Initial bulk commit for "Git on MSys"
[msysgit/historical-msysgit.git] / mingw / include / c++ / 3.4.2 / bits / valarray_after.h
blobb74cab5dbac3645f04c73708a347ca5ad0b28b32
1 // The template and inlines for the -*- C++ -*- internal _Meta class.
3 // Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
4 //
5 // This file is part of the GNU ISO C++ Library. This library is free
6 // software; you can redistribute it and/or modify it under the
7 // terms of the GNU General Public License as published by the
8 // Free Software Foundation; either version 2, or (at your option)
9 // any later version.
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 // GNU General Public License for more details.
16 // You should have received a copy of the GNU General Public License along
17 // with this library; see the file COPYING. If not, write to the Free
18 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
19 // USA.
21 // As a special exception, you may use this file as part of a free software
22 // library without restriction. Specifically, if other files instantiate
23 // templates or use macros or inline functions from this file, or you compile
24 // this file and link it with other files to produce an executable, this
25 // file does not by itself cause the resulting executable to be covered by
26 // the GNU General Public License. This exception does not however
27 // invalidate any other reasons why the executable file might be covered by
28 // the GNU General Public License.
30 // Written by Gabriel Dos Reis <Gabriel.Dos-Reis@cmla.ens-cachan.fr>
32 /** @file valarray_meta.h
33 * This is an internal header file, included by other library headers.
34 * You should not attempt to use it directly.
37 #ifndef _VALARRAY_AFTER_H
38 #define _VALARRAY_AFTER_H 1
40 #pragma GCC system_header
42 namespace std
46 // gslice_array closure.
48 template<class _Dom> class _GBase {
49 public:
50 typedef typename _Dom::value_type value_type;
52 _GBase (const _Dom& __e, const valarray<size_t>& __i)
53 : _M_expr (__e), _M_index(__i) {}
54 value_type operator[] (size_t __i) const
55 { return _M_expr[_M_index[__i]]; }
56 size_t size () const { return _M_index.size(); }
58 private:
59 const _Dom& _M_expr;
60 const valarray<size_t>& _M_index;
63 template<typename _Tp> class _GBase<_Array<_Tp> > {
64 public:
65 typedef _Tp value_type;
67 _GBase (_Array<_Tp> __a, const valarray<size_t>& __i)
68 : _M_array (__a), _M_index(__i) {}
69 value_type operator[] (size_t __i) const
70 { return _M_array._M_data[_M_index[__i]]; }
71 size_t size () const { return _M_index.size(); }
73 private:
74 const _Array<_Tp> _M_array;
75 const valarray<size_t>& _M_index;
78 template<class _Dom> struct _GClos<_Expr,_Dom> : _GBase<_Dom> {
79 typedef _GBase<_Dom> _Base;
80 typedef typename _Base::value_type value_type;
82 _GClos (const _Dom& __e, const valarray<size_t>& __i)
83 : _Base (__e, __i) {}
86 template<typename _Tp>
87 struct _GClos<_ValArray,_Tp> : _GBase<_Array<_Tp> > {
88 typedef _GBase<_Array<_Tp> > _Base;
89 typedef typename _Base::value_type value_type;
91 _GClos (_Array<_Tp> __a, const valarray<size_t>& __i)
92 : _Base (__a, __i) {}
96 // indirect_array closure
98 template<class _Dom> class _IBase {
99 public:
100 typedef typename _Dom::value_type value_type;
102 _IBase (const _Dom& __e, const valarray<size_t>& __i)
103 : _M_expr (__e), _M_index (__i) {}
104 value_type operator[] (size_t __i) const
105 { return _M_expr[_M_index[__i]]; }
106 size_t size() const { return _M_index.size(); }
108 private:
109 const _Dom& _M_expr;
