source: Sophya/trunk/Poubelle/DPC:FitsIOServer/Blitz/blitz/applics.h@ 2457

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1/***************************************************************************
2 * blitz/applics.h Applicative template classes
3 *
4 * $Id: applics.h,v 1.1.1.1 1999-11-26 16:37:02 ansari Exp $
5 *
6 * Copyright (C) 1997,1998 Todd Veldhuizen <tveldhui@seurat.uwaterloo.ca>
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * as published by the Free Software Foundation; either version 2
11 * of the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * Suggestions: blitz-suggest@cybervision.com
19 * Bugs: blitz-bugs@cybervision.com
20 *
21 * For more information, please see the Blitz++ Home Page:
22 * http://seurat.uwaterloo.ca/blitz/
23 *
24 ***************************************************************************
25 * $Log: not supported by cvs2svn $
26 * Revision 1.1.1.1 1999/04/09 17:58:58 ansari
27 * Creation module DPC/Blitz (blitz 0.4) Reza 09/04/99
28 *
29 * Revision 1.5 1998/03/14 00:04:47 tveldhui
30 * 0.2-alpha-05
31 *
32 * Revision 1.4 1997/07/16 14:51:20 tveldhui
33 * Update: Alpha release 0.2 (Arrays)
34 *
35 * Revision 1.3 1997/01/24 14:42:00 tveldhui
36 * Periodic RCS update
37 *
38 * Revision 1.2 1997/01/13 22:19:58 tveldhui
39 * Periodic RCS update
40 *
41 *
42 */
43
44#ifndef BZ_APPLICS_H
45#define BZ_APPLICS_H
46
47#ifndef BZ_BLITZ_H
48 #include <blitz/blitz.h>
49#endif
50
51#ifndef BZ_PROMOTE_H
52 #include <blitz/promote.h>
53#endif
54
55#ifndef BZ_NUMTRAIT_H
56 #include <blitz/numtrait.h>
57#endif
58
59BZ_NAMESPACE(blitz)
60
61// These base classes are included for no other reason than to keep
62// the applicative templates clustered together in a graphical
63// class browser.
64class ApplicativeTemplatesBase { };
65class TwoOperandApplicativeTemplatesBase : public ApplicativeTemplatesBase { };
66class OneOperandApplicativeTemplatesBase : public ApplicativeTemplatesBase { };
67
68template<class P_numtype1, class P_numtype2>
69class _bz_Add : public TwoOperandApplicativeTemplatesBase {
70public:
71 typedef P_numtype1 T_numtype1;
72 typedef P_numtype2 T_numtype2;
73 typedef BZ_PROMOTE(T_numtype1,T_numtype2) T_promote;
74 typedef T_promote T_numtype;
75
76 static inline T_promote apply(P_numtype1 x, P_numtype2 y)
77 { return x + y; }
78};
79
80template<class P_numtype1, class P_numtype2>
81class _bz_Subtract : public TwoOperandApplicativeTemplatesBase {
82public:
83 typedef P_numtype1 T_numtype1;
84 typedef P_numtype2 T_numtype2;
85 typedef BZ_PROMOTE(T_numtype1,T_numtype2) T_promote;
86 typedef T_promote T_numtype;
87
88 static inline T_promote apply(P_numtype1 x, P_numtype2 y)
89 { return x - y; }
90};
91
92template<class P_numtype1, class P_numtype2>
93class _bz_Multiply : public TwoOperandApplicativeTemplatesBase {
94public:
95 typedef P_numtype1 T_numtype1;
96 typedef P_numtype2 T_numtype2;
97 typedef BZ_PROMOTE(T_numtype1,T_numtype2) T_promote;
98 typedef T_promote T_numtype;
99
100 static inline T_promote apply(P_numtype1 x, P_numtype2 y)
101 { return x * y; }
102};
103
104template<class P_numtype1, class P_numtype2>
105class _bz_Divide : public TwoOperandApplicativeTemplatesBase {
106public:
