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metaprogramming.hxx |

1 /************************************************************************/
2 /* */
3 /* Copyright 1998-2002 by Ullrich Koethe */
4 /* */
5 /* This file is part of the VIGRA computer vision library. */
6 /* The VIGRA Website is */
7 /* http://hci.iwr.uni-heidelberg.de/vigra/ */
8 /* Please direct questions, bug reports, and contributions to */
9 /* ullrich.koethe@iwr.uni-heidelberg.de or */
10 /* vigra@informatik.uni-hamburg.de */
11 /* */
12 /* Permission is hereby granted, free of charge, to any person */
13 /* obtaining a copy of this software and associated documentation */
14 /* files (the "Software"), to deal in the Software without */
15 /* restriction, including without limitation the rights to use, */
16 /* copy, modify, merge, publish, distribute, sublicense, and/or */
17 /* sell copies of the Software, and to permit persons to whom the */
18 /* Software is furnished to do so, subject to the following */
19 /* conditions: */
20 /* */
21 /* The above copyright notice and this permission notice shall be */
22 /* included in all copies or substantial portions of the */
23 /* Software. */
24 /* */
25 /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND */
26 /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES */
27 /* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND */
28 /* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT */
29 /* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, */
30 /* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING */
31 /* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR */
32 /* OTHER DEALINGS IN THE SOFTWARE. */
33 /* */
34 /************************************************************************/
35
36 #ifndef VIGRA_METAPROGRAMMING_HXX
37 #define VIGRA_METAPROGRAMMING_HXX
38
39 #include "config.hxx"
40 #include <climits>
41 #include <limits>
42 #include <algorithm>
43
44 namespace vigra {
45
46 // mask cl.exe shortcomings [begin]
47 #if defined(_MSC_VER)
48 #pragma warning( push )
49 #pragma warning( disable : 4503 )
50 #endif
51
52 #ifdef __APPLE__
53 #include <AssertMacros.h>
54 #undef check
55 #endif
56
57 template <int N>
58 class MetaInt
59 {
60 public:
61 static const int value = N;
62 };
63
64 template <int N1, int N2>
65 class MetaMax
66 {
67 public:
68 static const int value = N1 < N2 ? N2 : N1;
69 };
70
71 template <int N1, int N2>
72 class MetaMin
73 {
74 public:
75 static const int value = N1 < N2 ? N1 : N2;
76 };
77
78 struct VigraTrueType
79 {
80 static const bool asBool = true, value = true;
81 };
82
83 struct VigraFalseType
84 {
85 static const bool asBool = false, value = false;
86 };
87
88 /** \addtogroup MultiArrayTags Multi-dimensional Array Tags
89 Meta-programming tags to mark array's as strided or unstrided.
90 */
91
92 //@{
93
94 /********************************************************/
95 /* */
96 /* tags for MultiArray memory layout */
97 /* */
98 /********************************************************/
99
100 /** tag for marking a MultiArray strided.
101
102 <b>\#include</b> <vigra/metaprogramming.hxx> <br/>
103 Namespace: vigra
104 */
105 struct StridedArrayTag {};
106
107 /** tag for marking a MultiArray unstrided.
108
109 <b>\#include</b> <vigra/metaprogramming.hxx> <br/>
110 Namespace: vigra
111 */
112 struct UnstridedArrayTag {};
113
114 /** tag for marking a MultiArray chunked.