110 const valarray<size_t>& _M_index;
113 template<class _Dom> struct _IClos<_Expr,_Dom> : _IBase<_Dom> {
114 typedef _IBase<_Dom> _Base;
115 typedef typename _Base::value_type value_type;
117 _IClos (const _Dom& __e, const valarray<size_t>& __i)
118 : _Base (__e, __i) {}
121 template<typename _Tp>
122 struct _IClos<_ValArray,_Tp> : _IBase<valarray<_Tp> > {
123 typedef _IBase<valarray<_Tp> > _Base;
124 typedef _Tp value_type;
126 _IClos (const valarray<_Tp>& __a, const valarray<size_t>& __i)
127 : _Base (__a, __i) {}
131 // class _Expr
133 template<class _Clos, typename _Tp>
134 class _Expr
136 public:
137 typedef _Tp value_type;
139 _Expr(const _Clos&);
141 const _Clos& operator()() const;
143 value_type operator[](size_t) const;
144 valarray<value_type> operator[](slice) const;
145 valarray<value_type> operator[](const gslice&) const;
146 valarray<value_type> operator[](const valarray<bool>&) const;
147 valarray<value_type> operator[](const valarray<size_t>&) const;
149 _Expr<_UnClos<__unary_plus,std::_Expr,_Clos>, value_type>
150 operator+() const;
152 _Expr<_UnClos<__negate,std::_Expr,_Clos>, value_type>
153 operator-() const;
155 _Expr<_UnClos<__bitwise_not,std::_Expr,_Clos>, value_type>
156 operator~() const;
158 _Expr<_UnClos<__logical_not,std::_Expr,_Clos>, bool>
159 operator!() const;
161 size_t size() const;
162 value_type sum() const;
164 valarray<value_type> shift(int) const;
165 valarray<value_type> cshift(int) const;
167 value_type min() const;
168 value_type max() const;
170 valarray<value_type> apply(value_type (*)(const value_type&)) const;
171 valarray<value_type> apply(value_type (*)(value_type)) const;
173 private:
174 const _Clos _M_closure;
177 template<class _Clos, typename _Tp>
178 inline
179 _Expr<_Clos,_Tp>::_Expr(const _Clos& __c) : _M_closure(__c) {}
181 template<class _Clos, typename _Tp>
182 inline const _Clos&
183 _Expr<_Clos,_Tp>::operator()() const
184 { return _M_closure; }
186 template<class _Clos, typename _Tp>
187 inline _Tp
188 _Expr<_Clos,_Tp>::operator[](size_t __i) const
189 { return _M_closure[__i]; }
191 template<class _Clos, typename _Tp>
192 inline valarray<_Tp>
193 _Expr<_Clos,_Tp>::operator[](slice __s) const
194 { return _M_closure[__s]; }
196 template<class _Clos, typename _Tp>
197 inline valarray<_Tp>
198 _Expr<_Clos,_Tp>::operator[](const gslice& __gs) const
199 { return _M_closure[__gs]; }
201 template<class _Clos, typename _Tp>
202 inline valarray<_Tp>
203 _Expr<_Clos,_Tp>::operator[](const valarray<bool>& __m) const
204 { return _M_closure[__m]; }
206 template<class _Clos, typename _Tp>
207 inline valarray<_Tp>
208 _Expr<_Clos,_Tp>::operator[](const valarray<size_t>& __i) const
209 { return _M_closure[__i]; }
211 template<class _Clos, typename _Tp>
212 inline size_t
213 _Expr<_Clos,_Tp>::size() const { return _M_closure.size (); }
215 template<class _Clos, typename _Tp>
216 inline valarray<_Tp>
217 _Expr<_Clos, _Tp>::shift(int __n) const
218 { return valarray<_Tp>(_M_closure).shift(__n); }
220 template<class _Clos, typename _Tp>
221 inline valarray<_Tp>
222 _Expr<_Clos, _Tp>::cshift(int __n) const
223 { return valarray<_Tp>(_M_closure).cshift(__n); }
225 template<class _Clos, typename _Tp>
226 inline valarray<_Tp>
227 _Expr<_Clos, _Tp>::apply(_Tp __f(const _Tp&)) const
228 { return valarray<_Tp>(_M_closure).apply(__f); }
230 template<class _Clos, typename _Tp>
231 inline valarray<_Tp>
232 _Expr<_Clos, _Tp>::apply(_Tp __f(_Tp)) const
233 { return valarray<_Tp>(_M_closure).apply(__f); }
235 // XXX: replace this with a more robust summation algorithm.