107 typedef P_numtype1 T_numtype1;
108 typedef P_numtype2 T_numtype2;
109 typedef BZ_PROMOTE(T_numtype1,T_numtype2) T_promote;
110 typedef T_promote T_numtype;
111
112 static inline T_promote apply(P_numtype1 x, P_numtype2 y)
113 { return x / y; }
114};
115
116template<class P_numtype1, class P_numtype2>
117class _bz_Mod : public TwoOperandApplicativeTemplatesBase {
118public:
119 typedef P_numtype1 T_numtype1;
120 typedef P_numtype2 T_numtype2;
121 typedef BZ_PROMOTE(T_numtype1,T_numtype2) T_promote;
122 typedef T_promote T_numtype;
123
124 static inline T_promote apply(P_numtype1 x, P_numtype2 y)
125 { return x % y; }
126};
127
128template<class P_numtype1, class P_numtype2>
129class _bz_BitwiseXOR : public TwoOperandApplicativeTemplatesBase {
130public:
131 typedef P_numtype1 T_numtype1;
132 typedef P_numtype2 T_numtype2;
133 typedef BZ_PROMOTE(T_numtype1,T_numtype2) T_promote;
134 typedef T_promote T_numtype;
135
136 static inline T_promote apply(P_numtype1 x, P_numtype2 y)
137 { return x ^ y; }
138};
139
140template<class P_numtype1, class P_numtype2>
141class _bz_BitwiseAnd : public TwoOperandApplicativeTemplatesBase {
142public:
143 typedef P_numtype1 T_numtype1;
144 typedef P_numtype2 T_numtype2;
145 typedef BZ_PROMOTE(T_numtype1,T_numtype2) T_promote;
146 typedef T_promote T_numtype;
147
148 static inline T_promote apply(P_numtype1 x, P_numtype2 y)
149 { return x & y; }
150};
151
152template<class P_numtype1, class P_numtype2>
153class _bz_BitwiseOr : public TwoOperandApplicativeTemplatesBase {
154public:
155 typedef P_numtype1 T_numtype1;
156 typedef P_numtype2 T_numtype2;
157 typedef BZ_PROMOTE(T_numtype1,T_numtype2) T_promote;
158 typedef T_promote T_numtype;
159
160 static inline T_promote apply(P_numtype1 x, P_numtype2 y)
161 { return x | y; }
162};
163
164template<class P_numtype1, class P_numtype2>
165class _bz_ShiftRight : public TwoOperandApplicativeTemplatesBase {
166public:
167 typedef P_numtype1 T_numtype1;
168 typedef P_numtype2 T_numtype2;
169 typedef BZ_PROMOTE(T_numtype1,T_numtype2) T_promote;
170 typedef T_promote T_numtype;
171
172 static inline T_promote apply(P_numtype1 x, P_numtype2 y)
173 { return x >> y; }
174};
175
176template<class P_numtype1, class P_numtype2>
177class _bz_ShiftLeft : public TwoOperandApplicativeTemplatesBase {
178public:
179 typedef P_numtype1 T_numtype1;
180 typedef P_numtype2 T_numtype2;
181 typedef BZ_PROMOTE(T_numtype1,T_numtype2) T_promote;
182 typedef T_promote T_numtype;
183
184 static inline T_promote apply(P_numtype1 x, P_numtype2 y)
185 { return x << y; }
186};
187
188template<class P_numtype1, class P_numtype2>
189class _bz_Greater : public TwoOperandApplicativeTemplatesBase {
190public:
191 typedef P_numtype1 T_numtype1;
192 typedef P_numtype2 T_numtype2;
193 typedef _bz_bool T_promote;
194 typedef T_promote T_numtype;
195
196 static inline T_promote apply(P_numtype1 x, P_numtype2 y)
197 { return x > y; }
198};
199
200template<class P_numtype1, class P_numtype2>
201class _bz_Less : public TwoOperandApplicativeTemplatesBase {
202public:
203 typedef P_numtype1 T_numtype1;
204 typedef P_numtype2 T_numtype2;
205 typedef _bz_bool T_promote;
206 typedef T_promote T_numtype;
207