115
116 <b>\#include</b> <vigra/metaprogramming.hxx> <br/>
117 Namespace: vigra
118 */
119 struct ChunkedArrayTag {};
120
121 /********************************************************/
122 /* */
123 /* TypeTraits */
124 /* */
125 /********************************************************/
126
127 template<class T>
128 class TypeTraits
129 {
130 public:
131 typedef VigraFalseType isConst;
132 typedef VigraFalseType isPOD;
133 typedef VigraFalseType isBuiltinType;
134 };
135
136 #ifndef NO_PARTIAL_TEMPLATE_SPECIALIZATION
137
138 template<class T>
139 class TypeTraits<T const>
140 : public TypeTraits<T>
141 {
142 public:
143 typedef VigraTrueType isConst;
144 };
145
146 template<class T>
147 class TypeTraits<T *>
148 {
149 public:
150 typedef VigraFalseType isConst;
151 typedef VigraTrueType isPOD;
152 typedef VigraTrueType isBuiltinType;
153 };
154
155 template<class T>
156 class TypeTraits<T const *>
157 {
158 public:
159 typedef VigraFalseType isConst;
160 typedef VigraTrueType isPOD;
161 typedef VigraTrueType isBuiltinType;
162 };
163
164 #endif // NO_PARTIAL_TEMPLATE_SPECIALIZATION
165
166 namespace detail {
167
168 template <int size>
169 struct SizeToType;
170
171 } // namespace detail
172
173 #define VIGRA_TYPE_TRAITS(type, size) \
174 template<> \
175 class TypeTraits<type> \
176 { \
177 public: \
178 typedef VigraFalseType isConst; \
179 typedef VigraTrueType isPOD; \
180 typedef VigraTrueType isBuiltinType; \
181 typedef char TypeToSize[size]; \
182 }; \
183 \
184 namespace detail { \
185 TypeTraits<type>::TypeToSize * typeToSize(type); \
186 \
187 template <> \
188 struct SizeToType<size> \
189 { \
190 typedef type result; \
191 }; \
192 }
193
194 VIGRA_TYPE_TRAITS(char, 1)
195 VIGRA_TYPE_TRAITS(signed char, 2)
196 VIGRA_TYPE_TRAITS(unsigned char, 3)
197 VIGRA_TYPE_TRAITS(short, 4)
198 VIGRA_TYPE_TRAITS(unsigned short, 5)
199 VIGRA_TYPE_TRAITS(int, 6)
200 VIGRA_TYPE_TRAITS(unsigned int, 7)
201 VIGRA_TYPE_TRAITS(long, 8)
202 VIGRA_TYPE_TRAITS(unsigned long, 9)
203 VIGRA_TYPE_TRAITS(float, 10)
204 VIGRA_TYPE_TRAITS(double, 11)
205 VIGRA_TYPE_TRAITS(long double, 12)
206 #ifdef LLONG_MAX
207 VIGRA_TYPE_TRAITS(long long, 13)
208 VIGRA_TYPE_TRAITS(unsigned long long, 14)
209 #endif
210
211 #undef VIGRA_TYPE_TRAITS
212
213 //@}
214
215 template <class A>
216 struct Not;
217
218 template <>
219 struct Not<VigraTrueType>
220 {
221 typedef VigraFalseType result; // deprecated
222 static const bool boolResult = false; // deprecated
223 typedef VigraFalseType type;
224 static const bool value = false;
225 };
226
227 template <>
228 struct Not<VigraFalseType>
229 {
230 typedef VigraTrueType result; // deprecated
231 static const bool boolResult = true; // deprecated
232 typedef VigraTrueType type;
233 static const bool value = true;
234 };
235
236 template <class L, class R>
237 struct And;
238
239 template <>
240 struct And<VigraFalseType, VigraFalseType>
241 {
242 typedef VigraFalseType result; // deprecated
243 static const bool boolResult = false; // deprecated
244 typedef VigraFalseType type;
245 static const bool value = false;
246 };
247
248 template <>
249 struct And<VigraFalseType, VigraTrueType>
250 {
251 typedef VigraFalseType result; // deprecated
252 static const bool boolResult = false; // deprecated
253 typedef VigraFalseType type;
254 static const bool value = false;
255 };
256
257 template <>
258 struct And<VigraTrueType, VigraFalseType>
259 {
260 typedef VigraFalseType result; // deprecated
261 static const bool boolResult = false; // deprecated
262 typedef VigraFalseType type;
263 static const bool value = false;