236 template<class _Clos, typename _Tp>
237 inline _Tp
238 _Expr<_Clos,_Tp>::sum() const
240 size_t __n = _M_closure.size();
241 if (__n == 0)
242 return _Tp();
243 else
245 _Tp __s = _M_closure[--__n];
246 while (__n != 0)
247 __s += _M_closure[--__n];
248 return __s;
252 template<class _Clos, typename _Tp>
253 inline _Tp
254 _Expr<_Clos, _Tp>::min() const
255 { return __valarray_min(_M_closure); }
257 template<class _Clos, typename _Tp>
258 inline _Tp
259 _Expr<_Clos, _Tp>::max() const
260 { return __valarray_max(_M_closure); }
262 template<class _Dom, typename _Tp>
263 inline _Expr<_UnClos<__logical_not,_Expr,_Dom>, bool>
264 _Expr<_Dom,_Tp>::operator!() const
266 typedef _UnClos<__logical_not,std::_Expr,_Dom> _Closure;
267 return _Expr<_Closure,_Tp>(_Closure(this->_M_closure));
270 #define _DEFINE_EXPR_UNARY_OPERATOR(_Op, _Name) \
271 template<class _Dom, typename _Tp> \
272 inline _Expr<_UnClos<_Name,std::_Expr,_Dom>,_Tp> \
273 _Expr<_Dom,_Tp>::operator _Op() const \
275 typedef _UnClos<_Name,std::_Expr,_Dom> _Closure; \
276 return _Expr<_Closure,_Tp>(_Closure(this->_M_closure)); \
279 _DEFINE_EXPR_UNARY_OPERATOR(+, __unary_plus)
280 _DEFINE_EXPR_UNARY_OPERATOR(-, __negate)
281 _DEFINE_EXPR_UNARY_OPERATOR(~, __bitwise_not)
283 #undef _DEFINE_EXPR_UNARY_OPERATOR
286 #define _DEFINE_EXPR_BINARY_OPERATOR(_Op, _Name) \
287 template<class _Dom1, class _Dom2> \
288 inline _Expr<_BinClos<_Name,_Expr,_Expr,_Dom1,_Dom2>, \
289 typename __fun<_Name, typename _Dom1::value_type>::result_type>\
290 operator _Op(const _Expr<_Dom1,typename _Dom1::value_type>& __v, \
291 const _Expr<_Dom2,typename _Dom2::value_type>& __w) \
293 typedef typename _Dom1::value_type _Arg; \
294 typedef typename __fun<_Name, _Arg>::result_type _Value; \
295 typedef _BinClos<_Name,_Expr,_Expr,_Dom1,_Dom2> _Closure; \
296 return _Expr<_Closure,_Value>(_Closure(__v(), __w())); \
299 template<class _Dom> \
300 inline _Expr<_BinClos<_Name,_Expr,_Constant,_Dom,typename _Dom::value_type>,\
301 typename __fun<_Name, typename _Dom::value_type>::result_type>\
302 operator _Op(const _Expr<_Dom,typename _Dom::value_type>& __v, \
303 const typename _Dom::value_type& __t) \
305 typedef typename _Dom::value_type _Arg; \
306 typedef typename __fun<_Name, _Arg>::result_type _Value; \
307 typedef _BinClos<_Name,_Expr,_Constant,_Dom,_Arg> _Closure; \
308 return _Expr<_Closure,_Value>(_Closure(__v(), __t)); \
311 template<class _Dom> \
312 inline _Expr<_BinClos<_Name,_Constant,_Expr,typename _Dom::value_type,_Dom>,\
313 typename __fun<_Name, typename _Dom::value_type>::result_type>\
314 operator _Op(const typename _Dom::value_type& __t, \
315 const _Expr<_Dom,typename _Dom::value_type>& __v) \
317 typedef typename _Dom::value_type _Arg; \
318 typedef typename __fun<_Name, _Arg>::result_type _Value; \
319 typedef _BinClos<_Name,_Constant,_Expr,_Arg,_Dom> _Closure; \
320 return _Expr<_Closure,_Value>(_Closure(__t, __v())); \
323 template<class _Dom> \
324 inline _Expr<_BinClos<_Name,_Expr,_ValArray,_Dom,typename _Dom::value_type>,\
325 typename __fun<_Name, typename _Dom::value_type>::result_type>\