208 static inline T_promote apply(P_numtype1 x, P_numtype2 y)
209 { return x < y; }
210};
211
212template<class P_numtype1, class P_numtype2>
213class _bz_GreaterOrEqual : public TwoOperandApplicativeTemplatesBase {
214public:
215 typedef P_numtype1 T_numtype1;
216 typedef P_numtype2 T_numtype2;
217 typedef _bz_bool T_promote;
218 typedef T_promote T_numtype;
219
220 static inline T_promote apply(P_numtype1 x, P_numtype2 y)
221 { return x >= y; }
222};
223
224template<class P_numtype1, class P_numtype2>
225class _bz_LessOrEqual : public TwoOperandApplicativeTemplatesBase {
226public:
227 typedef P_numtype1 T_numtype1;
228 typedef P_numtype2 T_numtype2;
229 typedef _bz_bool T_promote;
230 typedef T_promote T_numtype;
231
232 static inline T_promote apply(P_numtype1 x, P_numtype2 y)
233 { return x <= y; }
234};
235
236template<class P_numtype1, class P_numtype2>
237class _bz_Equal : public TwoOperandApplicativeTemplatesBase {
238public:
239 typedef P_numtype1 T_numtype1;
240 typedef P_numtype2 T_numtype2;
241 typedef _bz_bool T_promote;
242 typedef T_promote T_numtype;
243
244 static inline T_promote apply(P_numtype1 x, P_numtype2 y)
245 { return x == y; }
246};
247
248template<class P_numtype1, class P_numtype2>
249class _bz_NotEqual : public TwoOperandApplicativeTemplatesBase {
250public:
251 typedef P_numtype1 T_numtype1;
252 typedef P_numtype2 T_numtype2;
253 typedef _bz_bool T_promote;
254 typedef T_promote T_numtype;
255
256 static inline T_promote apply(P_numtype1 x, P_numtype2 y)
257 { return x != y; }
258};
259
260template<class P_numtype1, class P_numtype2>
261class _bz_LogicalAnd : public TwoOperandApplicativeTemplatesBase {
262public:
263 typedef P_numtype1 T_numtype1;
264 typedef P_numtype2 T_numtype2;
265 typedef _bz_bool T_promote;
266 typedef T_promote T_numtype;
267
268 static inline T_promote apply(P_numtype1 x, P_numtype2 y)
269 { return x && y; }
270};
271
272template<class P_numtype1, class P_numtype2>
273class _bz_LogicalOr : public TwoOperandApplicativeTemplatesBase {
274public:
275 typedef P_numtype1 T_numtype1;
276 typedef P_numtype2 T_numtype2;
277 typedef _bz_bool T_promote;
278 typedef T_promote T_numtype;
279
280 static inline T_promote apply(P_numtype1 x, P_numtype2 y)
281 { return x || y; }
282};
283
284template<class P_numtype_in, class P_numtype_out>
285class _bz_Cast : public OneOperandApplicativeTemplatesBase {
286public:
287 typedef P_numtype_in T_numtype1;
288 typedef P_numtype_out T_promote;
289 typedef T_promote T_numtype;
290
291 static inline P_numtype_out apply(P_numtype_in x)
292 { return P_numtype_out(x); }
293};
294
295template<class P_numtype>
296class _bz_LogicalNot : public OneOperandApplicativeTemplatesBase {
297public:
298 typedef P_numtype T_numtype1;
299 typedef _bz_bool T_promote;
300 typedef T_promote T_numtype;
301
302 static inline P_numtype apply(P_numtype x)
303 { return !x; }
304};
305
306template<class P_numtype>
307class _bz_BitwiseNot : public OneOperandApplicativeTemplatesBase {
308public:
309 typedef P_numtype T_numtype1;
310 typedef T_numtype1 T_promote;
311 typedef T_promote T_numtype;
312
313 static inline P_numtype apply(P_numtype x)
314 { return ~x; }
315};
316
317/*****************************************************************************
