gtest-tuple.h

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//
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// in the documentation and/or other materials provided with the
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//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Author: wan@google.com (Zhanyong Wan)
 
// Implements a subset of TR1 tuple needed by Google Test and Google Mock.
 
#ifndef GTEST_INCLUDE_GTEST_INTERNAL_GTEST_TUPLE_H_
#define GTEST_INCLUDE_GTEST_INTERNAL_GTEST_TUPLE_H_
 
#include <utility>  // For ::std::pair.
 
// The compiler used in Symbian has a bug that prevents us from declaring the
// tuple template as a friend (it complains that tuple is redefined).  This
// hack bypasses the bug by declaring the members that should otherwise be
// private as public.
// Sun Studio versions < 12 also have the above bug.
#if defined(__SYMBIAN32__) || (defined(__SUNPRO_CC) && __SUNPRO_CC < 0x590)
# define GTEST_DECLARE_TUPLE_AS_FRIEND_ public:
#else
# define GTEST_DECLARE_TUPLE_AS_FRIEND_ \
    template <GTEST_10_TYPENAMES_(U)> friend class tuple; \
   private:
#endif
 
// Visual Studio 2010, 2012, and 2013 define symbols in std::tr1 that conflict
// with our own definitions. Therefore using our own tuple does not work on
// those compilers.
#if defined(_MSC_VER) && _MSC_VER >= 1600  /* 1600 is Visual Studio 2010 */
# error "gtest's tuple doesn't compile on Visual Studio 2010 or later. \
GTEST_USE_OWN_TR1_TUPLE must be set to 0 on those compilers."
#endif
 
// GTEST_n_TUPLE_(T) is the type of an n-tuple.
#define GTEST_0_TUPLE_(T) tuple<>
#define GTEST_1_TUPLE_(T) tuple<T##0, void, void, void, void, void, void, \
    void, void, void>
#define GTEST_2_TUPLE_(T) tuple<T##0, T##1, void, void, void, void, void, \
    void, void, void>
#define GTEST_3_TUPLE_(T) tuple<T##0, T##1, T##2, void, void, void, void, \
    void, void, void>
#define GTEST_4_TUPLE_(T) tuple<T##0, T##1, T##2, T##3, void, void, void, \
    void, void, void>
#define GTEST_5_TUPLE_(T) tuple<T##0, T##1, T##2, T##3, T##4, void, void, \
    void, void, void>
#define GTEST_6_TUPLE_(T) tuple<T##0, T##1, T##2, T##3, T##4, T##5, void, \
    void, void, void>
#define GTEST_7_TUPLE_(T) tuple<T##0, T##1, T##2, T##3, T##4, T##5, T##6, \
    void, void, void>
#define GTEST_8_TUPLE_(T) tuple<T##0, T##1, T##2, T##3, T##4, T##5, T##6, \
    T##7, void, void>
#define GTEST_9_TUPLE_(T) tuple<T##0, T##1, T##2, T##3, T##4, T##5, T##6, \
    T##7, T##8, void>
#define GTEST_10_TUPLE_(T) tuple<T##0, T##1, T##2, T##3, T##4, T##5, T##6, \
    T##7, T##8, T##9>
 
// GTEST_n_TYPENAMES_(T) declares a list of n typenames.
#define GTEST_0_TYPENAMES_(T)
#define GTEST_1_TYPENAMES_(T) typename T##0
#define GTEST_2_TYPENAMES_(T) typename T##0, typename T##1
#define GTEST_3_TYPENAMES_(T) typename T##0, typename T##1, typename T##2
#define GTEST_4_TYPENAMES_(T) typename T##0, typename T##1, typename T##2, \
    typename T##3
#define GTEST_5_TYPENAMES_(T) typename T##0, typename T##1, typename T##2, \
    typename T##3, typename T##4
#define GTEST_6_TYPENAMES_(T) typename T##0, typename T##1, typename T##2, \
    typename T##3, typename T##4, typename T##5
#define GTEST_7_TYPENAMES_(T) typename T##0, typename T##1, typename T##2, \
    typename T##3, typename T##4, typename T##5, typename T##6
#define GTEST_8_TYPENAMES_(T) typename T##0, typename T##1, typename T##2, \
    typename T##3, typename T##4, typename T##5, typename T##6, typename T##7
#define GTEST_9_TYPENAMES_(T) typename T##0, typename T##1, typename T##2, \
    typename T##3, typename T##4, typename T##5, typename T##6, \
    typename T##7, typename T##8
#define GTEST_10_TYPENAMES_(T) typename T##0, typename T##1, typename T##2, \
    typename T##3, typename T##4, typename T##5, typename T##6, \
    typename T##7, typename T##8, typename T##9
 
