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gfiber / toolchains / windcharger / 44a5313a10e856f66af183402ad3f2a077fe0476 / . / mips-qca-linux-uclibc / include / c++ / 4.6.4 / bits / valarray_after.h
blob: 6440fae43d90897dcba9fcce736de42d5d4a2920 [file] [log] [blame]
Andrew Davies8dac4ad2015-01-29 14:01:30 -0800[diff] [blame]1// The template and inlines for the -*- C++ -*- internal _Meta class.
2
3// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
4// 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
5//
6// This file is part of the GNU ISO C++ Library. This library is free
7// software; you can redistribute it and/or modify it under the
8// terms of the GNU General Public License as published by the
9// Free Software Foundation; either version 3, or (at your option)
10// any later version.
11
12// This library is distributed in the hope that it will be useful,
13// but WITHOUT ANY WARRANTY; without even the implied warranty of
14// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15// GNU General Public License for more details.
16
17// Under Section 7 of GPL version 3, you are granted additional
18// permissions described in the GCC Runtime Library Exception, version
19// 3.1, as published by the Free Software Foundation.
20
21// You should have received a copy of the GNU General Public License and
22// a copy of the GCC Runtime Library Exception along with this program;
23// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
24// <http://www.gnu.org/licenses/>.
25
26/** @file bits/valarray_after.h
27 * This is an internal header file, included by other library headers.
28 * Do not attempt to use it directly. @headername{valarray}
29 */
30
31// Written by Gabriel Dos Reis <Gabriel.Dos-Reis@cmla.ens-cachan.fr>
32
33#ifndef _VALARRAY_AFTER_H
34#define _VALARRAY_AFTER_H 1
35
36#pragma GCC system_header
37
38namespace std _GLIBCXX_VISIBILITY(default)
39{
40_GLIBCXX_BEGIN_NAMESPACE_VERSION
41
42 //
43 // gslice_array closure.
44 //
45 template<class _Dom>
46 class _GBase
47 {
48 public:
49 typedef typename _Dom::value_type value_type;
50
51 _GBase (const _Dom& __e, const valarray<size_t>& __i)
52 : _M_expr (__e), _M_index(__i) {}
53
54 value_type
55 operator[] (size_t __i) const
56 { return _M_expr[_M_index[__i]]; }
57
58 size_t
59 size () const
60 { return _M_index.size(); }
61
62 private:
63 const _Dom& _M_expr;
64 const valarray<size_t>& _M_index;
65 };
66
67 template<typename _Tp>
68 class _GBase<_Array<_Tp> >
69 {
70 public:
71 typedef _Tp value_type;
72
73 _GBase (_Array<_Tp> __a, const valarray<size_t>& __i)
74 : _M_array (__a), _M_index(__i) {}
75
76 value_type
77 operator[] (size_t __i) const
78 { return _M_array._M_data[_M_index[__i]]; }
79
80 size_t
81 size () const
82 { return _M_index.size(); }
83
84 private:
85 const _Array<_Tp> _M_array;
86 const valarray<size_t>& _M_index;
87 };
88
89 template<class _Dom>
90 struct _GClos<_Expr, _Dom>
91 : _GBase<_Dom>
92 {
93 typedef _GBase<_Dom> _Base;
