]>
Commit | Line | Data |
---|---|---|
1 | //$Id$ | |
2 | ||
3 | // Author: Constantin Loizides <mailto:loizides@fi.uib.no> | |
4 | //*-- Copyright & copy CL | |
5 | ||
6 | #include <stream.h> | |
7 | #include <math.h> | |
8 | #include <stdio.h> | |
9 | #include <stdlib.h> | |
10 | ||
11 | #include "AliL3Logging.h" | |
12 | #include "AliL3Logger.h" | |
13 | #include "AliL3FFloat.h" | |
14 | ||
15 | /** \class AliL3FFloat | |
16 | //<pre> | |
17 | //---------------------------------------------------- | |
18 | // AliL3FFloat | |
19 | // | |
20 | // Fixed Floating Point class for debugging purposes. | |
21 | // | |
22 | // The class behaves like a normal Double_t class but | |
23 | // calculates everything in respect to fDigits (eg. | |
24 | // fDigits=100 -> 2 digits behind the comma). Further- | |
25 | // more it keeps the exact value in floating precision | |
26 | // and gathers some statistical information about | |
27 | // its usage. | |
28 | //</pre> | |
29 | */ | |
30 | ||
31 | ||
32 | ClassImp(AliL3FFloat) | |
33 | ||
34 | Int_t AliL3FFloat::fDigits = DEFDIG; | |
35 | Int_t AliL3FFloat::fMax = DEFMAX; | |
36 | Int_t AliL3FFloat::fMin = DEFMIN; | |
37 | ||
38 | Int_t AliL3FFloat::fN = 0; | |
39 | Int_t AliL3FFloat::fNRounded = 0; | |
40 | Int_t AliL3FFloat::fNOpAdds = 0; | |
41 | Int_t AliL3FFloat::fNOpMults = 0; | |
42 | Int_t AliL3FFloat::fNOpDivs = 0; | |
43 | Int_t AliL3FFloat::fNOpSubs = 0; | |
44 | Int_t AliL3FFloat::fNOverFlow = 0; | |
45 | Int_t AliL3FFloat::fNUnderFlow = 0; | |
46 | ||
47 | ostream& operator<<(ostream &os, const AliL3FFloat &f) | |
48 | { | |
49 | // os << (Double_t)f << endl; | |
50 | os << (Double_t)f << "(" << f.fExactVal << ")" << endl; | |
51 | return os; | |
52 | } | |
53 | ||
54 | AliL3FFloat operator + (const AliL3FFloat &f1,const AliL3FFloat &f2) | |
55 | { | |
56 | AliL3FFloat r(f1); | |
57 | r+=f2; | |
58 | return r; | |
59 | } | |
60 | ||
61 | AliL3FFloat operator + (const AliL3FFloat &f1,const Double_t f2) | |
62 | { | |
63 | AliL3FFloat r(f1); | |
64 | r+=f2; | |
65 | return r; | |
66 | } | |
67 | ||
68 | AliL3FFloat operator + (const Double_t f1,const AliL3FFloat &f2) | |
69 | { | |
70 | AliL3FFloat r(f1); | |
71 | r+=f2; | |
72 | return r; | |
73 | } | |
74 | ||
75 | AliL3FFloat operator + (const AliL3FFloat &f) | |
76 | { | |
77 | AliL3FFloat r(f); | |
78 | return r; | |
79 | } | |
80 | ||
81 | ||
82 | AliL3FFloat operator - (const AliL3FFloat &f1,const AliL3FFloat &f2) | |
83 | { | |
84 | AliL3FFloat r(f1); | |
85 | r+=f2; | |
86 | return r; | |
87 | } | |
88 | ||
89 | AliL3FFloat operator - (const AliL3FFloat &f1,const Double_t f2) | |
90 | { | |
91 | AliL3FFloat r(f1); | |
92 | r-=f2; | |
93 | return r; | |
94 | } | |
95 | ||
96 | AliL3FFloat operator - (const Double_t f1,const AliL3FFloat &f2) | |
97 | { | |
98 | AliL3FFloat r(f1); | |
99 | r-=f2; | |
100 | return r; | |
101 | } | |
102 | ||
103 | AliL3FFloat operator - (const AliL3FFloat &f) | |
104 | { | |
105 | AliL3FFloat r((-(Double_t)f)); | |
106 | return r; | |
107 | } | |
108 | ||
109 | AliL3FFloat operator * (const AliL3FFloat &f1,const AliL3FFloat &f2) | |
110 | { | |
111 | AliL3FFloat r(f1); | |
112 | r*=f2; | |
113 | return r; | |
114 | } | |
115 | ||
116 | AliL3FFloat operator / (const AliL3FFloat &f1,const AliL3FFloat &f2) | |
117 | { | |
118 | AliL3FFloat r(f1); | |
119 | r/=f2; | |
120 | return r; | |
121 | } | |
122 | ||
123 | AliL3FFloat& AliL3FFloat::operator += (const AliL3FFloat &f) | |
124 | { | |
125 | Double_t ev=fExactVal+f.GetExactVal(); | |
