sstream>
#include <cln/input.h>
#include <cln/integer_io.h>
#include "util/Assert.h"
namespace CVC4 {
class Rational;
class Integer {
private:
/**
* Stores the value of the rational is stored in a C++ GMP integer class.
* Using this instead of mpz_t allows for easier destruction.
*/
cln::cl_I d_value;
/**
* Gets a reference to the gmp data that backs up the integer.
* Only accessible to friend classes.
*/
//const mpz_class& get_mpz() const { return d_value; }
const cln::cl_I& get_cl_I() const { return d_value; }
/**
* Constructs an Integer by copying a GMP C++ primitive.
*/
//Integer(const mpz_class& val) : d_value(val) {}
Integer(const cln::cl_I& val) : d_value(val) {}
public:
/** Constructs a rational with the value 0. */
Integer() : d_value(0){}
/**
* Constructs a Integer from a C string.
* Throws std::invalid_argument if the string is not a valid rational.
* For more information about what is a valid rational string,
* see GMP's documentation for mpq_set_str().
*/
explicit Integer(const char * s, int base = 10) throw (std::invalid_argument){
cln::cl_read_flags flags;
flags.syntax = cln::syntax_integer;
flags.lsyntax = cln::lsyntax_standard;
flags.rational_base = base;
try{
d_value = read_integer(flags, s, NULL, NULL);
}catch(...){
std::stringstream ss;
ss << "Integer() failed to parse value \"" <<s << "\" in base=" <<base;
throw std::invalid_argument(ss.str());
}
}
Integer(const std::string& s, int base = 10) throw (std::invalid_argument) {
cln::cl_read_flags flags;
flags.syntax = cln::syntax_integer;
flags.lsyntax = cln::lsyntax_standard;
flags.rational_base = base;
try{
d_value = read_integer(flags, s.c_str(), NULL, NULL);
}catch(...){
std::stringstream ss;
ss << "Integer() failed to parse value \"" <<s << "\" in base=" <<base;
throw std::invalid_argument(ss.str());
}
}
Integer(const Integer& q) : d_value(q.d_value) {}
Integer( signed int z) : d_value(z) {}
Integer(unsigned int z) : d_value(z) {}
Integer( signed long int z) : d_value(z) {}
Integer(unsigned long int z) : d_value(z) {}
~Integer() {}
Integer& operator=(const Integer& x){
if(this == &x) return *this;
d_value = x.d_value;
return *this;
}
bool operator==(const Integer& y) const {
return d_value == y.d_value;
}
Integer operator-() const{
return Integer(-(d_value));
}
bool operator!=(const Integer& y) const {
return d_value != y.d_value;
}
bool operator< (const Integer& y) const {
return d_value < y.d_value;
}
bool operator<=(const Integer& y) const {
return d_value <= y.d_value;
}
bool operator> (const Integer& y) const {
return d_value > y.d_value;
}
bool operator>=(const Integer& y) const {
return d_value >= y.d_value;
}
Integer operator+(const Integer& y) const{
return Integer( d_value + y.d_value );
}
Integer operator-(const Integer& y) const {
return Integer( d_value - y.d_value );
}
Integer operator*(const Integer& y) const {
return Integer( d_value * y.d_value );
}
Integer operator/(const Integer& y) const {
return Integer( cln::floor1(d_value, y.d_value) );
}
Integer operator%(const Integer& y) const {
return Integer( cln::floor2(d_value, y.d_value).remainder );
}
/** Raise this Integer to the power <code>exp</code>.
*
* @param exp the exponent
*/
Integer pow(unsigned long int exp) const {
if(exp > 0){
cln::cl_I result= cln::expt_pos(d_value,exp);
return Integer( result );
}else if(exp == 0){
return Integer( 1 );
}else{
Unimplemented();
}
}
std::string toString(int base = 10) const{
std::stringstream ss;
switch(base){
case 2:
fprintbinary(ss,d_value);
break;
case 8:
fprintoctal(ss,d_value);
break;
case 10:
fprintdecimal(ss,d_value);
break;
case 16:
fprinthexadecimal(ss,d_value);
break;
default:
Unhandled();
break;
}
std::string output = ss.str();
for( unsigned i = 0; i <= output.length(); ++i){
if(isalpha(output[i])){
output.replace(i, 1, 1, tolower(output[i]));
}
}
return output;
}
//friend std::ostream& operator<<(std::ostream& os, const Integer& n);
long getLong() const { return cln::cl_I_to_long(d_value); }
unsigned long getUnsignedLong() const {return cln::cl_I_to_ulong(d_value); }
/**
* Computes the hash of the node from the first word of the
* numerator, the denominator.
*/
size_t hash() const {
return equal_hashcode(d_value);
}
friend class CVC4::Rational;
};/* class Integer */
struct IntegerHashStrategy {
static inline size_t hash(const CVC4::Integer& i) {
return i.hash();
}
};/* struct IntegerHashStrategy */
std::ostream& operator<<(std::ostream& os, const Integer& n);
}/* CVC4 namespace */
#endif /* __CVC4__INTEGER_H */
|
