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1 // This file was GENERATED by a script.  DO NOT EDIT BY HAND!!!
2 
3 // Copyright 2009 Google Inc.
4 // All Rights Reserved.
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20 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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31 //
32 // Author: wan@google.com (Zhanyong Wan)
33 
34 // Implements a subset of TR1 tuple needed by Google Test and Google Mock.
35 
36 #ifndef GTEST_INCLUDE_GTEST_INTERNAL_GTEST_TUPLE_H_
37 #define GTEST_INCLUDE_GTEST_INTERNAL_GTEST_TUPLE_H_
38 
39 #include <utility>  // For ::std::pair.
40 
41 // The compiler used in Symbian has a bug that prevents us from declaring the
42 // tuple template as a friend (it complains that tuple is redefined).  This
43 // hack bypasses the bug by declaring the members that should otherwise be
44 // private as public.
45 // Sun Studio versions < 12 also have the above bug.
46 #if defined(__SYMBIAN32__) || (defined(__SUNPRO_CC) && __SUNPRO_CC < 0x590)
47 #define GTEST_DECLARE_TUPLE_AS_FRIEND_ public:
48 #else
49 #define GTEST_DECLARE_TUPLE_AS_FRIEND_ \
50     template <GTEST_10_TYPENAMES_(U)> friend class tuple; \
51    private:
52 #endif
53 
54 // GTEST_n_TUPLE_(T) is the type of an n-tuple.
55 #define GTEST_0_TUPLE_(T) tuple<>
56 #define GTEST_1_TUPLE_(T) tuple<T##0, void, void, void, void, void, void, \
57     void, void, void>
58 #define GTEST_2_TUPLE_(T) tuple<T##0, T##1, void, void, void, void, void, \
59     void, void, void>
60 #define GTEST_3_TUPLE_(T) tuple<T##0, T##1, T##2, void, void, void, void, \
61     void, void, void>
62 #define GTEST_4_TUPLE_(T) tuple<T##0, T##1, T##2, T##3, void, void, void, \
63     void, void, void>
64 #define GTEST_5_TUPLE_(T) tuple<T##0, T##1, T##2, T##3, T##4, void, void, \
65     void, void, void>
66 #define GTEST_6_TUPLE_(T) tuple<T##0, T##1, T##2, T##3, T##4, T##5, void, \
67     void, void, void>
68 #define GTEST_7_TUPLE_(T) tuple<T##0, T##1, T##2, T##3, T##4, T##5, T##6, \
69     void, void, void>
70 #define GTEST_8_TUPLE_(T) tuple<T##0, T##1, T##2, T##3, T##4, T##5, T##6, \
71     T##7, void, void>
72 #define GTEST_9_TUPLE_(T) tuple<T##0, T##1, T##2, T##3, T##4, T##5, T##6, \
73     T##7, T##8, void>
74 #define GTEST_10_TUPLE_(T) tuple<T##0, T##1, T##2, T##3, T##4, T##5, T##6, \
75     T##7, T##8, T##9>
76 
77 // GTEST_n_TYPENAMES_(T) declares a list of n typenames.
78 #define GTEST_0_TYPENAMES_(T)
79 #define GTEST_1_TYPENAMES_(T) typename T##0
80 #define GTEST_2_TYPENAMES_(T) typename T##0, typename T##1
81 #define GTEST_3_TYPENAMES_(T) typename T##0, typename T##1, typename T##2
82 #define GTEST_4_TYPENAMES_(T) typename T##0, typename T##1, typename T##2, \
83     typename T##3
84 #define GTEST_5_TYPENAMES_(T) typename T##0, typename T##1, typename T##2, \
85     typename T##3, typename T##4
86 #define GTEST_6_TYPENAMES_(T) typename T##0, typename T##1, typename T##2, \
87     typename T##3, typename T##4, typename T##5
88 #define GTEST_7_TYPENAMES_(T) typename T##0, typename T##1, typename T##2, \
89     typename T##3, typename T##4, typename T##5, typename T##6
90 #define GTEST_8_TYPENAMES_(T) typename T##0, typename T##1, typename T##2, \
91     typename T##3, typename T##4, typename T##5, typename T##6, typename T##7
92 #define GTEST_9_TYPENAMES_(T) typename T##0, typename T##1, typename T##2, \
93     typename T##3, typename T##4, typename T##5, typename T##6, \
94     typename T##7, typename T##8
95 #define GTEST_10_TYPENAMES_(T) typename T##0, typename T##1, typename T##2, \
96     typename T##3, typename T##4, typename T##5, typename T##6, \
97     typename T##7, typename T##8, typename T##9
98 
99 // In theory, defining stuff in the ::std namespace is undefined
100 // behavior.  We can do this as we are playing the role of a standard
101 // library vendor.
102 namespace std {
103 namespace tr1 {
104 
105 template <typename T0 = void, typename T1 = void, typename T2 = void,
106     typename T3 = void, typename T4 = void, typename T5 = void,
107     typename T6 = void, typename T7 = void, typename T8 = void,
108     typename T9 = void>
109 class tuple;
110 
111 // Anything in namespace gtest_internal is Google Test's INTERNAL
112 // IMPLEMENTATION DETAIL and MUST NOT BE USED DIRECTLY in user code.
113 namespace gtest_internal {
114 
115 // ByRef<T>::type is T if T is a reference; otherwise it's const T&.
116 template <typename T>
117 struct ByRef { typedef const T& type; };  // NOLINT
118 template <typename T>
119 struct ByRef<T&> { typedef T& type; };  // NOLINT
120 
121 // A handy wrapper for ByRef.