264 };
265
266 template <>
267 struct And<VigraTrueType, VigraTrueType>
268 {
269 typedef VigraTrueType result; // deprecated
270 static const bool boolResult = true; // deprecated
271 typedef VigraTrueType type;
272 static const bool value = true;
273 };
274
275 template <class L, class R>
276 struct Or;
277
278 template <>
279 struct Or<VigraFalseType, VigraFalseType>
280 {
281 typedef VigraFalseType result; // deprecated
282 static const bool boolResult = false; // deprecated
283 typedef VigraFalseType type;
284 static const bool value = false;
285 };
286
287 template <>
288 struct Or<VigraTrueType, VigraFalseType>
289 {
290 typedef VigraTrueType result; // deprecated
291 static const bool boolResult = true; // deprecated
292 typedef VigraTrueType type;
293 static const bool value = true;
294 };
295
296 template <>
297 struct Or<VigraFalseType, VigraTrueType>
298 {
299 typedef VigraTrueType result; // deprecated
300 static const bool boolResult = true; // deprecated
301 typedef VigraTrueType type;
302 static const bool value = true;
303 };
304
305 template <>
306 struct Or<VigraTrueType, VigraTrueType>
307 {
308 typedef VigraTrueType result; // deprecated
309 static const bool boolResult = true; // deprecated
310 typedef VigraTrueType type;
311 static const bool value = true;
312 };
313
314 #ifndef NO_PARTIAL_TEMPLATE_SPECIALIZATION
315
316 template <class PREDICATE, class TRUECASE, class FALSECASE>
317 struct If;
318
319 template <class TRUECASE, class FALSECASE>
320 struct If<VigraTrueType, TRUECASE, FALSECASE>
321 {
322 typedef TRUECASE type;
323 };
324
325 template <class TRUECASE, class FALSECASE>
326 struct If<VigraFalseType, TRUECASE, FALSECASE>
327 {
328 typedef FALSECASE type;
329 };
330
331 template <bool PREDICATE, class TRUECASE, class FALSECASE>
332 struct IfBool;
333
334 template <class TRUECASE, class FALSECASE>
335 struct IfBool<true, TRUECASE, FALSECASE>
336 {
337 typedef TRUECASE type;
338 };
339
340 template <class TRUECASE, class FALSECASE>
341 struct IfBool<false, TRUECASE, FALSECASE>
342 {
343 typedef FALSECASE type;
344 };
345
346 template <class L, class R>
347 struct IsSameType
348 {
349 typedef VigraFalseType result; // deprecated
350 static const bool boolResult = false; // deprecated
351 typedef VigraFalseType type;
352 static const bool value = false;
353 };
354
355 template <class T>
356 struct IsSameType<T, T>
357 {
358 typedef VigraTrueType result; // deprecated
359 static const bool boolResult = true; // deprecated
360 typedef VigraTrueType type;
361 static const bool value = true;
362 };
363
364 template <class L, class R>
365 struct IsDifferentType
366 {
367 typedef VigraTrueType type;
368 static const bool value = true;
369 };
370
371 template <class T>
372 struct IsDifferentType<T, T>
373 {
374 typedef VigraFalseType type;
375 static const bool value = false;
376 };
377
378 #endif // NO_PARTIAL_TEMPLATE_SPECIALIZATION
379
380 template <class From, class To>
381 struct IsConvertibleTo
382 {
383 typedef char falseResult[1];
384 typedef char trueResult[2];
385
386 static From const & check();
387
388 static falseResult * testIsConvertible(...);
389 static trueResult * testIsConvertible(To const &);
390
391 enum { resultSize = sizeof(*testIsConvertible(check())) };
392
393 static const bool value = (resultSize == 2);
394 typedef typename
395 IfBool<value, VigraTrueType, VigraFalseType>::type
396 type;
397 };
398
399 template <class DERIVED, class BASE>
400 struct IsDerivedFrom
401 {
402 typedef char falseResult[1];
403 typedef char trueResult[2];
404
405 static falseResult * testIsDerivedFrom(...);
406 static trueResult * testIsDerivedFrom(BASE const *);
407
408 enum { resultSize = sizeof(*testIsDerivedFrom(static_cast<DERIVED const *>(0))) };
409
410 static const bool value = (resultSize == 2);
411 typedef typename
412 IfBool<value, VigraTrueType, VigraFalseType>::type
413 type;
414
415 static const bool boolResult = value; // deprecated
416 typedef type result; // deprecated
417 };
418
419 template <class T>
420 struct UnqualifiedType
421 {
422 typedef T type;
423 static const bool isConst = false;
424 static const bool isReference = false;
425 static const bool isPointer = false;
426 };
427
428 template <class T>
429 struct UnqualifiedType<T const>
430 {
431 typedef T type;
432 static const bool isConst = true;
433 static const bool isReference = false;
434 static const bool isPointer = false;
435 };
436
437 template <class T>
438 struct UnqualifiedType<T &>
439 : public UnqualifiedType<T>
440 {
441 static const bool isReference = true;
442 };
443
444 template <class T>
445 struct UnqualifiedType<T const &>
446 : public UnqualifiedType<T const>
447 {
448 static const bool isReference = true;
449 };
450
451 template <class T>
452 struct UnqualifiedType<T *>
453 : public UnqualifiedType<T>
454 {
455 static const bool isPointer = true;
456 };
457
458 template <class T>
459 struct UnqualifiedType<T const *>
460 : public UnqualifiedType<T const>
461 {
462 static const bool isPointer = true;
463 };
464
465 template <bool, class T = void>
466 struct enable_if {};
467 template <class T>
468 struct enable_if<true, T> { typedef T type; };
469
470 struct sfinae_void;
471
472 template <class T, template<class> class USER>
473 struct sfinae_test
474 {
475 typedef char falseResult[1];
476 typedef char trueResult[2];
477
478 static falseResult * test(...);
479 static trueResult * test(USER<sfinae_void>);
480
481 enum { resultSize = sizeof(*test(static_cast<T*>(0))) };
482
483 static const bool value = (resultSize == 2);
484 typedef typename
485 IfBool<value, VigraTrueType, VigraFalseType>::type
486 type;
487 };
488
489 template <class T>
490 struct has_argument_type : public sfinae_test<T, has_argument_type>
491 {
492 template <class U> has_argument_type(U*, typename U::argument_type* = 0);
493 };
494
495 template <class T>
496 struct has_result_type : public sfinae_test<T, has_result_type>
497 {
498 template <class U> has_result_type(U*, typename U::result_type* = 0);
499 };
500
501 template <class T>
502 struct has_value_type : public sfinae_test<T, has_value_type>
503 {
504 template <class U> has_value_type(U*, typename U::value_type* = 0);
505 };
506
507 template <class T>
508 struct IsIterator : public sfinae_test<T, IsIterator>
509 {
510 template <class U> IsIterator(U*, typename U::iterator_category* = 0);
511 };
512
513 template <class T>
514 struct IsIterator<T*>
515 {
516 static const bool value = true;
517 typedef VigraTrueType type;
518 };
519
520 template <class T>
521 struct IsIterator<T const *>
522 {
523 static const bool value = true;
524 typedef VigraTrueType type;
525 };
526
527 template <class T>
528 struct has_real_promote_type : public sfinae_test<T, has_real_promote_type>
529 {
530 template <class U>
531 has_real_promote_type(U*, typename U::real_promote_type* = 0);
532 };
533
534 template <class T, bool P = has_real_promote_type<T>::value>
535 struct get_optional_real_promote
536 {
537 typedef T type;
538 };
539 template <class T>
540 struct get_optional_real_promote<T, true>
541 {
542 typedef typename T::real_promote_type type;
543 };
544
545 template <class T>
546 struct IsArray
547 {
548 typedef char falseResult[1];
549 typedef char trueResult[2];
550
551 static falseResult * test(...);
552 template <class U, unsigned n>
553 static trueResult * test(U (*)[n]);
554
555 enum { resultSize = sizeof(*test(static_cast<T*>(0))) };
556
557 static const bool value = (resultSize == 2);
558 typedef typename
559 IfBool<value, VigraTrueType, VigraFalseType>::type
560 type;
561 };
562
563
564 template <class D, class B, class Z> inline
565 D & static_cast_2(Z & z)
566 {
567 return static_cast<D &>(static_cast<B &>(z));
568 }
569
570 template <class A>
571 class copy_if_same_as
572 {
573 const bool copied;
574 const A *const data;
575 copy_if_same_as(const copy_if_same_as &);
576 void operator=(const copy_if_same_as &);
577 public:
578 copy_if_same_as(const A & x, const A & y)
579 : copied(&x == &y), data(copied ? new A(y) : &x) {}
580 ~copy_if_same_as()
581 {
582 if (copied)
583 delete data;
584 }
585 const A & operator()() const { return *data; }
586 };
587
588
589 template <class>
590 struct true_test : public VigraTrueType {};
591
592 template <class>
593 struct false_test : VigraFalseType {};
594
595 template <class PC, class T, class F>
596 struct ChooseBool
597 {
598 static const bool value = IfBool<PC::value, T, F>::type::value;
599 };
600
601 template <bool>
602 struct choose_type
603 {
604 template <class A, class B>
605 static const A & at(const A & a, const B &) { return a; }
606 template <class A, class B>
607 static A & at( A & a, B &) { return a; }
608 };
609 template <>
610 struct choose_type<false>
611 {
612 template <class A, class B>
613 static const B & at(const A &, const B & b) { return b; }
614 template <class A, class B>
615 static B & at( A &, B & b) { return b; }
616 };
617
618 template <class X>
619 struct HasMetaLog2
620 {
621 static const bool value = !std::numeric_limits<X>::is_signed
622 && std::numeric_limits<X>::is_integer;
623 };
624 template <class X>
625 struct EnableMetaLog2
626 : public enable_if<HasMetaLog2<X>::value> {};
627 template <class>
628 class vigra_error_MetaLog2_accepts_only_unsigned_types_and_no_;
629
630 // use a conforming template depth here (below 15 for up to 128 bits)
631 template <class X = unsigned long,
632 X n = ~(X(0)), unsigned s = 1, unsigned t = 0, bool q = 1,
633 X m = 0, X z = 0, X u = 1, class = void>
634 class MetaLog2
635 : public vigra_error_MetaLog2_accepts_only_unsigned_types_and_no_<X>
636 {};
637 template <class X, X n, unsigned s, unsigned t, bool q, X m, X z, X u>
638 struct MetaLog2 <X, n, s, t, q, m, z, u, typename EnableMetaLog2<X>::type>
639 {
640 static const unsigned value
641 = t + MetaLog2<X, (n >> s), s * (1 + q), s, !q, n / 2, z, u>::value;
642 };
643 template <class X, unsigned s, unsigned t, bool q, X m, X z, X u>
644 struct MetaLog2<X, z, s, t, q, m, z, u, typename EnableMetaLog2<X>::type>
645 {
646 static const unsigned value
647 = 1 + MetaLog2<X, m / 2, 2, 1, 1, 0, z, u>::value;
648 };
649 template <class X, unsigned s, unsigned t, bool q, X z, X u>
650 struct MetaLog2<X, z, s, t, q, u, z, u, typename EnableMetaLog2<X>::type>
651 {
652 static const unsigned value = 2;
653 };
654 template <class X, unsigned s, unsigned t, bool q, X z, X u>
655 struct MetaLog2<X, z, s, t, q, z, z, u, typename EnableMetaLog2<X>::type>
656 {
657 static const unsigned value = 1;
658 };
659 template <class X, X z, X u>
660 struct MetaLog2<X, z, 1, 0, 1, z, z, u, typename EnableMetaLog2<X>::type>
661 {
662 // A value of zero for MetaLog2<X, 0> is likely to cause most harm,
663 // such as division by zero or zero array sizes, this is actually indended.