// In theory, defining stuff in the ::std namespace is undefined
// behavior.  We can do this as we are playing the role of a standard
// library vendor.
namespace std {
namespace tr1 {
 
template <typename T0 = void, typename T1 = void, typename T2 = void,
    typename T3 = void, typename T4 = void, typename T5 = void,
    typename T6 = void, typename T7 = void, typename T8 = void,
    typename T9 = void>
class tuple;
 
// Anything in namespace gtest_internal is Google Test's INTERNAL
// IMPLEMENTATION DETAIL and MUST NOT BE USED DIRECTLY in user code.
namespace gtest_internal {
 
// ByRef<T>::type is T if T is a reference; otherwise it's const T&.
template <typename T>
struct ByRef { typedef const T& type; };  // NOLINT
template <typename T>
struct ByRef<T&> { typedef T& type; };  // NOLINT
 
// A handy wrapper for ByRef.
#define GTEST_BY_REF_(T) typename ::std::tr1::gtest_internal::ByRef<T>::type
 
// AddRef<T>::type is T if T is a reference; otherwise it's T&.  This
// is the same as tr1::add_reference<T>::type.
template <typename T>
struct AddRef { typedef T& type; };  // NOLINT
template <typename T>
struct AddRef<T&> { typedef T& type; };  // NOLINT
 
// A handy wrapper for AddRef.
#define GTEST_ADD_REF_(T) typename ::std::tr1::gtest_internal::AddRef<T>::type
 
// A helper for implementing get<k>().
template <int k> class Get;
 
// A helper for implementing tuple_element<k, T>.  kIndexValid is true
// iff k < the number of fields in tuple type T.
template <bool kIndexValid, int kIndex, class Tuple>
struct TupleElement;
 
template <GTEST_10_TYPENAMES_(T)>
struct TupleElement<true, 0, GTEST_10_TUPLE_(T) > {
  typedef T0 type;
};
 
template <GTEST_10_TYPENAMES_(T)>
struct TupleElement<true, 1, GTEST_10_TUPLE_(T) > {
  typedef T1 type;
};
 
template <GTEST_10_TYPENAMES_(T)>
struct TupleElement<true, 2, GTEST_10_TUPLE_(T) > {
  typedef T2 type;
};
 
template <GTEST_10_TYPENAMES_(T)>
struct TupleElement<true, 3, GTEST_10_TUPLE_(T) > {
  typedef T3 type;
};
 
template <GTEST_10_TYPENAMES_(T)>
struct TupleElement<true, 4, GTEST_10_TUPLE_(T) > {
  typedef T4 type;
};
 
template <GTEST_10_TYPENAMES_(T)>
struct TupleElement<true, 5, GTEST_10_TUPLE_(T) > {
  typedef T5 type;
};
 
template <GTEST_10_TYPENAMES_(T)>
struct TupleElement<true, 6, GTEST_10_TUPLE_(T) > {
  typedef T6 type;
};
 
template <GTEST_10_TYPENAMES_(T)>
struct TupleElement<true, 7, GTEST_10_TUPLE_(T) > {
  typedef T7 type;
};
 
template <GTEST_10_TYPENAMES_(T)>
struct TupleElement<true, 8, GTEST_10_TUPLE_(T) > {
  typedef T8 type;
};
 
template <GTEST_10_TYPENAMES_(T)>
struct TupleElement<true, 9, GTEST_10_TUPLE_(T) > {
  typedef T9 type;
};
 