122 #define GTEST_BY_REF_(T) typename ::std::tr1::gtest_internal::ByRef<T>::type
123 
124 // AddRef<T>::type is T if T is a reference; otherwise it's T&.  This
125 // is the same as tr1::add_reference<T>::type.
126 template <typename T>
127 struct AddRef { typedef T& type; };  // NOLINT
128 template <typename T>
129 struct AddRef<T&> { typedef T& type; };  // NOLINT
130 
131 // A handy wrapper for AddRef.
132 #define GTEST_ADD_REF_(T) typename ::std::tr1::gtest_internal::AddRef<T>::type
133 
134 // A helper for implementing get<k>().
135 template <int k> class Get;
136 
137 // A helper for implementing tuple_element<k, T>.  kIndexValid is true
138 // iff k < the number of fields in tuple type T.
139 template <bool kIndexValid, int kIndex, class Tuple>
140 struct TupleElement;
141 
142 template <GTEST_10_TYPENAMES_(T)>
143 struct TupleElement<true, 0, GTEST_10_TUPLE_(T)> { typedef T0 type; };
144 
145 template <GTEST_10_TYPENAMES_(T)>
146 struct TupleElement<true, 1, GTEST_10_TUPLE_(T)> { typedef T1 type; };
147 
148 template <GTEST_10_TYPENAMES_(T)>
149 struct TupleElement<true, 2, GTEST_10_TUPLE_(T)> { typedef T2 type; };
150 
151 template <GTEST_10_TYPENAMES_(T)>
152 struct TupleElement<true, 3, GTEST_10_TUPLE_(T)> { typedef T3 type; };
153 
154 template <GTEST_10_TYPENAMES_(T)>
155 struct TupleElement<true, 4, GTEST_10_TUPLE_(T)> { typedef T4 type; };
156 
157 template <GTEST_10_TYPENAMES_(T)>
158 struct TupleElement<true, 5, GTEST_10_TUPLE_(T)> { typedef T5 type; };
159 
160 template <GTEST_10_TYPENAMES_(T)>
161 struct TupleElement<true, 6, GTEST_10_TUPLE_(T)> { typedef T6 type; };
162 
163 template <GTEST_10_TYPENAMES_(T)>
164 struct TupleElement<true, 7, GTEST_10_TUPLE_(T)> { typedef T7 type; };
165 
166 template <GTEST_10_TYPENAMES_(T)>
167 struct TupleElement<true, 8, GTEST_10_TUPLE_(T)> { typedef T8 type; };
168 
169 template <GTEST_10_TYPENAMES_(T)>
170 struct TupleElement<true, 9, GTEST_10_TUPLE_(T)> { typedef T9 type; };
171 
172 }  // namespace gtest_internal
173 
174 template <>
175 class tuple<> {
176  public:
177   tuple() {}
178   tuple(const tuple& /* t */)  {}
179   tuple& operator=(const tuple& /* t */) { return *this; }
180 };
181 
182 template <GTEST_1_TYPENAMES_(T)>
183 class GTEST_1_TUPLE_(T) {
184  public:
185   template <int k> friend class gtest_internal::Get;
186 
187   tuple() : f0_() {}
188 
189   explicit tuple(GTEST_BY_REF_(T0) f0) : f0_(f0) {}
190 
191   tuple(const tuple& t) : f0_(t.f0_) {}
192 
193   template <GTEST_1_TYPENAMES_(U)>
194   tuple(const GTEST_1_TUPLE_(U)& t) : f0_(t.f0_) {}
195 
196   tuple& operator=(const tuple& t) { return CopyFrom(t); }
197 
198   template <GTEST_1_TYPENAMES_(U)>
199   tuple& operator=(const GTEST_1_TUPLE_(U)& t) {
200     return CopyFrom(t);
201   }
202 
203   GTEST_DECLARE_TUPLE_AS_FRIEND_
204 
205   template <GTEST_1_TYPENAMES_(U)>
206   tuple& CopyFrom(const GTEST_1_TUPLE_(U)& t) {
207     f0_ = t.f0_;
208     return *this;
209   }
210 
211   T0 f0_;
212 };
213 
214 template <GTEST_2_TYPENAMES_(T)>
215 class GTEST_2_TUPLE_(T) {
216  public:
217   template <int k> friend class gtest_internal::Get;
218 
219   tuple() : f0_(), f1_() {}
220 
221   explicit tuple(GTEST_BY_REF_(T0) f0, GTEST_BY_REF_(T1) f1) : f0_(f0),
222       f1_(f1) {}
223 
224   tuple(const tuple& t) : f0_(t.f0_), f1_(t.f1_) {}
225 
226   template <GTEST_2_TYPENAMES_(U)>
227   tuple(const GTEST_2_TUPLE_(U)& t) : f0_(t.f0_), f1_(t.f1_) {}
228   template <typename U0, typename U1>
229   tuple(const ::std::pair<U0, U1>& p) : f0_(p.first), f1_(p.second) {}
230 
231   tuple& operator=(const tuple& t) { return CopyFrom(t); }
232 
233   template <GTEST_2_TYPENAMES_(U)>
234   tuple& operator=(const GTEST_2_TUPLE_(U)& t) {
235     return CopyFrom(t);
236   }
237   template <typename U0, typename U1>