318 * Math Functions
319 *****************************************************************************/
320
321// Applicative templates for these functions are defined in
322// <blitz/mathfunc.h>, which is included below:
323//
324// abs(i), labs(l) Absolute value
325// acos(d), acols(ld) Inverse cosine
326// acosh(d) Inverse hyperbolic cosine
327// asin(d), asinl(ld) Inverse sine
328// asinh(d) Inverse hyperbolic sine
329// atan(d), atanl(ld) Inverse tangent
330// atan2(d,d), atan2l(ld,ld) Inverse tangent
331// atanh(d) Inverse hyperbolic tangent
332// cbrt(x) Cube root
333// ceil(d), ceill(ld) Smallest f-int not less than x
334// int class(d) Classification of x (FP_XXXXX)
335// cos(d), cosl(ld) Cosine
336// cosh(d), coshl(ld) Hyperbolic cosine
337// copysign(d,d) Return 1st arg with same sign as 2nd
338// drem(x,x) IEEE remainder
339// exp(d), expl(ld) Exponential
340// expm1(d) Exp(x)-1
341// erf(d), erfl(ld) Error function
342// erfc(d), erfcl(ld) Complementary error function
343// fabs(d), fabsl(ld) Floating point absolute value
344// int finite(d) Nonzero if finite
345// floor(d), floor(ld) Largest f-int not greater than x
346// fmod(d,d), fmodl(ld,ld) Floating point remainder
347// frexp(d, int* e) Break into mantissa/exponent (*)
348// frexpl(ld, int* e) Break into mantissa/exponent (*)
349// gammaFunc(d) Gamma function (** needs special
350// implementation using lgamma)
351// hypot(d,d) Hypotenuse: sqrt(x*x+y*y)
352// int ilogb(d) Integer unbiased exponent
353// int isnan(d) Nonzero if NaNS or NaNQ
354// int itrunc(d) Truncate and convert to integer
355// j0(d) Bessel function first kind, order 0
356// j1(d) Bessel function first kind, order 1
357// jn(int, double) Bessel function first kind, order i
358// ldexp(d,i), ldexpl(ld,i) Compute d * 2^i
359// lgamma(d), lgammald(ld) Log absolute gamma
360// log(d), logl(ld) Natural logarithm
361// logb(d) Unbiased exponent (IEEE)
362// log1p(d) Compute log(1 + x)
363// log10(d), log10l(ld) Logarithm base 10
364// modf(d, int* i), modfl(ld, int* i) Break into integral/fractional part
365// double nearest(double) Nearest floating point integer
366// nextafter(d, d) Next representable neighbor of 1st
367// in direction of 2nd
368// pow(d,d), pow(ld,ld) Computes x ^ y
369// d remainder(d,d) IEEE remainder
370// d rint(d) Round to f-integer (depends on mode)
371// d rsqrt(d) Reciprocal square root
372// d scalb(d,d) Return x * (2^y)
373// sin(d), sinl(ld) Sine
374// sinh(d), sinhl(ld) Hyperbolic sine
375// sqr(x) Return x * x
376// sqrt(d), sqrtl(ld) Square root
377// tan(d), tanl(ld) Tangent
378// tanh(d), tanhl(ld) Hyperbolic tangent
379// trunc(d) Nearest f-int in the direction of 0
380// unsigned uitrunc(d) Truncate and convert to unsigned
381// int unordered(d,d) Nonzero if comparison is unordered
382// y0(d) Bessel function 2nd kind, order 0
383// y1(d) Bessel function 2nd kind, order 1
384// yn(i,d) Bessel function 2nd kind, order d
385
386
387BZ_NAMESPACE_END
388
389#ifndef BZ_MATHFUNC_H
390 #include <blitz/mathfunc.h>
391#endif
392
393#ifndef BZ_MATHF2_H
394 #include <blitz/mathf2.h>
395#endif
396
397#endif // BZ_APPLICS_H
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