94 typedef typename _Base::value_type value_type;
95
96 _GClos (const _Dom& __e, const valarray<size_t>& __i)
97 : _Base (__e, __i) {}
98 };
99
100 template<typename _Tp>
101 struct _GClos<_ValArray, _Tp>
102 : _GBase<_Array<_Tp> >
103 {
104 typedef _GBase<_Array<_Tp> > _Base;
105 typedef typename _Base::value_type value_type;
106
107 _GClos (_Array<_Tp> __a, const valarray<size_t>& __i)
108 : _Base (__a, __i) {}
109 };
110
111 //
112 // indirect_array closure
113 //
114 template<class _Dom>
115 class _IBase
116 {
117 public:
118 typedef typename _Dom::value_type value_type;
119
120 _IBase (const _Dom& __e, const valarray<size_t>& __i)
121 : _M_expr (__e), _M_index (__i) {}
122
123 value_type
124 operator[] (size_t __i) const
125 { return _M_expr[_M_index[__i]]; }
126
127 size_t
128 size() const
129 { return _M_index.size(); }
130
131 private:
132 const _Dom& _M_expr;
133 const valarray<size_t>& _M_index;
134 };
135
136 template<class _Dom>
137 struct _IClos<_Expr, _Dom>
138 : _IBase<_Dom>
139 {
140 typedef _IBase<_Dom> _Base;
141 typedef typename _Base::value_type value_type;
142
143 _IClos (const _Dom& __e, const valarray<size_t>& __i)
144 : _Base (__e, __i) {}
145 };
146
147 template<typename _Tp>
148 struct _IClos<_ValArray, _Tp>
149 : _IBase<valarray<_Tp> >
150 {
151 typedef _IBase<valarray<_Tp> > _Base;
152 typedef _Tp value_type;
153
154 _IClos (const valarray<_Tp>& __a, const valarray<size_t>& __i)
155 : _Base (__a, __i) {}
156 };
157
158 //
159 // class _Expr
160 //
161 template<class _Clos, typename _Tp>
162 class _Expr
163 {
164 public:
165 typedef _Tp value_type;
166
167 _Expr(const _Clos&);
168
169 const _Clos& operator()() const;
170
171 value_type operator[](size_t) const;
172 valarray<value_type> operator[](slice) const;
173 valarray<value_type> operator[](const gslice&) const;
174 valarray<value_type> operator[](const valarray<bool>&) const;
175 valarray<value_type> operator[](const valarray<size_t>&) const;
176
177 _Expr<_UnClos<__unary_plus, std::_Expr, _Clos>, value_type>
178 operator+() const;
179
180 _Expr<_UnClos<__negate, std::_Expr, _Clos>, value_type>
181 operator-() const;
182
183 _Expr<_UnClos<__bitwise_not, std::_Expr, _Clos>, value_type>
184 operator~() const;
185
186 _Expr<_UnClos<__logical_not, std::_Expr, _Clos>, bool>
187 operator!() const;
188
189 size_t size() const;
190 value_type sum() const;
191
192 valarray<value_type> shift(int) const;
193 valarray<value_type> cshift(int) const;
194
195 value_type min() const;
196 value_type max() const;
197
198 valarray<value_type> apply(value_type (*)(const value_type&)) const;
199 valarray<value_type> apply(value_type (*)(value_type)) const;
200
201 private:
202 const _Clos _M_closure;
203 };
204
205 template<class _Clos, typename _Tp>
206 inline
207 _Expr<_Clos, _Tp>::_Expr(const _Clos& __c) : _M_closure(__c) {}
208
209 template<class _Clos, typename _Tp>
210 inline const _Clos&
211 _Expr<_Clos, _Tp>::operator()() const
212 { return _M_closure; }
213
214 template<class _Clos, typename _Tp>