238   tuple& operator=(const ::std::pair<U0, U1>& p) {
239     f0_ = p.first;
240     f1_ = p.second;
241     return *this;
242   }
243 
244   GTEST_DECLARE_TUPLE_AS_FRIEND_
245 
246   template <GTEST_2_TYPENAMES_(U)>
247   tuple& CopyFrom(const GTEST_2_TUPLE_(U)& t) {
248     f0_ = t.f0_;
249     f1_ = t.f1_;
250     return *this;
251   }
252 
253   T0 f0_;
254   T1 f1_;
255 };
256 
257 template <GTEST_3_TYPENAMES_(T)>
258 class GTEST_3_TUPLE_(T) {
259  public:
260   template <int k> friend class gtest_internal::Get;
261 
262   tuple() : f0_(), f1_(), f2_() {}
263 
264   explicit tuple(GTEST_BY_REF_(T0) f0, GTEST_BY_REF_(T1) f1,
265       GTEST_BY_REF_(T2) f2) : f0_(f0), f1_(f1), f2_(f2) {}
266 
267   tuple(const tuple& t) : f0_(t.f0_), f1_(t.f1_), f2_(t.f2_) {}
268 
269   template <GTEST_3_TYPENAMES_(U)>
270   tuple(const GTEST_3_TUPLE_(U)& t) : f0_(t.f0_), f1_(t.f1_), f2_(t.f2_) {}
271 
272   tuple& operator=(const tuple& t) { return CopyFrom(t); }
273 
274   template <GTEST_3_TYPENAMES_(U)>
275   tuple& operator=(const GTEST_3_TUPLE_(U)& t) {
276     return CopyFrom(t);
277   }
278 
279   GTEST_DECLARE_TUPLE_AS_FRIEND_
280 
281   template <GTEST_3_TYPENAMES_(U)>
282   tuple& CopyFrom(const GTEST_3_TUPLE_(U)& t) {
283     f0_ = t.f0_;
284     f1_ = t.f1_;
285     f2_ = t.f2_;
286     return *this;
287   }
288 
289   T0 f0_;
290   T1 f1_;
291   T2 f2_;
292 };
293 
294 template <GTEST_4_TYPENAMES_(T)>
295 class GTEST_4_TUPLE_(T) {
296  public:
297   template <int k> friend class gtest_internal::Get;
298 
299   tuple() : f0_(), f1_(), f2_(), f3_() {}
300 
301   explicit tuple(GTEST_BY_REF_(T0) f0, GTEST_BY_REF_(T1) f1,
302       GTEST_BY_REF_(T2) f2, GTEST_BY_REF_(T3) f3) : f0_(f0), f1_(f1), f2_(f2),
303       f3_(f3) {}
304 
305   tuple(const tuple& t) : f0_(t.f0_), f1_(t.f1_), f2_(t.f2_), f3_(t.f3_) {}
306 
307   template <GTEST_4_TYPENAMES_(U)>
308   tuple(const GTEST_4_TUPLE_(U)& t) : f0_(t.f0_), f1_(t.f1_), f2_(t.f2_),
309       f3_(t.f3_) {}
310 
311   tuple& operator=(const tuple& t) { return CopyFrom(t); }
312 
313   template <GTEST_4_TYPENAMES_(U)>
314   tuple& operator=(const GTEST_4_TUPLE_(U)& t) {
315     return CopyFrom(t);
316   }
317 
318   GTEST_DECLARE_TUPLE_AS_FRIEND_
319 
320   template <GTEST_4_TYPENAMES_(U)>
321   tuple& CopyFrom(const GTEST_4_TUPLE_(U)& t) {
322     f0_ = t.f0_;
323     f1_ = t.f1_;
324     f2_ = t.f2_;
325     f3_ = t.f3_;
326     return *this;
327   }
328 
329   T0 f0_;
330   T1 f1_;
331   T2 f2_;
332   T3 f3_;
333 };
334 
335 template <GTEST_5_TYPENAMES_(T)>
336 class GTEST_5_TUPLE_(T) {
337  public:
338   template <int k> friend class gtest_internal::Get;
339 
340   tuple() : f0_(), f1_(), f2_(), f3_(), f4_() {}
341 
342   explicit tuple(GTEST_BY_REF_(T0) f0, GTEST_BY_REF_(T1) f1,
343       GTEST_BY_REF_(T2) f2, GTEST_BY_REF_(T3) f3,
344       GTEST_BY_REF_(T4) f4) : f0_(f0), f1_(f1), f2_(f2), f3_(f3), f4_(f4) {}
345 
346   tuple(const tuple& t) : f0_(t.f0_), f1_(t.f1_), f2_(t.f2_), f3_(t.f3_),
347       f4_(t.f4_) {}
348 
349   template <GTEST_5_TYPENAMES_(U)>
350   tuple(const GTEST_5_TUPLE_(U)& t) : f0_(t.f0_), f1_(t.f1_), f2_(t.f2_),
351       f3_(t.f3_), f4_(t.f4_) {}
352 
353   tuple& operator=(const tuple& t) { return CopyFrom(t); }
354 
355   template <GTEST_5_TYPENAMES_(U)>
356   tuple& operator=(const GTEST_5_TUPLE_(U)& t) {
357     return CopyFrom(t);
358   }
359 
360   GTEST_DECLARE_TUPLE_AS_FRIEND_
361 
362   template <GTEST_5_TYPENAMES_(U)>
363   tuple& CopyFrom(const GTEST_5_TUPLE_(U)& t) {
364     f0_ = t.f0_;
365     f1_ = t.f1_;
366     f2_ = t.f2_;
367     f3_ = t.f3_;
368     f4_ = t.f4_;
369     return *this;
370   }
371 
372   T0 f0_;
373   T1 f1_;
374   T2 f2_;
375   T3 f3_;
376   T4 f4_;
377 };
378 
379 template <GTEST_6_TYPENAMES_(T)>
380 class GTEST_6_TUPLE_(T) {
381  public:
382   template <int k> friend class gtest_internal::Get;
383 
384   tuple() : f0_(), f1_(), f2_(), f3_(), f4_(), f5_() {}
385 
386   explicit tuple(GTEST_BY_REF_(T0) f0, GTEST_BY_REF_(T1) f1,
387       GTEST_BY_REF_(T2) f2, GTEST_BY_REF_(T3) f3, GTEST_BY_REF_(T4) f4,
388       GTEST_BY_REF_(T5) f5) : f0_(f0), f1_(f1), f2_(f2), f3_(f3), f4_(f4),
389       f5_(f5) {}
390 
391   tuple(const tuple& t) : f0_(t.f0_), f1_(t.f1_), f2_(t.f2_), f3_(t.f3_),
392       f4_(t.f4_), f5_(t.f5_) {}
393 
394   template <GTEST_6_TYPENAMES_(U)>
395   tuple(const GTEST_6_TUPLE_(U)& t) : f0_(t.f0_), f1_(t.f1_), f2_(t.f2_),
396       f3_(t.f3_), f4_(t.f4_), f5_(t.f5_) {}
397 
398   tuple& operator=(const tuple& t) { return CopyFrom(t); }
399 
400   template <GTEST_6_TYPENAMES_(U)>
401   tuple& operator=(const GTEST_6_TUPLE_(U)& t) {
402     return CopyFrom(t);
403   }
404 
405   GTEST_DECLARE_TUPLE_AS_FRIEND_
406 
407   template <GTEST_6_TYPENAMES_(U)>
408   tuple& CopyFrom(const GTEST_6_TUPLE_(U)& t) {
409     f0_ = t.f0_;
410     f1_ = t.f1_;
411     f2_ = t.f2_;
412     f3_ = t.f3_;
413     f4_ = t.f4_;
414     f5_ = t.f5_;
415     return *this;
416   }
417 
418   T0 f0_;
419   T1 f1_;
420   T2 f2_;
421   T3 f3_;
422   T4 f4_;
423   T5 f5_;
424 };
425 
426 template <GTEST_7_TYPENAMES_(T)>
427 class GTEST_7_TUPLE_(T) {
428  public:
429   template <int k> friend class gtest_internal::Get;
430 
431   tuple() : f0_(), f1_(), f2_(), f3_(), f4_(), f5_(), f6_() {}
432 
433   explicit tuple(GTEST_BY_REF_(T0) f0, GTEST_BY_REF_(T1) f1,
434       GTEST_BY_REF_(T2) f2, GTEST_BY_REF_(T3) f3, GTEST_BY_REF_(T4) f4,
435       GTEST_BY_REF_(T5) f5, GTEST_BY_REF_(T6) f6) : f0_(f0), f1_(f1), f2_(f2),
436       f3_(f3), f4_(f4), f5_(f5), f6_(f6) {}
437 
438   tuple(const tuple& t) : f0_(t.f0_), f1_(t.f1_), f2_(t.f2_), f3_(t.f3_),
439       f4_(t.f4_), f5_(t.f5_), f6_(t.f6_) {}
440 
441   template <GTEST_7_TYPENAMES_(U)>
442   tuple(const GTEST_7_TUPLE_(U)& t) : f0_(t.f0_), f1_(t.f1_), f2_(t.f2_),
443       f3_(t.f3_), f4_(t.f4_), f5_(t.f5_), f6_(t.f6_) {}
444 
445   tuple& operator=(const tuple& t) { return CopyFrom(t); }
446 
447   template <GTEST_7_TYPENAMES_(U)>
448   tuple& operator=(const GTEST_7_TUPLE_(U)& t) {
449     return CopyFrom(t);
450   }
451 
452   GTEST_DECLARE_TUPLE_AS_FRIEND_
453 
454   template <GTEST_7_TYPENAMES_(U)>
455   tuple& CopyFrom(const GTEST_7_TUPLE_(U)& t) {
456     f0_ = t.f0_;
457     f1_ = t.f1_;
458     f2_ = t.f2_;
459     f3_ = t.f3_;
460     f4_ = t.f4_;
461     f5_ = t.f5_;
462     f6_ = t.f6_;
463     return *this;
464   }
465 
466   T0 f0_;
467   T1 f1_;
468   T2 f2_;
469   T3 f3_;
470   T4 f4_;
471   T5 f5_;
472   T6 f6_;
473 };
474 
475 template <GTEST_8_TYPENAMES_(T)>
476 class GTEST_8_TUPLE_(T) {
477  public:
478   template <int k> friend class gtest_internal::Get;
479 
480   tuple() : f0_(), f1_(), f2_(), f3_(), f4_(), f5_(), f6_(), f7_() {}
481 
482   explicit tuple(GTEST_BY_REF_(T0) f0, GTEST_BY_REF_(T1) f1,
483       GTEST_BY_REF_(T2) f2, GTEST_BY_REF_(T3) f3, GTEST_BY_REF_(T4) f4,
484       GTEST_BY_REF_(T5) f5, GTEST_BY_REF_(T6) f6,
485       GTEST_BY_REF_(T7) f7) : f0_(f0), f1_(f1), f2_(f2), f3_(f3), f4_(f4),
486       f5_(f5), f6_(f6), f7_(f7) {}
487 
488   tuple(const tuple& t) : f0_(t.f0_), f1_(t.f1_), f2_(t.f2_), f3_(t.f3_),
489       f4_(t.f4_), f5_(t.f5_), f6_(t.f6_), f7_(t.f7_) {}
490 
491   template <GTEST_8_TYPENAMES_(U)>
492   tuple(const GTEST_8_TUPLE_(U)& t) : f0_(t.f0_), f1_(t.f1_), f2_(t.f2_),
493       f3_(t.f3_), f4_(t.f4_), f5_(t.f5_), f6_(t.f6_), f7_(t.f7_) {}
494 
495   tuple& operator=(const tuple& t) { return CopyFrom(t); }
496 
497   template <GTEST_8_TYPENAMES_(U)>
498   tuple& operator=(const GTEST_8_TUPLE_(U)& t) {
499     return CopyFrom(t);
500   }
501 
502   GTEST_DECLARE_TUPLE_AS_FRIEND_
503 
504   template <GTEST_8_TYPENAMES_(U)>