}  // namespace gtest_internal
 
template <>
class tuple<> {
 public:
  tuple() {}
  tuple(const tuple& /* t */)  {}
  tuple& operator=(const tuple& /* t */) { return *this; }
};
 
template <GTEST_1_TYPENAMES_(T)>
class GTEST_1_TUPLE_(T) {
 public:
  template <int k> friend class gtest_internal::Get;
 
  tuple() : f0_() {}
 
  explicit tuple(GTEST_BY_REF_(T0) f0) : f0_(f0) {}
 
  tuple(const tuple& t) : f0_(t.f0_) {}
 
  template <GTEST_1_TYPENAMES_(U)>
  tuple(const GTEST_1_TUPLE_(U)& t) : f0_(t.f0_) {}
 
  tuple& operator=(const tuple& t) { return CopyFrom(t); }
 
  template <GTEST_1_TYPENAMES_(U)>
  tuple& operator=(const GTEST_1_TUPLE_(U)& t) {
    return CopyFrom(t);
  }
 
  GTEST_DECLARE_TUPLE_AS_FRIEND_
 
  template <GTEST_1_TYPENAMES_(U)>
  tuple& CopyFrom(const GTEST_1_TUPLE_(U)& t) {
    f0_ = t.f0_;
    return *this;
  }
 
  T0 f0_;
};
 
template <GTEST_2_TYPENAMES_(T)>
class GTEST_2_TUPLE_(T) {
 public:
  template <int k> friend class gtest_internal::Get;
 
  tuple() : f0_(), f1_() {}
 
  explicit tuple(GTEST_BY_REF_(T0) f0, GTEST_BY_REF_(T1) f1) : f0_(f0),
      f1_(f1) {}
 
  tuple(const tuple& t) : f0_(t.f0_), f1_(t.f1_) {}
 
  template <GTEST_2_TYPENAMES_(U)>
  tuple(const GTEST_2_TUPLE_(U)& t) : f0_(t.f0_), f1_(t.f1_) {}
  template <typename U0, typename U1>
  tuple(const ::std::pair<U0, U1>& p) : f0_(p.first), f1_(p.second) {}
 
  tuple& operator=(const tuple& t) { return CopyFrom(t); }
 
  template <GTEST_2_TYPENAMES_(U)>
  tuple& operator=(const GTEST_2_TUPLE_(U)& t) {
    return CopyFrom(t);
  }
  template <typename U0, typename U1>
  tuple& operator=(const ::std::pair<U0, U1>& p) {
    f0_ = p.first;
    f1_ = p.second;
    return *this;
  }
 
  GTEST_DECLARE_TUPLE_AS_FRIEND_
 
  template <GTEST_2_TYPENAMES_(U)>
  tuple& CopyFrom(const GTEST_2_TUPLE_(U)& t) {
    f0_ = t.f0_;
    f1_ = t.f1_;
    return *this;
  }
 
  T0 f0_;
  T1 f1_;
};
 
template <GTEST_3_TYPENAMES_(T)>
class GTEST_3_TUPLE_(T) {
 public:
  template <int k> friend class gtest_internal::Get;
 
  tuple() : f0_(), f1_(), f2_() {}
 
  explicit tuple(GTEST_BY_REF_(T0) f0, GTEST_BY_REF_(T1) f1,
      GTEST_BY_REF_(T2) f2) : f0_(f0), f1_(f1), f2_(f2) {}
 
  tuple(const tuple& t) : f0_(t.f0_), f1_(t.f1_), f2_(t.f2_) {}
 
  template <GTEST_3_TYPENAMES_(U)>
  tuple(const GTEST_3_TUPLE_(U)& t) : f0_(t.f0_), f1_(t.f1_), f2_(t.f2_) {}
 
  tuple& operator=(const tuple& t) { return CopyFrom(t); }
 
  template <GTEST_3_TYPENAMES_(U)>
  tuple& operator=(const GTEST_3_TUPLE_(U)& t) {
    return CopyFrom(t);
  }
 
  GTEST_DECLARE_TUPLE_AS_FRIEND_
 
  template <GTEST_3_TYPENAMES_(U)>
  tuple& CopyFrom(const GTEST_3_TUPLE_(U)& t) {
    f0_ = t.f0_;
    f1_ = t.f1_;
    f2_ = t.f2_;
    return *this;
  }
 
  T0 f0_;
  T1 f1_;
  T2 f2_;
};
 
template <GTEST_4_TYPENAMES_(T)>
class GTEST_4_TUPLE_(T) {
 public:
  template <int k> friend class gtest_internal::Get;
 
  tuple() : f0_(), f1_(), f2_(), f3_() {}
 
  explicit tuple(GTEST_BY_REF_(T0) f0, GTEST_BY_REF_(T1) f1,
      GTEST_BY_REF_(T2) f2, GTEST_BY_REF_(T3) f3) : f0_(f0), f1_(f1), f2_(f2),
      f3_(f3) {}
 
  tuple(const tuple& t) : f0_(t.f0_), f1_(t.f1_), f2_(t.f2_), f3_(t.f3_) {}
 
  template <GTEST_4_TYPENAMES_(U)>
  tuple(const GTEST_4_TUPLE_(U)& t) : f0_(t.f0_), f1_(t.f1_), f2_(t.f2_),
      f3_(t.f3_) {}
 
  tuple& operator=(const tuple& t) { return CopyFrom(t); }
 
  template <GTEST_4_TYPENAMES_(U)>
  tuple& operator=(const GTEST_4_TUPLE_(U)& t) {
    return CopyFrom(t);
  }
 
  GTEST_DECLARE_TUPLE_AS_FRIEND_
 
  template <GTEST_4_TYPENAMES_(U)>
  tuple& CopyFrom(const GTEST_4_TUPLE_(U)& t) {
    f0_ = t.f0_;
    f1_ = t.f1_;
    f2_ = t.f2_;
    f3_ = t.f3_;
    return *this;
  }
 
  T0 f0_;
  T1 f1_;
  T2 f2_;
  T3 f3_;
};
 
template <GTEST_5_TYPENAMES_(T)>
class GTEST_5_TUPLE_(T) {
 public:
  template <int k> friend class gtest_internal::Get;
 
  tuple() : f0_(), f1_(), f2_(), f3_(), f4_() {}
 
  explicit tuple(GTEST_BY_REF_(T0) f0, GTEST_BY_REF_(T1) f1,
      GTEST_BY_REF_(T2) f2, GTEST_BY_REF_(T3) f3,
      GTEST_BY_REF_(T4) f4) : f0_(f0), f1_(f1), f2_(f2), f3_(f3), f4_(f4) {}
 
  tuple(const tuple& t) : f0_(t.f0_), f1_(t.f1_), f2_(t.f2_), f3_(t.f3_),
      f4_(t.f4_) {}
 
  template <GTEST_5_TYPENAMES_(U)>
  tuple(const GTEST_5_TUPLE_(U)& t) : f0_(t.f0_), f1_(t.f1_), f2_(t.f2_),
      f3_(t.f3_), f4_(t.f4_) {}
 
  tuple& operator=(const tuple& t) { return CopyFrom(t); }
 
  template <GTEST_5_TYPENAMES_(U)>
  tuple& operator=(const GTEST_5_TUPLE_(U)& t) {
    return CopyFrom(t);
  }
 
  GTEST_DECLARE_TUPLE_AS_FRIEND_
 
  template <GTEST_5_TYPENAMES_(U)>
  tuple& CopyFrom(const GTEST_5_TUPLE_(U)& t) {
    f0_ = t.f0_;
    f1_ = t.f1_;
    f2_ = t.f2_;
    f3_ = t.f3_;
    f4_ = t.f4_;
    return *this;
  }
 
  T0 f0_;
  T1 f1_;
  T2 f2_;
  T3 f3_;
  T4 f4_;
};
 
template <GTEST_6_TYPENAMES_(T)>
class GTEST_6_TUPLE_(T) {
 public:
  template <int k> friend class gtest_internal::Get;
 
  tuple() : f0_(), f1_(), f2_(), f3_(), f4_(), f5_() {}
 
  explicit tuple(GTEST_BY_REF_(T0) f0, GTEST_BY_REF_(T1) f1,
      GTEST_BY_REF_(T2) f2, GTEST_BY_REF_(T3) f3, GTEST_BY_REF_(T4) f4,
      GTEST_BY_REF_(T5) f5) : f0_(f0), f1_(f1), f2_(f2), f3_(f3), f4_(f4),
      f5_(f5) {}
 
  tuple(const tuple& t) : f0_(t.f0_), f1_(t.f1_), f2_(t.f2_), f3_(t.f3_),
      f4_(t.f4_), f5_(t.f5_) {}
 
  template <GTEST_6_TYPENAMES_(U)>
  tuple(const GTEST_6_TUPLE_(U)& t) : f0_(t.f0_), f1_(t.f1_), f2_(t.f2_),
      f3_(t.f3_), f4_(t.f4_), f5_(t.f5_) {}
 
  tuple& operator=(const tuple& t) { return CopyFrom(t); }
 
  template <GTEST_6_TYPENAMES_(U)>
  tuple& operator=(const GTEST_6_TUPLE_(U)& t) {
    return CopyFrom(t);
  }
 
  GTEST_DECLARE_TUPLE_AS_FRIEND_
 
  template <GTEST_6_TYPENAMES_(U)>
  tuple& CopyFrom(const GTEST_6_TUPLE_(U)& t) {
    f0_ = t.f0_;
    f1_ = t.f1_;
    f2_ = t.f2_;
    f3_ = t.f3_;
    f4_ = t.f4_;
    f5_ = t.f5_;
    return *this;
  }
 
  T0 f0_;
  T1 f1_;
  T2 f2_;
  T3 f3_;
  T4 f4_;
  T5 f5_;
};
 
template <GTEST_7_TYPENAMES_(T)>
class GTEST_7_TUPLE_(T) {
 public:
  template <int k> friend class gtest_internal::Get;
 
  tuple() : f0_(), f1_(), f2_(), f3_(), f4_(), f5_(), f6_() {}
 
  explicit tuple(GTEST_BY_REF_(T0) f0, GTEST_BY_REF_(T1) f1,
      GTEST_BY_REF_(T2) f2, GTEST_BY_REF_(T3) f3, GTEST_BY_REF_(T4) f4,
      GTEST_BY_REF_(T5) f5, GTEST_BY_REF_(T6) f6) : f0_(f0), f1_(f1), f2_(f2),
      f3_(f3), f4_(f4), f5_(f5), f6_(f6) {}
 
  tuple(const tuple& t) : f0_(t.f0_), f1_(t.f1_), f2_(t.f2_), f3_(t.f3_),
      f4_(t.f4_), f5_(t.f5_), f6_(t.f6_) {}
 
  template <GTEST_7_TYPENAMES_(U)>
  tuple(const GTEST_7_TUPLE_(U)& t) : f0_(t.f0_), f1_(t.f1_), f2_(t.f2_),
      f3_(t.f3_), f4_(t.f4_), f5_(t.f5_), f6_(t.f6_) {}
 
  tuple& operator=(const tuple& t) { return CopyFrom(t); }
 
  template <GTEST_7_TYPENAMES_(U)>
  tuple& operator=(const GTEST_7_TUPLE_(U)& t) {
    return CopyFrom(t);
  }
 
  GTEST_DECLARE_TUPLE_AS_FRIEND_
 
  template <GTEST_7_TYPENAMES_(U)>
  tuple& CopyFrom(const GTEST_7_TUPLE_(U)& t) {
    f0_ = t.f0_;
    f1_ = t.f1_;
    f2_ = t.f2_;
    f3_ = t.f3_;
    f4_ = t.f4_;
    f5_ = t.f5_;
    f6_ = t.f6_;
    return *this;
  }
 
  T0 f0_;
  T1 f1_;
  T2 f2_;
  T3 f3_;
  T4 f4_;
  T5 f5_;
  T6 f6_;
};
 
template <GTEST_8_TYPENAMES_(T)>
class GTEST_8_TUPLE_(T) {
 public:
  template <int k> friend class gtest_internal::Get;
 
  tuple() : f0_(), f1_(), f2_(), f3_(), f4_(), f5_(), f6_(), f7_() {}
 
  explicit tuple(GTEST_BY_REF_(T0) f0, GTEST_BY_REF_(T1) f1,
      GTEST_BY_REF_(T2) f2, GTEST_BY_REF_(T3) f3, GTEST_BY_REF_(T4) f4,
      GTEST_BY_REF_(T5) f5, GTEST_BY_REF_(T6) f6,
      GTEST_BY_REF_(T7) f7) : f0_(f0), f1_(f1), f2_(f2), f3_(f3), f4_(f4),
      f5_(f5), f6_(f6), f7_(f7) {}
 