215 inline _Tp
216 _Expr<_Clos, _Tp>::operator[](size_t __i) const
217 { return _M_closure[__i]; }
218
219 template<class _Clos, typename _Tp>
220 inline valarray<_Tp>
221 _Expr<_Clos, _Tp>::operator[](slice __s) const
222 {
223 valarray<_Tp> __v = valarray<_Tp>(*this)[__s];
224 return __v;
225 }
226
227 template<class _Clos, typename _Tp>
228 inline valarray<_Tp>
229 _Expr<_Clos, _Tp>::operator[](const gslice& __gs) const
230 {
231 valarray<_Tp> __v = valarray<_Tp>(*this)[__gs];
232 return __v;
233 }
234
235 template<class _Clos, typename _Tp>
236 inline valarray<_Tp>
237 _Expr<_Clos, _Tp>::operator[](const valarray<bool>& __m) const
238 {
239 valarray<_Tp> __v = valarray<_Tp>(*this)[__m];
240 return __v;
241 }
242
243 template<class _Clos, typename _Tp>
244 inline valarray<_Tp>
245 _Expr<_Clos, _Tp>::operator[](const valarray<size_t>& __i) const
246 {
247 valarray<_Tp> __v = valarray<_Tp>(*this)[__i];
248 return __v;
249 }
250
251 template<class _Clos, typename _Tp>
252 inline size_t
253 _Expr<_Clos, _Tp>::size() const
254 { return _M_closure.size(); }
255
256 template<class _Clos, typename _Tp>
257 inline valarray<_Tp>
258 _Expr<_Clos, _Tp>::shift(int __n) const
259 {
260 valarray<_Tp> __v = valarray<_Tp>(*this).shift(__n);
261 return __v;
262 }
263
264 template<class _Clos, typename _Tp>
265 inline valarray<_Tp>
266 _Expr<_Clos, _Tp>::cshift(int __n) const
267 {
268 valarray<_Tp> __v = valarray<_Tp>(*this).cshift(__n);
269 return __v;
270 }
271
272 template<class _Clos, typename _Tp>
273 inline valarray<_Tp>
274 _Expr<_Clos, _Tp>::apply(_Tp __f(const _Tp&)) const
275 {
276 valarray<_Tp> __v = valarray<_Tp>(*this).apply(__f);
277 return __v;
278 }
279
280 template<class _Clos, typename _Tp>
281 inline valarray<_Tp>
282 _Expr<_Clos, _Tp>::apply(_Tp __f(_Tp)) const
283 {
284 valarray<_Tp> __v = valarray<_Tp>(*this).apply(__f);
285 return __v;
286 }
287
288 // XXX: replace this with a more robust summation algorithm.
289 template<class _Clos, typename _Tp>
290 inline _Tp
291 _Expr<_Clos, _Tp>::sum() const
292 {
293 size_t __n = _M_closure.size();
294 if (__n == 0)
295 return _Tp();
296 else
297 {
298 _Tp __s = _M_closure[--__n];
299 while (__n != 0)
300 __s += _M_closure[--__n];
301 return __s;
302 }
303 }
304
305 template<class _Clos, typename _Tp>
306 inline _Tp
307 _Expr<_Clos, _Tp>::min() const
308 { return __valarray_min(_M_closure); }
309
310 template<class _Clos, typename _Tp>
311 inline _Tp
312 _Expr<_Clos, _Tp>::max() const
313 { return __valarray_max(_M_closure); }
314
315 template<class _Dom, typename _Tp>
316 inline _Expr<_UnClos<__logical_not, _Expr, _Dom>, bool>
317 _Expr<_Dom, _Tp>::operator!() const
318 {
319 typedef _UnClos<__logical_not, std::_Expr, _Dom> _Closure;
320 return _Expr<_Closure, bool>(_Closure(this->_M_closure));
321 }
322
323#define _DEFINE_EXPR_UNARY_OPERATOR(_Op, _Name) \
324 template<class _Dom, typename _Tp> \
325 inline _Expr<_UnClos<_Name, std::_Expr, _Dom>, _Tp> \
326 _Expr<_Dom, _Tp>::operator _Op() const \
327 { \
328 typedef _UnClos<_Name, std::_Expr, _Dom> _Closure; \
329 return _Expr<_Closure, _Tp>(_Closure(this->_M_closure)); \
330 }
331
332 _DEFINE_EXPR_UNARY_OPERATOR(+, __unary_plus)
333 _DEFINE_EXPR_UNARY_OPERATOR(-, __negate)
334 _DEFINE_EXPR_UNARY_OPERATOR(~, __bitwise_not)
335
336#undef _DEFINE_EXPR_UNARY_OPERATOR
337
338#define _DEFINE_EXPR_BINARY_OPERATOR(_Op, _Name) \
339 template<class _Dom1, class _Dom2> \
340 inline _Expr<_BinClos<_Name, _Expr, _Expr, _Dom1, _Dom2>, \
341 typename __fun<_Name, typename _Dom1::value_type>::result_type> \
342 operator _Op(const _Expr<_Dom1, typename _Dom1::value_type>& __v, \
343 const _Expr<_Dom2, typename _Dom2::value_type>& __w) \
344 { \
345 typedef typename _Dom1::value_type _Arg; \
346 typedef typename __fun<_Name, _Arg>::result_type _Value; \
347 typedef _BinClos<_Name, _Expr, _Expr, _Dom1, _Dom2> _Closure; \
348 return _Expr<_Closure, _Value>(_Closure(__v(), __w())); \
349 } \
350 \
351 template<class _Dom> \
352 inline _Expr<_BinClos<_Name, _Expr, _Constant, _Dom, \
353 typename _Dom::value_type>, \
354 typename __fun<_Name, typename _Dom::value_type>::result_type> \
355 operator _Op(const _Expr<_Dom, typename _Dom::value_type>& __v, \
356 const typename _Dom::value_type& __t) \
357 { \
358 typedef typename _Dom::value_type _Arg; \
359 typedef typename __fun<_Name, _Arg>::result_type _Value; \
360 typedef _BinClos<_Name, _Expr, _Constant, _Dom, _Arg> _Closure; \
361 return _Expr<_Closure, _Value>(_Closure(__v(), __t)); \
362 } \
363 \
364 template<class _Dom> \
365 inline _Expr<_BinClos<_Name, _Constant, _Expr, \
366 typename _Dom::value_type, _Dom>, \
367 typename __fun<_Name, typename _Dom::value_type>::result_type> \
368 operator _Op(const typename _Dom::value_type& __t, \
369 const _Expr<_Dom, typename _Dom::value_type>& __v) \
370 { \
371 typedef typename _Dom::value_type _Arg; \
372 typedef typename __fun<_Name, _Arg>::result_type _Value; \
373 typedef _BinClos<_Name, _Constant, _Expr, _Arg, _Dom> _Closure; \
374 return _Expr<_Closure, _Value>(_Closure(__t, __v())); \
375 } \
376 \
377 template<class _Dom> \
378 inline _Expr<_BinClos<_Name, _Expr, _ValArray, \
379 _Dom, typename _Dom::value_type>, \
380 typename __fun<_Name, typename _Dom::value_type>::result_type> \
381 operator _Op(const _Expr<_Dom,typename _Dom::value_type>& __e, \
382 const valarray<typename _Dom::value_type>& __v) \
383 { \
384 typedef typename _Dom::value_type _Arg; \
385 typedef typename __fun<_Name, _Arg>::result_type _Value; \
386 typedef _BinClos<_Name, _Expr, _ValArray, _Dom, _Arg> _Closure; \
387 return _Expr<_Closure, _Value>(_Closure(__e(), __v)); \
388 } \
389 \
390 template<class _Dom> \
391 inline _Expr<_BinClos<_Name, _ValArray, _Expr, \
392 typename _Dom::value_type, _Dom>, \
393 typename __fun<_Name, typename _Dom::value_type>::result_type> \
394 operator _Op(const valarray<typename _Dom::value_type>& __v, \
395 const _Expr<_Dom, typename _Dom::value_type>& __e) \
396 { \