326 operator _Op(const _Expr<_Dom,typename _Dom::value_type>& __e, \
327 const valarray<typename _Dom::value_type>& __v) \
329 typedef typename _Dom::value_type _Arg; \
330 typedef typename __fun<_Name, _Arg>::result_type _Value; \
331 typedef _BinClos<_Name,_Expr,_ValArray,_Dom,_Arg> _Closure; \
332 return _Expr<_Closure,_Value>(_Closure(__e(), __v)); \
335 template<class _Dom> \
336 inline _Expr<_BinClos<_Name,_ValArray,_Expr,typename _Dom::value_type,_Dom>,\
337 typename __fun<_Name, typename _Dom::value_type>::result_type>\
338 operator _Op(const valarray<typename _Dom::value_type>& __v, \
339 const _Expr<_Dom,typename _Dom::value_type>& __e) \
341 typedef typename _Dom::value_type _Tp; \
342 typedef typename __fun<_Name, _Tp>::result_type _Value; \
343 typedef _BinClos<_Name,_ValArray,_Expr,_Tp,_Dom> _Closure; \
344 return _Expr<_Closure,_Value> (_Closure (__v, __e ())); \
347 _DEFINE_EXPR_BINARY_OPERATOR(+, __plus)
348 _DEFINE_EXPR_BINARY_OPERATOR(-, __minus)
349 _DEFINE_EXPR_BINARY_OPERATOR(*, __multiplies)
350 _DEFINE_EXPR_BINARY_OPERATOR(/, __divides)
351 _DEFINE_EXPR_BINARY_OPERATOR(%, __modulus)
352 _DEFINE_EXPR_BINARY_OPERATOR(^, __bitwise_xor)
353 _DEFINE_EXPR_BINARY_OPERATOR(&, __bitwise_and)
354 _DEFINE_EXPR_BINARY_OPERATOR(|, __bitwise_or)
355 _DEFINE_EXPR_BINARY_OPERATOR(<<, __shift_left)
356 _DEFINE_EXPR_BINARY_OPERATOR(>>, __shift_right)
357 _DEFINE_EXPR_BINARY_OPERATOR(&&, __logical_and)
358 _DEFINE_EXPR_BINARY_OPERATOR(||, __logical_or)
359 _DEFINE_EXPR_BINARY_OPERATOR(==, __equal_to)
360 _DEFINE_EXPR_BINARY_OPERATOR(!=, __not_equal_to)
361 _DEFINE_EXPR_BINARY_OPERATOR(<, __less)
362 _DEFINE_EXPR_BINARY_OPERATOR(>, __greater)
363 _DEFINE_EXPR_BINARY_OPERATOR(<=, __less_equal)
364 _DEFINE_EXPR_BINARY_OPERATOR(>=, __greater_equal)
366 #undef _DEFINE_EXPR_BINARY_OPERATOR
368 #define _DEFINE_EXPR_UNARY_FUNCTION(_Name) \
369 template<class _Dom> \
370 inline _Expr<_UnClos<__##_Name,_Expr,_Dom>,typename _Dom::value_type>\
371 _Name(const _Expr<_Dom,typename _Dom::value_type>& __e) \
373 typedef typename _Dom::value_type _Tp; \
374 typedef _UnClos<__##_Name,_Expr,_Dom> _Closure; \
375 return _Expr<_Closure,_Tp>(_Closure(__e())); \
378 template<typename _Tp> \
379 inline _Expr<_UnClos<__##_Name,_ValArray,_Tp>,_Tp> \
380 _Name(const valarray<_Tp>& __v) \
382 typedef _UnClos<__##_Name,_ValArray,_Tp> _Closure; \
383 return _Expr<_Closure,_Tp>(_Closure(__v)); \
386 _DEFINE_EXPR_UNARY_FUNCTION(abs)
387 _DEFINE_EXPR_UNARY_FUNCTION(cos)
388 _DEFINE_EXPR_UNARY_FUNCTION(acos)
389 _DEFINE_EXPR_UNARY_FUNCTION(cosh)
390 _DEFINE_EXPR_UNARY_FUNCTION(sin)
391 _DEFINE_EXPR_UNARY_FUNCTION(asin)
392 _DEFINE_EXPR_UNARY_FUNCTION(sinh)
393 _DEFINE_EXPR_UNARY_FUNCTION(tan)
394 _DEFINE_EXPR_UNARY_FUNCTION(tanh)
395 _DEFINE_EXPR_UNARY_FUNCTION(atan)
396 _DEFINE_EXPR_UNARY_FUNCTION(exp)
397 _DEFINE_EXPR_UNARY_FUNCTION(log)
398 _DEFINE_EXPR_UNARY_FUNCTION(log10)
399 _DEFINE_EXPR_UNARY_FUNCTION(sqrt)
401 #undef _DEFINE_EXPR_UNARY_FUNCTION
403 #define _DEFINE_EXPR_BINARY_FUNCTION(_Fun) \
404 template<class _Dom1, class _Dom2> \
405 inline _Expr<_BinClos<__##_Fun,_Expr,_Expr,_Dom1,_Dom2>, \