664 static const unsigned value = 0;
665 };
666
667 template <int X, unsigned int N>
668 struct MetaPow
669 {
670 static const long long value = MetaPow<X, N-1>::value * X;
671 };
672
673 template <int X>
674 struct MetaPow<X, 0>
675 {
676 static const long long value = 1;
677 };
678
679 /****************************************************************************/
680 /* */
681 /* TypeList and its functions */
682 /* */
683 /****************************************************************************/
684
685 template<class HEAD, class TAIL=void>
686 struct TypeList
687 {
688 typedef TypeList<HEAD, TAIL> type;
689 typedef HEAD Head;
690 typedef TAIL Tail;
691 };
692
693 template <class List, class T>
694 struct Contains;
695
696 template <class Head, class Tail, class T>
697 struct Contains<TypeList<Head, Tail>, T>
698 {
699 typedef typename Contains<Tail, T>::type type;
700 };
701
702 template <class Head, class Tail>
703 struct Contains<TypeList<Head, Tail>, Head>
704 {
705 typedef VigraTrueType type;
706 };
707
708 template <class T>
709 struct Contains<void, T>
710 {
711 typedef VigraFalseType type;
712 };
713
714 template <class List, class T>
715 struct Remove;
716
717 template <class Head, class Tail, class T>
718 struct Remove<TypeList<Head, Tail>, T>
719 {
720 typedef TypeList<Head, typename Remove<Tail, T>::type> type;
721 };
722
723 template <class Head, class Tail>
724 struct Remove<TypeList<Head, Tail>, Head>
725 {
726 typedef Tail type;
727 };
728
729 template <class T>
730 struct Remove<void, T>
731 {
732 typedef void type;
733 };
734
735 template <class A, class Tail=void>
736 struct Push
737 {
738 typedef TypeList<A, typename Tail::type> type;
739 };
740
741 template <class Head, class Tail, class List>
742 struct Push<TypeList<Head, Tail>, List>
743 {
744 typedef typename Push<Tail, List>::type Rest;
745 typedef TypeList<Head, Rest> type;
746 };
747
748 template <class Head, class Tail>
749 struct Push<TypeList<Head, Tail>, void>
750 {
751 typedef TypeList<Head, Tail> type;
752 };
753
754 template <class A>
755 struct Push<A, void>
756 {
757 typedef TypeList<A> type;
758 };
759
760 template <class A>
761 struct Push<void, A>
762 {
763 typedef A type;
764 };
765
766 template <>
767 struct Push<void, void>
768 {
769 typedef void type;
770 };
771
772 template <class A, class Tail=void>
773 struct PushUnique
774 {
775 typedef typename Contains<Tail, A>::type AlreadyInList;
776 typedef typename If<AlreadyInList, typename Tail::type, TypeList<A, typename Tail::type> >::type type;
777 };
778
779 template <class Head, class Tail, class List>
780 struct PushUnique<TypeList<Head, Tail>, List>
781 {
782 typedef typename PushUnique<Tail, List>::type Rest;
783 typedef typename Contains<Rest, Head>::type HeadAlreadyInList;
784 typedef typename If<HeadAlreadyInList, Rest, TypeList<Head, Rest> >::type type;
785 };
786
787 template <class Head, class Tail>
788 struct PushUnique<TypeList<Head, Tail>, void>
789 {
790 typedef TypeList<Head, Tail> type;
791 };
792
793 template <class A>
794 struct PushUnique<A, void>
795 {
796 typedef TypeList<A> type;
797 };
798
799 template <class A>
800 struct PushUnique<void, A>
801 {
802 typedef A type;
803 };
804
805 template <>
806 struct PushUnique<void, void>
807 {
808 typedef void type;
809 };
810
811 template <class T01=void, class T02=void, class T03=void, class T04=void, class T05=void,
812 class T06=void, class T07=void, class T08=void, class T09=void, class T10=void,
813 class T11=void, class T12=void, class T13=void, class T14=void, class T15=void,
814 class T16=void, class T17=void, class T18=void, class T19=void, class T20=void>
815 struct MakeTypeList
816 {
817 typedef typename Push<T19, T20>::type L19;
818 typedef typename Push<T18, L19>::type L18;
819 typedef typename Push<T17, L18>::type L17;
820 typedef typename Push<T16, L17>::type L16;
821 typedef typename Push<T15, L16>::type L15;
822 typedef typename Push<T14, L15>::type L14;
823 typedef typename Push<T13, L14>::type L13;
824 typedef typename Push<T12, L13>::type L12;
825 typedef typename Push<T11, L12>::type L11;
826 typedef typename Push<T10, L11>::type L10;
827 typedef typename Push<T09, L10>::type L09;
828 typedef typename Push<T08, L09>::type L08;
829 typedef typename Push<T07, L08>::type L07;
830 typedef typename Push<T06, L07>::type L06;
831 typedef typename Push<T05, L06>::type L05;
832 typedef typename Push<T04, L05>::type L04;
833 typedef typename Push<T03, L04>::type L03;
834 typedef typename Push<T02, L03>::type L02;
835 typedef typename Push<T01, L02>::type L01;
836 typedef L01 type;
837 };
838
839 template <class T01=void, class T02=void, class T03=void, class T04=void, class T05=void,
840 class T06=void, class T07=void, class T08=void, class T09=void, class T10=void,
841 class T11=void, class T12=void, class T13=void, class T14=void, class T15=void,
842 class T16=void, class T17=void, class T18=void, class T19=void, class T20=void>
843 struct MakeTypeListUnique
844 {
845 typedef typename PushUnique<T19, T20>::type L19;
846 typedef typename PushUnique<T18, L19>::type L18;
847 typedef typename PushUnique<T17, L18>::type L17;
848 typedef typename PushUnique<T16, L17>::type L16;
849 typedef typename PushUnique<T15, L16>::type L15;
850 typedef typename PushUnique<T14, L15>::type L14;
851 typedef typename PushUnique<T13, L14>::type L13;
852 typedef typename PushUnique<T12, L13>::type L12;
853 typedef typename PushUnique<T11, L12>::type L11;
854 typedef typename PushUnique<T10, L11>::type L10;
855 typedef typename PushUnique<T09, L10>::type L09;
856 typedef typename PushUnique<T08, L09>::type L08;
857 typedef typename PushUnique<T07, L08>::type L07;
858 typedef typename PushUnique<T06, L07>::type L06;
859 typedef typename PushUnique<T05, L06>::type L05;
860 typedef typename PushUnique<T04, L05>::type L04;
861 typedef typename PushUnique<T03, L04>::type L03;
862 typedef typename PushUnique<T02, L03>::type L02;
863 typedef typename PushUnique<T01, L02>::type L01;
864 typedef L01 type;
865 };
866
867 // mask cl.exe shortcomings [end]
868 #if defined(_MSC_VER)
869 #pragma warning( pop )
870 #endif
871
872 } // namespace vigra
873
874 #endif /* VIGRA_METAPROGRAMMING_HXX */
vigra
Definition: accessor.hxx:43
vigra::StridedArrayTag
Definition: metaprogramming.hxx:105
vigra::UnstridedArrayTag
Definition: metaprogramming.hxx:112
vigra::ChunkedArrayTag
Definition: metaprogramming.hxx:119

© Ullrich Köthe (ullrich.koethe@iwr.uni-heidelberg.de) Heidelberg Collaboratory for Image Processing, University of Heidelberg, Germany | html generated using doxygen and Python vigra 1.11.0