505   tuple& CopyFrom(const GTEST_8_TUPLE_(U)& t) {
506     f0_ = t.f0_;
507     f1_ = t.f1_;
508     f2_ = t.f2_;
509     f3_ = t.f3_;
510     f4_ = t.f4_;
511     f5_ = t.f5_;
512     f6_ = t.f6_;
513     f7_ = t.f7_;
514     return *this;
515   }
516 
517   T0 f0_;
518   T1 f1_;
519   T2 f2_;
520   T3 f3_;
521   T4 f4_;
522   T5 f5_;
523   T6 f6_;
524   T7 f7_;
525 };
526 
527 template <GTEST_9_TYPENAMES_(T)>
528 class GTEST_9_TUPLE_(T) {
529  public:
530   template <int k> friend class gtest_internal::Get;
531 
532   tuple() : f0_(), f1_(), f2_(), f3_(), f4_(), f5_(), f6_(), f7_(), f8_() {}
533 
534   explicit tuple(GTEST_BY_REF_(T0) f0, GTEST_BY_REF_(T1) f1,
535       GTEST_BY_REF_(T2) f2, GTEST_BY_REF_(T3) f3, GTEST_BY_REF_(T4) f4,
536       GTEST_BY_REF_(T5) f5, GTEST_BY_REF_(T6) f6, GTEST_BY_REF_(T7) f7,
537       GTEST_BY_REF_(T8) f8) : f0_(f0), f1_(f1), f2_(f2), f3_(f3), f4_(f4),
538       f5_(f5), f6_(f6), f7_(f7), f8_(f8) {}
539 
540   tuple(const tuple& t) : f0_(t.f0_), f1_(t.f1_), f2_(t.f2_), f3_(t.f3_),
541       f4_(t.f4_), f5_(t.f5_), f6_(t.f6_), f7_(t.f7_), f8_(t.f8_) {}
542 
543   template <GTEST_9_TYPENAMES_(U)>
544   tuple(const GTEST_9_TUPLE_(U)& t) : f0_(t.f0_), f1_(t.f1_), f2_(t.f2_),
545       f3_(t.f3_), f4_(t.f4_), f5_(t.f5_), f6_(t.f6_), f7_(t.f7_), f8_(t.f8_) {}
546 
547   tuple& operator=(const tuple& t) { return CopyFrom(t); }
548 
549   template <GTEST_9_TYPENAMES_(U)>
550   tuple& operator=(const GTEST_9_TUPLE_(U)& t) {
551     return CopyFrom(t);
552   }
553 
554   GTEST_DECLARE_TUPLE_AS_FRIEND_
555 
556   template <GTEST_9_TYPENAMES_(U)>
557   tuple& CopyFrom(const GTEST_9_TUPLE_(U)& t) {
558     f0_ = t.f0_;
559     f1_ = t.f1_;
560     f2_ = t.f2_;
561     f3_ = t.f3_;
562     f4_ = t.f4_;
563     f5_ = t.f5_;
564     f6_ = t.f6_;
565     f7_ = t.f7_;
566     f8_ = t.f8_;
567     return *this;
568   }
569 
570   T0 f0_;
571   T1 f1_;
572   T2 f2_;
573   T3 f3_;
574   T4 f4_;
575   T5 f5_;
576   T6 f6_;
577   T7 f7_;
578   T8 f8_;
579 };
580 
581 template <GTEST_10_TYPENAMES_(T)>
582 class tuple {
583  public:
584   template <int k> friend class gtest_internal::Get;
585 
586   tuple() : f0_(), f1_(), f2_(), f3_(), f4_(), f5_(), f6_(), f7_(), f8_(),
587       f9_() {}
588 
589   explicit tuple(GTEST_BY_REF_(T0) f0, GTEST_BY_REF_(T1) f1,
590       GTEST_BY_REF_(T2) f2, GTEST_BY_REF_(T3) f3, GTEST_BY_REF_(T4) f4,
591       GTEST_BY_REF_(T5) f5, GTEST_BY_REF_(T6) f6, GTEST_BY_REF_(T7) f7,
592       GTEST_BY_REF_(T8) f8, GTEST_BY_REF_(T9) f9) : f0_(f0), f1_(f1), f2_(f2),
593       f3_(f3), f4_(f4), f5_(f5), f6_(f6), f7_(f7), f8_(f8), f9_(f9) {}
594 
595   tuple(const tuple& t) : f0_(t.f0_), f1_(t.f1_), f2_(t.f2_), f3_(t.f3_),
596       f4_(t.f4_), f5_(t.f5_), f6_(t.f6_), f7_(t.f7_), f8_(t.f8_), f9_(t.f9_) {}
597 
598   template <GTEST_10_TYPENAMES_(U)>
599   tuple(const GTEST_10_TUPLE_(U)& t) : f0_(t.f0_), f1_(t.f1_), f2_(t.f2_),
600       f3_(t.f3_), f4_(t.f4_), f5_(t.f5_), f6_(t.f6_), f7_(t.f7_), f8_(t.f8_),
601       f9_(t.f9_) {}
602 
603   tuple& operator=(const tuple& t) { return CopyFrom(t); }
604 
605   template <GTEST_10_TYPENAMES_(U)>
606   tuple& operator=(const GTEST_10_TUPLE_(U)& t) {
607     return CopyFrom(t);
608   }
609 
610   GTEST_DECLARE_TUPLE_AS_FRIEND_
611 
612   template <GTEST_10_TYPENAMES_(U)>
613   tuple& CopyFrom(const GTEST_10_TUPLE_(U)& t) {
614     f0_ = t.f0_;
615     f1_ = t.f1_;
616     f2_ = t.f2_;
617     f3_ = t.f3_;
618     f4_ = t.f4_;
619     f5_ = t.f5_;
620     f6_ = t.f6_;
621     f7_ = t.f7_;
622     f8_ = t.f8_;
623     f9_ = t.f9_;
624     return *this;
625   }
626 
627   T0 f0_;
628   T1 f1_;
629   T2 f2_;
630   T3 f3_;
631   T4 f4_;
632   T5 f5_;
633   T6 f6_;
634   T7 f7_;
635   T8 f8_;
636   T9 f9_;
637 };
638 
639 // 6.1.3.2 Tuple creation functions.