397 typedef typename _Dom::value_type _Tp; \
398 typedef typename __fun<_Name, _Tp>::result_type _Value; \
399 typedef _BinClos<_Name, _ValArray, _Expr, _Tp, _Dom> _Closure; \
400 return _Expr<_Closure, _Value>(_Closure(__v, __e ())); \
401 }
402
403 _DEFINE_EXPR_BINARY_OPERATOR(+, __plus)
404 _DEFINE_EXPR_BINARY_OPERATOR(-, __minus)
405 _DEFINE_EXPR_BINARY_OPERATOR(*, __multiplies)
406 _DEFINE_EXPR_BINARY_OPERATOR(/, __divides)
407 _DEFINE_EXPR_BINARY_OPERATOR(%, __modulus)
408 _DEFINE_EXPR_BINARY_OPERATOR(^, __bitwise_xor)
409 _DEFINE_EXPR_BINARY_OPERATOR(&, __bitwise_and)
410 _DEFINE_EXPR_BINARY_OPERATOR(|, __bitwise_or)
411 _DEFINE_EXPR_BINARY_OPERATOR(<<, __shift_left)
412 _DEFINE_EXPR_BINARY_OPERATOR(>>, __shift_right)
413 _DEFINE_EXPR_BINARY_OPERATOR(&&, __logical_and)
414 _DEFINE_EXPR_BINARY_OPERATOR(||, __logical_or)
415 _DEFINE_EXPR_BINARY_OPERATOR(==, __equal_to)
416 _DEFINE_EXPR_BINARY_OPERATOR(!=, __not_equal_to)
417 _DEFINE_EXPR_BINARY_OPERATOR(<, __less)
418 _DEFINE_EXPR_BINARY_OPERATOR(>, __greater)
419 _DEFINE_EXPR_BINARY_OPERATOR(<=, __less_equal)
420 _DEFINE_EXPR_BINARY_OPERATOR(>=, __greater_equal)
421
422#undef _DEFINE_EXPR_BINARY_OPERATOR
423
424#define _DEFINE_EXPR_UNARY_FUNCTION(_Name, _UName) \
425 template<class _Dom> \
426 inline _Expr<_UnClos<_UName, _Expr, _Dom>, \
427 typename _Dom::value_type> \
428 _Name(const _Expr<_Dom, typename _Dom::value_type>& __e) \
429 { \
430 typedef typename _Dom::value_type _Tp; \
431 typedef _UnClos<_UName, _Expr, _Dom> _Closure; \
432 return _Expr<_Closure, _Tp>(_Closure(__e())); \
433 } \
434 \
435 template<typename _Tp> \
436 inline _Expr<_UnClos<_UName, _ValArray, _Tp>, _Tp> \
437 _Name(const valarray<_Tp>& __v) \
438 { \
439 typedef _UnClos<_UName, _ValArray, _Tp> _Closure; \
440 return _Expr<_Closure, _Tp>(_Closure(__v)); \
441 }
442
443 _DEFINE_EXPR_UNARY_FUNCTION(abs, _Abs)
444 _DEFINE_EXPR_UNARY_FUNCTION(cos, _Cos)
445 _DEFINE_EXPR_UNARY_FUNCTION(acos, _Acos)
446 _DEFINE_EXPR_UNARY_FUNCTION(cosh, _Cosh)
447 _DEFINE_EXPR_UNARY_FUNCTION(sin, _Sin)
448 _DEFINE_EXPR_UNARY_FUNCTION(asin, _Asin)
449 _DEFINE_EXPR_UNARY_FUNCTION(sinh, _Sinh)
450 _DEFINE_EXPR_UNARY_FUNCTION(tan, _Tan)
451 _DEFINE_EXPR_UNARY_FUNCTION(tanh, _Tanh)
452 _DEFINE_EXPR_UNARY_FUNCTION(atan, _Atan)
453 _DEFINE_EXPR_UNARY_FUNCTION(exp, _Exp)
454 _DEFINE_EXPR_UNARY_FUNCTION(log, _Log)
455 _DEFINE_EXPR_UNARY_FUNCTION(log10, _Log10)
456 _DEFINE_EXPR_UNARY_FUNCTION(sqrt, _Sqrt)
457
458#undef _DEFINE_EXPR_UNARY_FUNCTION
459
460#define _DEFINE_EXPR_BINARY_FUNCTION(_Fun, _UFun) \
461 template<class _Dom1, class _Dom2> \
462 inline _Expr<_BinClos<_UFun, _Expr, _Expr, _Dom1, _Dom2>, \
463 typename _Dom1::value_type> \
464 _Fun(const _Expr<_Dom1, typename _Dom1::value_type>& __e1, \
465 const _Expr<_Dom2, typename _Dom2::value_type>& __e2) \
466 { \
467 typedef typename _Dom1::value_type _Tp; \
468 typedef _BinClos<_UFun, _Expr, _Expr, _Dom1, _Dom2> _Closure; \
469 return _Expr<_Closure, _Tp>(_Closure(__e1(), __e2())); \
470 } \
471 \
472 template<class _Dom> \
473 inline _Expr<_BinClos<_UFun, _Expr, _ValArray, _Dom, \
474 typename _Dom::value_type>, \
475 typename _Dom::value_type> \
476 _Fun(const _Expr<_Dom, typename _Dom::value_type>& __e, \
477 const valarray<typename _Dom::value_type>& __v) \
478 { \
479 typedef typename _Dom::value_type _Tp; \
480 typedef _BinClos<_UFun, _Expr, _ValArray, _Dom, _Tp> _Closure; \
481 return _Expr<_Closure, _Tp>(_Closure(__e(), __v)); \
482 } \
483 \
484 template<class _Dom> \
485 inline _Expr<_BinClos<_UFun, _ValArray, _Expr, \
486 typename _Dom::value_type, _Dom>, \
487 typename _Dom::value_type> \
488 _Fun(const valarray<typename _Dom::valarray>& __v, \
489 const _Expr<_Dom, typename _Dom::value_type>& __e) \
490 { \
491 typedef typename _Dom::value_type _Tp; \
492 typedef _BinClos<_UFun, _ValArray, _Expr, _Tp, _Dom> _Closure; \
493 return _Expr<_Closure, _Tp>(_Closure(__v, __e())); \
494 } \
495 \
496 template<class _Dom> \
497 inline _Expr<_BinClos<_UFun, _Expr, _Constant, _Dom, \
498 typename _Dom::value_type>, \
499 typename _Dom::value_type> \
500 _Fun(const _Expr<_Dom, typename _Dom::value_type>& __e, \
501 const typename _Dom::value_type& __t) \
502 { \
503 typedef typename _Dom::value_type _Tp; \
504 typedef _BinClos<_UFun, _Expr, _Constant, _Dom, _Tp> _Closure; \
505 return _Expr<_Closure, _Tp>(_Closure(__e(), __t)); \
506 } \
507 \
508 template<class _Dom> \
509 inline _Expr<_BinClos<_UFun, _Constant, _Expr, \
510 typename _Dom::value_type, _Dom>, \
511 typename _Dom::value_type> \
512 _Fun(const typename _Dom::value_type& __t, \
513 const _Expr<_Dom, typename _Dom::value_type>& __e) \
514 { \
515 typedef typename _Dom::value_type _Tp; \
516 typedef _BinClos<_UFun, _Constant, _Expr, _Tp, _Dom> _Closure; \
517 return _Expr<_Closure, _Tp>(_Closure(__t, __e())); \
518 } \
519 \
520 template<typename _Tp> \
521 inline _Expr<_BinClos<_UFun, _ValArray, _ValArray, _Tp, _Tp>, _Tp> \
522 _Fun(const valarray<_Tp>& __v, const valarray<_Tp>& __w) \
523 { \
524 typedef _BinClos<_UFun, _ValArray, _ValArray, _Tp, _Tp> _Closure;\
525 return _Expr<_Closure, _Tp>(_Closure(__v, __w)); \
526 } \
527 \
528 template<typename _Tp> \
529 inline _Expr<_BinClos<_UFun, _ValArray, _Constant, _Tp, _Tp>, _Tp> \
530 _Fun(const valarray<_Tp>& __v, const _Tp& __t) \
531 { \
532 typedef _BinClos<_UFun, _ValArray, _Constant, _Tp, _Tp> _Closure;\
533 return _Expr<_Closure, _Tp>(_Closure(__v, __t)); \
534 } \
535 \
536 template<typename _Tp> \
537 inline _Expr<_BinClos<_UFun, _Constant, _ValArray, _Tp, _Tp>, _Tp> \
538 _Fun(const _Tp& __t, const valarray<_Tp>& __v) \
539 { \
540 typedef _BinClos<_UFun, _Constant, _ValArray, _Tp, _Tp> _Closure;\
541 return _Expr<_Closure, _Tp>(_Closure(__t, __v)); \
542 }
543
544_DEFINE_EXPR_BINARY_FUNCTION(atan2, _Atan2)
545_DEFINE_EXPR_BINARY_FUNCTION(pow, _Pow)
546
547#undef _DEFINE_EXPR_BINARY_FUNCTION
548
549_GLIBCXX_END_NAMESPACE_VERSION
550} // namespace
551
552#endif /* _CPP_VALARRAY_AFTER_H */