126 | Set(fVal+(Double_t)f); | |
127 | fExactVal=ev; | |
128 | fNOpAdds++; | |
129 | return *this; | |
130 | } | |
131 | ||
132 | AliL3FFloat& AliL3FFloat::operator += (const Double_t f) | |
133 | { | |
134 | Double_t ev=fExactVal+f; | |
135 | Set(fVal+Round(f)); | |
136 | fExactVal=ev; | |
137 | fNOpAdds++; | |
138 | return *this; | |
139 | } | |
140 | ||
141 | AliL3FFloat& AliL3FFloat::operator -= (const AliL3FFloat &f) | |
142 | { | |
143 | Double_t ev=fExactVal-f.GetExactVal(); | |
144 | Set(fVal-(Double_t)f); | |
145 | fExactVal=ev; | |
146 | fNOpSubs++; | |
147 | return *this; | |
148 | } | |
149 | ||
150 | AliL3FFloat& AliL3FFloat::operator -= (const Double_t f) | |
151 | { | |
152 | Double_t ev=fExactVal-f; | |
153 | Set(fVal-Round(f)); | |
154 | fExactVal=ev; | |
155 | fNOpSubs++; | |
156 | return *this; | |
157 | } | |
158 | ||
159 | AliL3FFloat& AliL3FFloat::operator *= (const AliL3FFloat &f) | |
160 | { | |
161 | Double_t ev=fExactVal*f.GetExactVal(); | |
162 | Set(fVal*(Double_t)f); | |
163 | fExactVal=ev; | |
164 | fNOpMults++; | |
165 | return *this; | |
166 | } | |
167 | ||
168 | AliL3FFloat& AliL3FFloat::operator *= (const Double_t f) | |
169 | { | |
170 | Double_t ev=fExactVal*f; | |
171 | Set(fVal*Round(f)); | |
172 | fExactVal=ev; | |
173 | fNOpMults++; | |
174 | return *this; | |
175 | } | |
176 | ||
177 | AliL3FFloat& AliL3FFloat::operator /= (const AliL3FFloat &f) | |
178 | { | |
179 | Double_t ev=fExactVal/f.GetExactVal(); | |
180 | Set(fVal/(Double_t)f); | |
181 | fExactVal=ev; | |
182 | fNOpDivs++; | |
183 | return *this; | |
184 | } | |
185 | ||
186 | AliL3FFloat& AliL3FFloat::operator /= (const Double_t f) | |
187 | { | |
188 | Double_t ev=fExactVal/f; | |
189 | Set(fVal/Round(f)); | |
190 | fExactVal=ev; | |
191 | fNOpDivs++; | |
192 | return *this; | |
193 | } | |
194 | ||
195 | void AliL3FFloat::Set(Double_t val) | |
196 | { | |
197 | fVal=Round(val); | |
198 | fExactVal=val; | |
199 | CheckBounds(); | |
200 | fN++; | |
201 | } | |
202 | ||
203 | void AliL3FFloat::Set(AliL3FFloat &f) | |
204 | { | |
205 | fVal=(Double_t)f; | |
206 | fExactVal=f.GetExactVal(); | |
207 | CheckBounds(); | |
208 | fN++; | |
209 | } | |
210 | ||
211 | Double_t AliL3FFloat::Round(Double_t val) | |
212 | { | |
213 | Int_t dummy=Int_t(fDigits*val); | |
214 | Double_t ret=(Double_t)(dummy)/fDigits; | |
215 | if(ret!=val) fNRounded++; | |
216 | return ret; | |
217 | } | |
218 | ||
219 | Bool_t AliL3FFloat::CheckUpperBound() | |
220 | { | |
221 | if(fVal>fMax){ | |
222 | fVal=fMax; | |
223 | fNOverFlow++; | |
224 | return kFALSE; | |
225 | } | |
226 | ||
227 | return kTRUE; | |
228 | } | |
229 | ||
230 | Bool_t AliL3FFloat::CheckLowerBound() | |
231 | { | |
232 | if(fVal<fMin){ | |
233 | fVal=fMin; | |
234 | fNUnderFlow++; | |
235 | return kFALSE; | |
236 | } | |
237 | ||
238 | return kTRUE; | |
239 | } | |
240 | ||
241 | void AliL3FFloat::SetParams(Int_t dig,Int_t min,Int_t max) | |
242 | { | |
243 | fDigits=dig; | |
244 | fMin=min; | |
245 | fMax=max; | |
246 | } | |
247 | ||
248 | void AliL3FFloat::PrintStat(){ | |
249 | cout << "fN: " << fN << endl; | |
250 | cout << "fNRounded: " << fNRounded << endl; | |
251 | cout << "fNOpAdds: " << fNOpAdds << endl; | |
252 | cout << "fNOpSubs: " << fNOpSubs << endl; | |
253 | cout << "fNOpMults: " << fNOpMults << endl; | |
254 | cout << "fNOpDivs: " << fNOpDivs << endl; | |
255 | cout << "fNOpOverFlow: " << fNOverFlow << endl; | |
256 | cout << "fNOpUnderFlow: " << fNUnderFlow << endl; | |
257 | } |