406 typename _Dom1::value_type> \
407 _Fun(const _Expr<_Dom1,typename _Dom1::value_type>& __e1, \
408 const _Expr<_Dom2,typename _Dom2::value_type>& __e2) \
410 typedef typename _Dom1::value_type _Tp; \
411 typedef _BinClos<__##_Fun,_Expr,_Expr,_Dom1,_Dom2> _Closure; \
412 return _Expr<_Closure,_Tp>(_Closure(__e1(), __e2())); \
415 template<class _Dom> \
416 inline _Expr<_BinClos<__##_Fun, _Expr, _ValArray, _Dom, \
417 typename _Dom::value_type>, \
418 typename _Dom::value_type> \
419 _Fun(const _Expr<_Dom,typename _Dom::value_type>& __e, \
420 const valarray<typename _Dom::value_type>& __v) \
422 typedef typename _Dom::value_type _Tp; \
423 typedef _BinClos<__##_Fun, _Expr, _ValArray, _Dom, _Tp> _Closure;\
424 return _Expr<_Closure,_Tp>(_Closure(__e(), __v)); \
427 template<class _Dom> \
428 inline _Expr<_BinClos<__##_Fun, _ValArray, _Expr, \
429 typename _Dom::value_type,_Dom>, \
430 typename _Dom::value_type> \
431 _Fun(const valarray<typename _Dom::valarray>& __v, \
432 const _Expr<_Dom,typename _Dom::value_type>& __e) \
434 typedef typename _Dom::value_type _Tp; \
435 typedef _BinClos<__##_Fun,_ValArray,_Expr,_Tp,_Dom> _Closure; \
436 return _Expr<_Closure,_Tp>(_Closure(__v, __e())); \
439 template<class _Dom> \
440 inline _Expr<_BinClos<__##_Fun,_Expr,_Constant,_Dom, \
441 typename _Dom::value_type>, \
442 typename _Dom::value_type> \
443 _Fun(const _Expr<_Dom, typename _Dom::value_type>& __e, \
444 const typename _Dom::value_type& __t) \
446 typedef typename _Dom::value_type _Tp; \
447 typedef _BinClos<__##_Fun,_Expr,_Constant,_Dom,_Tp> _Closure; \
448 return _Expr<_Closure,_Tp>(_Closure(__e(), __t)); \
451 template<class _Dom> \
452 inline _Expr<_BinClos<__##_Fun,_Constant,_Expr, \
453 typename _Dom::value_type,_Dom>, \
454 typename _Dom::value_type> \
455 _Fun(const typename _Dom::value_type& __t, \
456 const _Expr<_Dom,typename _Dom::value_type>& __e) \
458 typedef typename _Dom::value_type _Tp; \
459 typedef _BinClos<__##_Fun, _Constant,_Expr,_Tp,_Dom> _Closure; \
460 return _Expr<_Closure,_Tp>(_Closure(__t, __e())); \
463 template<typename _Tp> \
464 inline _Expr<_BinClos<__##_Fun,_ValArray,_ValArray,_Tp,_Tp>, _Tp> \
465 _Fun(const valarray<_Tp>& __v, const valarray<_Tp>& __w) \
467 typedef _BinClos<__##_Fun,_ValArray,_ValArray,_Tp,_Tp> _Closure; \
468 return _Expr<_Closure,_Tp>(_Closure(__v, __w)); \
471 template<typename _Tp> \
472 inline _Expr<_BinClos<__##_Fun,_ValArray,_Constant,_Tp,_Tp>,_Tp> \
473 _Fun(const valarray<_Tp>& __v, const _Tp& __t) \
475 typedef _BinClos<__##_Fun,_ValArray,_Constant,_Tp,_Tp> _Closure; \
476 return _Expr<_Closure,_Tp>(_Closure(__v, __t)); \
479 template<typename _Tp> \
480 inline _Expr<_BinClos<__##_Fun,_Constant,_ValArray,_Tp,_Tp>,_Tp> \
481 _Fun(const _Tp& __t, const valarray<_Tp>& __v) \
483 typedef _BinClos<__##_Fun,_Constant,_ValArray,_Tp,_Tp> _Closure; \
484 return _Expr<_Closure,_Tp>(_Closure(__t, __v)); \
487 _DEFINE_EXPR_BINARY_FUNCTION(atan2)
488 _DEFINE_EXPR_BINARY_FUNCTION(pow)
490 #undef _DEFINE_EXPR_BINARY_FUNCTION
492 } // std::
495 #endif /* _CPP_VALARRAY_AFTER_H */
497 // Local Variables:
498 // mode:c++
499 // End: