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cf_reval.cc
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1/* emacs edit mode for this file is -*- C++ -*- */
2
3#define MORE_ZEROES
4
5
6#include "config.h"
7
8
9#include "cf_assert.h"
10
11#include "cf_defs.h"
12#include "cf_reval.h"
13
14
16{
17 if ( e.gen == 0 )
18 gen = 0;
19 else
20 gen = e.gen->clone();
21 values = e.values;
22}
23
25{
26 if ( gen != 0 )
27 delete gen;
28}
29
32{
33 if ( this != &e ) {
34 if (gen!=0)
35 delete gen;
36 values = e.values;
37 if ( e.gen == 0 )
38 gen = 0;
39 else
40 gen = e.gen->clone();
41 }
42 return *this;
43}
44
45void
47{
48 int n = values.max();
49 for ( int i = values.min(); i <= n; i++ )
50 values[i] = gen->generate();
51}
52
53void
55{
56 int m= values.max();
57 int t= values.min();
58 for (int i= t; i <= m; i++)
59 values [i]= 0;
60
61 if (m == t)
62 {
63 values [t]= gen->generate();
64 return;
65 }
66 for (int i= 0; i < n; i++)
67 {
68 int l= factoryrandom (m - t + 1) + t;
69 values [l]= gen->generate();
70 }
71}
int l
Definition: cfEzgcd.cc:100
int m
Definition: cfEzgcd.cc:128
int i
Definition: cfEzgcd.cc:132
assertions for Factory
factory switches.
int factoryrandom(int n)
random integers with abs less than n
Definition: cf_random.cc:180
generate random evaluation points
int max() const
Definition: ftmpl_array.cc:104
int min() const
Definition: ftmpl_array.cc:98
virtual CFRandom * clone() const
Definition: cf_random.h:25
virtual CanonicalForm generate() const
Definition: cf_random.h:24
class to evaluate a polynomial at points
Definition: cf_eval.h:32
CFArray values
Definition: cf_eval.h:34
class to generate random evaluation points
Definition: cf_reval.h:26
~REvaluation()
Definition: cf_reval.cc:24
REvaluation()
Definition: cf_reval.h:30
CFRandom * gen
Definition: cf_reval.h:28
void nextpoint()
Definition: cf_reval.cc:46
REvaluation & operator=(const REvaluation &e)
Definition: cf_reval.cc:31