640 
641 // Known limitations: we don't support passing an
642 // std::tr1::reference_wrapper<T> to make_tuple().  And we don't
643 // implement tie().
644 
645 inline tuple<> make_tuple() { return tuple<>(); }
646 
647 template <GTEST_1_TYPENAMES_(T)>
648 inline GTEST_1_TUPLE_(T) make_tuple(const T0& f0) {
649   return GTEST_1_TUPLE_(T)(f0);
650 }
651 
652 template <GTEST_2_TYPENAMES_(T)>
653 inline GTEST_2_TUPLE_(T) make_tuple(const T0& f0, const T1& f1) {
654   return GTEST_2_TUPLE_(T)(f0, f1);
655 }
656 
657 template <GTEST_3_TYPENAMES_(T)>
658 inline GTEST_3_TUPLE_(T) make_tuple(const T0& f0, const T1& f1, const T2& f2) {
659   return GTEST_3_TUPLE_(T)(f0, f1, f2);
660 }
661 
662 template <GTEST_4_TYPENAMES_(T)>
663 inline GTEST_4_TUPLE_(T) make_tuple(const T0& f0, const T1& f1, const T2& f2,
664     const T3& f3) {
665   return GTEST_4_TUPLE_(T)(f0, f1, f2, f3);
666 }
667 
668 template <GTEST_5_TYPENAMES_(T)>
669 inline GTEST_5_TUPLE_(T) make_tuple(const T0& f0, const T1& f1, const T2& f2,
670     const T3& f3, const T4& f4) {
671   return GTEST_5_TUPLE_(T)(f0, f1, f2, f3, f4);
672 }
673 
674 template <GTEST_6_TYPENAMES_(T)>
675 inline GTEST_6_TUPLE_(T) make_tuple(const T0& f0, const T1& f1, const T2& f2,
676     const T3& f3, const T4& f4, const T5& f5) {
677   return GTEST_6_TUPLE_(T)(f0, f1, f2, f3, f4, f5);
678 }
679 
680 template <GTEST_7_TYPENAMES_(T)>
681 inline GTEST_7_TUPLE_(T) make_tuple(const T0& f0, const T1& f1, const T2& f2,
682     const T3& f3, const T4& f4, const T5& f5, const T6& f6) {
683   return GTEST_7_TUPLE_(T)(f0, f1, f2, f3, f4, f5, f6);
684 }
685 
686 template <GTEST_8_TYPENAMES_(T)>
687 inline GTEST_8_TUPLE_(T) make_tuple(const T0& f0, const T1& f1, const T2& f2,
688     const T3& f3, const T4& f4, const T5& f5, const T6& f6, const T7& f7) {
689   return GTEST_8_TUPLE_(T)(f0, f1, f2, f3, f4, f5, f6, f7);
690 }
691 
692 template <GTEST_9_TYPENAMES_(T)>
693 inline GTEST_9_TUPLE_(T) make_tuple(const T0& f0, const T1& f1, const T2& f2,
694     const T3& f3, const T4& f4, const T5& f5, const T6& f6, const T7& f7,
695     const T8& f8) {
696   return GTEST_9_TUPLE_(T)(f0, f1, f2, f3, f4, f5, f6, f7, f8);
697 }
698 
699 template <GTEST_10_TYPENAMES_(T)>
700 inline GTEST_10_TUPLE_(T) make_tuple(const T0& f0, const T1& f1, const T2& f2,
701     const T3& f3, const T4& f4, const T5& f5, const T6& f6, const T7& f7,
702     const T8& f8, const T9& f9) {
703   return GTEST_10_TUPLE_(T)(f0, f1, f2, f3, f4, f5, f6, f7, f8, f9);
704 }
705 
706 // 6.1.3.3 Tuple helper classes.
707 
708 template <typename Tuple> struct tuple_size;
709 
710 template <GTEST_0_TYPENAMES_(T)>
711 struct tuple_size<GTEST_0_TUPLE_(T)> { static const int value = 0; };
712 
713 template <GTEST_1_TYPENAMES_(T)>
714 struct tuple_size<GTEST_1_TUPLE_(T)> { static const int value = 1; };
715 
716 template <GTEST_2_TYPENAMES_(T)>
717 struct tuple_size<GTEST_2_TUPLE_(T)> { static const int value = 2; };
718 
719 template <GTEST_3_TYPENAMES_(T)>
720 struct tuple_size<GTEST_3_TUPLE_(T)> { static const int value = 3; };
721 
722 template <GTEST_4_TYPENAMES_(T)>
723 struct tuple_size<GTEST_4_TUPLE_(T)> { static const int value = 4; };
724 
725 template <GTEST_5_TYPENAMES_(T)>
726 struct tuple_size<GTEST_5_TUPLE_(T)> { static const int value = 5; };
727 
728 template <GTEST_6_TYPENAMES_(T)>
729 struct tuple_size<GTEST_6_TUPLE_(T)> { static const int value = 6; };
730 
731 template <GTEST_7_TYPENAMES_(T)>
732 struct tuple_size<GTEST_7_TUPLE_(T)> { static const int value = 7; };
733 
734 template <GTEST_8_TYPENAMES_(T)>
735 struct tuple_size<GTEST_8_TUPLE_(T)> { static const int value = 8; };
736 
737 template <GTEST_9_TYPENAMES_(T)>
738 struct tuple_size<GTEST_9_TUPLE_(T)> { static const int value = 9; };
739 
740 template <GTEST_10_TYPENAMES_(T)>
741 struct tuple_size<GTEST_10_TUPLE_(T)> { static const int value = 10; };
742 
743 template <int k, class Tuple>
744 struct tuple_element {
745   typedef typename gtest_internal::TupleElement<
746       k < (tuple_size<Tuple>::value), k, Tuple>::type type;
747 };
748 
749 #define GTEST_TUPLE_ELEMENT_(k, Tuple) typename tuple_element<k, Tuple >::type
750 
751 // 6.1.3.4 Element access.
752 
753 namespace gtest_internal {
754 
755 template <>
756 class Get<0> {
757  public:
758   template <class Tuple>
759   static GTEST_ADD_REF_(GTEST_TUPLE_ELEMENT_(0, Tuple))
760   Field(Tuple& t) { return t.f0_; }  // NOLINT
761 
762   template <class Tuple>
763   static GTEST_BY_REF_(GTEST_TUPLE_ELEMENT_(0, Tuple))
764   ConstField(const Tuple& t) { return t.f0_; }
765 };
766 
767 template <>
768 class Get<1> {
769  public:
770   template <class Tuple>
771   static GTEST_ADD_REF_(GTEST_TUPLE_ELEMENT_(1, Tuple))
772   Field(Tuple& t) { return t.f1_; }  // NOLINT
773 
774   template <class Tuple>
775   static GTEST_BY_REF_(GTEST_TUPLE_ELEMENT_(1, Tuple))
776   ConstField(const Tuple& t) { return t.f1_; }
777 };
778 
779 template <>
780 class Get<2> {
781  public:
782   template <class Tuple>
783   static GTEST_ADD_REF_(GTEST_TUPLE_ELEMENT_(2, Tuple))
784   Field(Tuple& t) { return t.f2_; }  // NOLINT
785 
786   template <class Tuple>
787   static GTEST_BY_REF_(GTEST_TUPLE_ELEMENT_(2, Tuple))
788   ConstField(const Tuple& t) { return t.f2_; }
789 };
790 
791 template <>
792 class Get<3> {
793  public:
794   template <class Tuple>
795   static GTEST_ADD_REF_(GTEST_TUPLE_ELEMENT_(3, Tuple))
796   Field(Tuple& t) { return t.f3_; }  // NOLINT
797 
798   template <class Tuple>
799   static GTEST_BY_REF_(GTEST_TUPLE_ELEMENT_(3, Tuple))
800   ConstField(const Tuple& t) { return t.f3_; }
801 };
802 
803 template <>
804 class Get<4> {
805  public:
806   template <class Tuple>
807   static GTEST_ADD_REF_(GTEST_TUPLE_ELEMENT_(4, Tuple))
808   Field(Tuple& t) { return t.f4_; }  // NOLINT
809 
810   template <class Tuple>
811   static GTEST_BY_REF_(GTEST_TUPLE_ELEMENT_(4, Tuple))
812   ConstField(const Tuple& t) { return t.f4_; }
813 };
814 
815 template <>
816 class Get<5> {
817  public:
818   template <class Tuple>
819   static GTEST_ADD_REF_(GTEST_TUPLE_ELEMENT_(5, Tuple))
820   Field(Tuple& t) { return t.f5_; }  // NOLINT
821 
822   template <class Tuple>
823   static GTEST_BY_REF_(GTEST_TUPLE_ELEMENT_(5, Tuple))
824   ConstField(const Tuple& t) { return t.f5_; }
825 };
826 
827 template <>
828 class Get<6> {
829  public:
830   template <class Tuple>
831   static GTEST_ADD_REF_(GTEST_TUPLE_ELEMENT_(6, Tuple))
832   Field(Tuple& t) { return t.f6_; }  // NOLINT
833 
834   template <class Tuple>
835   static GTEST_BY_REF_(GTEST_TUPLE_ELEMENT_(6, Tuple))
836   ConstField(const Tuple& t) { return t.f6_; }