  tuple(const tuple& t) : f0_(t.f0_), f1_(t.f1_), f2_(t.f2_), f3_(t.f3_),
      f4_(t.f4_), f5_(t.f5_), f6_(t.f6_), f7_(t.f7_) {}
 
  template <GTEST_8_TYPENAMES_(U)>
  tuple(const GTEST_8_TUPLE_(U)& t) : f0_(t.f0_), f1_(t.f1_), f2_(t.f2_),
      f3_(t.f3_), f4_(t.f4_), f5_(t.f5_), f6_(t.f6_), f7_(t.f7_) {}
 
  tuple& operator=(const tuple& t) { return CopyFrom(t); }
 
  template <GTEST_8_TYPENAMES_(U)>
  tuple& operator=(const GTEST_8_TUPLE_(U)& t) {
    return CopyFrom(t);
  }
 
  GTEST_DECLARE_TUPLE_AS_FRIEND_
 
  template <GTEST_8_TYPENAMES_(U)>
  tuple& CopyFrom(const GTEST_8_TUPLE_(U)& t) {
    f0_ = t.f0_;
    f1_ = t.f1_;
    f2_ = t.f2_;
    f3_ = t.f3_;
    f4_ = t.f4_;
    f5_ = t.f5_;
    f6_ = t.f6_;
    f7_ = t.f7_;
    return *this;
  }
 
  T0 f0_;
  T1 f1_;
  T2 f2_;
  T3 f3_;
  T4 f4_;
  T5 f5_;
  T6 f6_;
  T7 f7_;
};
 
template <GTEST_9_TYPENAMES_(T)>
class GTEST_9_TUPLE_(T) {
 public:
  template <int k> friend class gtest_internal::Get;
 
  tuple() : f0_(), f1_(), f2_(), f3_(), f4_(), f5_(), f6_(), f7_(), f8_() {}
 
  explicit tuple(GTEST_BY_REF_(T0) f0, GTEST_BY_REF_(T1) f1,
      GTEST_BY_REF_(T2) f2, GTEST_BY_REF_(T3) f3, GTEST_BY_REF_(T4) f4,
      GTEST_BY_REF_(T5) f5, GTEST_BY_REF_(T6) f6, GTEST_BY_REF_(T7) f7,
      GTEST_BY_REF_(T8) f8) : f0_(f0), f1_(f1), f2_(f2), f3_(f3), f4_(f4),
      f5_(f5), f6_(f6), f7_(f7), f8_(f8) {}
 
  tuple(const tuple& t) : f0_(t.f0_), f1_(t.f1_), f2_(t.f2_), f3_(t.f3_),
      f4_(t.f4_), f5_(t.f5_), f6_(t.f6_), f7_(t.f7_), f8_(t.f8_) {}
 
  template <GTEST_9_TYPENAMES_(U)>
  tuple(const GTEST_9_TUPLE_(U)& t) : f0_(t.f0_), f1_(t.f1_), f2_(t.f2_),
      f3_(t.f3_), f4_(t.f4_), f5_(t.f5_), f6_(t.f6_), f7_(t.f7_), f8_(t.f8_) {}
 
  tuple& operator=(const tuple& t) { return CopyFrom(t); }
 
  template <GTEST_9_TYPENAMES_(U)>
  tuple& operator=(const GTEST_9_TUPLE_(U)& t) {
    return CopyFrom(t);
  }
 
  GTEST_DECLARE_TUPLE_AS_FRIEND_
 
  template <GTEST_9_TYPENAMES_(U)>
  tuple& CopyFrom(const GTEST_9_TUPLE_(U)& t) {
    f0_ = t.f0_;
    f1_ = t.f1_;
    f2_ = t.f2_;
    f3_ = t.f3_;
    f4_ = t.f4_;
    f5_ = t.f5_;
    f6_ = t.f6_;
    f7_ = t.f7_;
    f8_ = t.f8_;
    return *this;
  }
 
  T0 f0_;
  T1 f1_;
  T2 f2_;
  T3 f3_;
  T4 f4_;
  T5 f5_;
  T6 f6_;
  T7 f7_;
  T8 f8_;
};
 
template <GTEST_10_TYPENAMES_(T)>
class tuple {
 public:
  template <int k> friend class gtest_internal::Get;
 
  tuple() : f0_(), f1_(), f2_(), f3_(), f4_(), f5_(), f6_(), f7_(), f8_(),
      f9_() {}
 
  explicit tuple(GTEST_BY_REF_(T0) f0, GTEST_BY_REF_(T1) f1,
      GTEST_BY_REF_(T2) f2, GTEST_BY_REF_(T3) f3, GTEST_BY_REF_(T4) f4,
      GTEST_BY_REF_(T5) f5, GTEST_BY_REF_(T6) f6, GTEST_BY_REF_(T7) f7,
      GTEST_BY_REF_(T8) f8, GTEST_BY_REF_(T9) f9) : f0_(f0), f1_(f1), f2_(f2),
      f3_(f3), f4_(f4), f5_(f5), f6_(f6), f7_(f7), f8_(f8), f9_(f9) {}
 
  tuple(const tuple& t) : f0_(t.f0_), f1_(t.f1_), f2_(t.f2_), f3_(t.f3_),
      f4_(t.f4_), f5_(t.f5_), f6_(t.f6_), f7_(t.f7_), f8_(t.f8_), f9_(t.f9_) {}
 
  template <GTEST_10_TYPENAMES_(U)>
  tuple(const GTEST_10_TUPLE_(U)& t) : f0_(t.f0_), f1_(t.f1_), f2_(t.f2_),
      f3_(t.f3_), f4_(t.f4_), f5_(t.f5_), f6_(t.f6_), f7_(t.f7_), f8_(t.f8_),
      f9_(t.f9_) {}
 
  tuple& operator=(const tuple& t) { return CopyFrom(t); }
 
  template <GTEST_10_TYPENAMES_(U)>
  tuple& operator=(const GTEST_10_TUPLE_(U)& t) {
    return CopyFrom(t);
  }
 
  GTEST_DECLARE_TUPLE_AS_FRIEND_
 
  template <GTEST_10_TYPENAMES_(U)>
  tuple& CopyFrom(const GTEST_10_TUPLE_(U)& t) {
    f0_ = t.f0_;
    f1_ = t.f1_;
    f2_ = t.f2_;
    f3_ = t.f3_;
    f4_ = t.f4_;
    f5_ = t.f5_;
    f6_ = t.f6_;
    f7_ = t.f7_;
    f8_ = t.f8_;
    f9_ = t.f9_;
    return *this;
  }
 
  T0 f0_;
  T1 f1_;
  T2 f2_;
  T3 f3_;
  T4 f4_;
  T5 f5_;
  T6 f6_;
  T7 f7_;
  T8 f8_;
  T9 f9_;
};
 
// 6.1.3.2 Tuple creation functions.
 
// Known limitations: we don't support passing an
// std::tr1::reference_wrapper<T> to make_tuple().  And we don't
// implement tie().
 
inline tuple<> make_tuple() { return tuple<>(); }
 
template <GTEST_1_TYPENAMES_(T)>
inline GTEST_1_TUPLE_(T) make_tuple(const T0& f0) {
  return GTEST_1_TUPLE_(T)(f0);
}
 
template <GTEST_2_TYPENAMES_(T)>
inline GTEST_2_TUPLE_(T) make_tuple(const T0& f0, const T1& f1) {
  return GTEST_2_TUPLE_(T)(f0, f1);
}
 
template <GTEST_3_TYPENAMES_(T)>
inline GTEST_3_TUPLE_(T) make_tuple(const T0& f0, const T1& f1, const T2& f2) {
  return GTEST_3_TUPLE_(T)(f0, f1, f2);
}
 
template <GTEST_4_TYPENAMES_(T)>
inline GTEST_4_TUPLE_(T) make_tuple(const T0& f0, const T1& f1, const T2& f2,
    const T3& f3) {
  return GTEST_4_TUPLE_(T)(f0, f1, f2, f3);
}
 
template <GTEST_5_TYPENAMES_(T)>
inline GTEST_5_TUPLE_(T) make_tuple(const T0& f0, const T1& f1, const T2& f2,
    const T3& f3, const T4& f4) {
  return GTEST_5_TUPLE_(T)(f0, f1, f2, f3, f4);
}
 