837 };
838 
839 template <>
840 class Get<7> {
841  public:
842   template <class Tuple>
843   static GTEST_ADD_REF_(GTEST_TUPLE_ELEMENT_(7, Tuple))
844   Field(Tuple& t) { return t.f7_; }  // NOLINT
845 
846   template <class Tuple>
847   static GTEST_BY_REF_(GTEST_TUPLE_ELEMENT_(7, Tuple))
848   ConstField(const Tuple& t) { return t.f7_; }
849 };
850 
851 template <>
852 class Get<8> {
853  public:
854   template <class Tuple>
855   static GTEST_ADD_REF_(GTEST_TUPLE_ELEMENT_(8, Tuple))
856   Field(Tuple& t) { return t.f8_; }  // NOLINT
857 
858   template <class Tuple>
859   static GTEST_BY_REF_(GTEST_TUPLE_ELEMENT_(8, Tuple))
860   ConstField(const Tuple& t) { return t.f8_; }
861 };
862 
863 template <>
864 class Get<9> {
865  public:
866   template <class Tuple>
867   static GTEST_ADD_REF_(GTEST_TUPLE_ELEMENT_(9, Tuple))
868   Field(Tuple& t) { return t.f9_; }  // NOLINT
869 
870   template <class Tuple>
871   static GTEST_BY_REF_(GTEST_TUPLE_ELEMENT_(9, Tuple))
872   ConstField(const Tuple& t) { return t.f9_; }
873 };
874 
875 }  // namespace gtest_internal
876 
877 template <int k, GTEST_10_TYPENAMES_(T)>
878 GTEST_ADD_REF_(GTEST_TUPLE_ELEMENT_(k, GTEST_10_TUPLE_(T)))
879 get(GTEST_10_TUPLE_(T)& t) {
880   return gtest_internal::Get<k>::Field(t);
881 }
882 
883 template <int k, GTEST_10_TYPENAMES_(T)>
884 GTEST_BY_REF_(GTEST_TUPLE_ELEMENT_(k,  GTEST_10_TUPLE_(T)))
885 get(const GTEST_10_TUPLE_(T)& t) {
886   return gtest_internal::Get<k>::ConstField(t);
887 }
888 
889 // 6.1.3.5 Relational operators
890 
891 // We only implement == and !=, as we don't have a need for the rest yet.
892 
893 namespace gtest_internal {
894 
895 // SameSizeTuplePrefixComparator<k, k>::Eq(t1, t2) returns true if the
896 // first k fields of t1 equals the first k fields of t2.
897 // SameSizeTuplePrefixComparator(k1, k2) would be a compiler error if
898 // k1 != k2.
899 template <int kSize1, int kSize2>
900 struct SameSizeTuplePrefixComparator;
901 
902 template <>
903 struct SameSizeTuplePrefixComparator<0, 0> {
904   template <class Tuple1, class Tuple2>
905   static bool Eq(const Tuple1& /* t1 */, const Tuple2& /* t2 */) {
906     return true;
907   }
908 };
909 
910 template <int k>
911 struct SameSizeTuplePrefixComparator<k, k> {
912   template <class Tuple1, class Tuple2>
913   static bool Eq(const Tuple1& t1, const Tuple2& t2) {
914     return SameSizeTuplePrefixComparator<k - 1, k - 1>::Eq(t1, t2) &&
915         ::std::tr1::get<k - 1>(t1) == ::std::tr1::get<k - 1>(t2);
916   }
917 };
918 
919 }  // namespace gtest_internal
920 
921 template <GTEST_10_TYPENAMES_(T), GTEST_10_TYPENAMES_(U)>
922 inline bool operator==(const GTEST_10_TUPLE_(T)& t,
923                        const GTEST_10_TUPLE_(U)& u) {
924   return gtest_internal::SameSizeTuplePrefixComparator<
925       tuple_size<GTEST_10_TUPLE_(T)>::value,
926       tuple_size<GTEST_10_TUPLE_(U)>::value>::Eq(t, u);
927 }
928 
929 template <GTEST_10_TYPENAMES_(T), GTEST_10_TYPENAMES_(U)>
930 inline bool operator!=(const GTEST_10_TUPLE_(T)& t,
931                        const GTEST_10_TUPLE_(U)& u) { return !(t == u); }
932 
933 // 6.1.4 Pairs.
934 // Unimplemented.
935 
936 }  // namespace tr1
937 }  // namespace std
938 
939 #undef GTEST_0_TUPLE_
940 #undef GTEST_1_TUPLE_
941 #undef GTEST_2_TUPLE_
942 #undef GTEST_3_TUPLE_
943 #undef GTEST_4_TUPLE_
944 #undef GTEST_5_TUPLE_
945 #undef GTEST_6_TUPLE_
946 #undef GTEST_7_TUPLE_
947 #undef GTEST_8_TUPLE_
948 #undef GTEST_9_TUPLE_
949 #undef GTEST_10_TUPLE_
950 
951 #undef GTEST_0_TYPENAMES_
952 #undef GTEST_1_TYPENAMES_
953 #undef GTEST_2_TYPENAMES_
954 #undef GTEST_3_TYPENAMES_
955 #undef GTEST_4_TYPENAMES_
956 #undef GTEST_5_TYPENAMES_
957 #undef GTEST_6_TYPENAMES_
958 #undef GTEST_7_TYPENAMES_
959 #undef GTEST_8_TYPENAMES_
960 #undef GTEST_9_TYPENAMES_
961 #undef GTEST_10_TYPENAMES_
962 
963 #undef GTEST_DECLARE_TUPLE_AS_FRIEND_
964 #undef GTEST_BY_REF_
965 #undef GTEST_ADD_REF_
966 #undef GTEST_TUPLE_ELEMENT_
967 
968 #endif  // GTEST_INCLUDE_GTEST_INTERNAL_GTEST_TUPLE_H_
969