template <GTEST_6_TYPENAMES_(T)>
inline GTEST_6_TUPLE_(T) make_tuple(const T0& f0, const T1& f1, const T2& f2,
    const T3& f3, const T4& f4, const T5& f5) {
  return GTEST_6_TUPLE_(T)(f0, f1, f2, f3, f4, f5);
}
 
template <GTEST_7_TYPENAMES_(T)>
inline GTEST_7_TUPLE_(T) make_tuple(const T0& f0, const T1& f1, const T2& f2,
    const T3& f3, const T4& f4, const T5& f5, const T6& f6) {
  return GTEST_7_TUPLE_(T)(f0, f1, f2, f3, f4, f5, f6);
}
 
template <GTEST_8_TYPENAMES_(T)>
inline GTEST_8_TUPLE_(T) make_tuple(const T0& f0, const T1& f1, const T2& f2,
    const T3& f3, const T4& f4, const T5& f5, const T6& f6, const T7& f7) {
  return GTEST_8_TUPLE_(T)(f0, f1, f2, f3, f4, f5, f6, f7);
}
 
template <GTEST_9_TYPENAMES_(T)>
inline GTEST_9_TUPLE_(T) make_tuple(const T0& f0, const T1& f1, const T2& f2,
    const T3& f3, const T4& f4, const T5& f5, const T6& f6, const T7& f7,
    const T8& f8) {
  return GTEST_9_TUPLE_(T)(f0, f1, f2, f3, f4, f5, f6, f7, f8);
}
 
template <GTEST_10_TYPENAMES_(T)>
inline GTEST_10_TUPLE_(T) make_tuple(const T0& f0, const T1& f1, const T2& f2,
    const T3& f3, const T4& f4, const T5& f5, const T6& f6, const T7& f7,
    const T8& f8, const T9& f9) {
  return GTEST_10_TUPLE_(T)(f0, f1, f2, f3, f4, f5, f6, f7, f8, f9);
}
 
// 6.1.3.3 Tuple helper classes.
 
template <typename Tuple> struct tuple_size;
 
template <GTEST_0_TYPENAMES_(T)>
struct tuple_size<GTEST_0_TUPLE_(T) > {
  static const int value = 0;
};
 
template <GTEST_1_TYPENAMES_(T)>
struct tuple_size<GTEST_1_TUPLE_(T) > {
  static const int value = 1;
};
 
template <GTEST_2_TYPENAMES_(T)>
struct tuple_size<GTEST_2_TUPLE_(T) > {
  static const int value = 2;
};
 
template <GTEST_3_TYPENAMES_(T)>
struct tuple_size<GTEST_3_TUPLE_(T) > {
  static const int value = 3;
};
 
template <GTEST_4_TYPENAMES_(T)>
struct tuple_size<GTEST_4_TUPLE_(T) > {
  static const int value = 4;
};
 
template <GTEST_5_TYPENAMES_(T)>
struct tuple_size<GTEST_5_TUPLE_(T) > {
  static const int value = 5;
};
 
template <GTEST_6_TYPENAMES_(T)>
struct tuple_size<GTEST_6_TUPLE_(T) > {
  static const int value = 6;
};
 
template <GTEST_7_TYPENAMES_(T)>
struct tuple_size<GTEST_7_TUPLE_(T) > {
  static const int value = 7;
};
 
template <GTEST_8_TYPENAMES_(T)>
struct tuple_size<GTEST_8_TUPLE_(T) > {
  static const int value = 8;
};
 
template <GTEST_9_TYPENAMES_(T)>
struct tuple_size<GTEST_9_TUPLE_(T) > {
  static const int value = 9;
};
 
template <GTEST_10_TYPENAMES_(T)>
struct tuple_size<GTEST_10_TUPLE_(T) > {
  static const int value = 10;
};
 
template <int k, class Tuple>
struct tuple_element {
  typedef typename gtest_internal::TupleElement<
      k < (tuple_size<Tuple>::value), k, Tuple>::type type;
};
 
#define GTEST_TUPLE_ELEMENT_(k, Tuple) typename tuple_element<k, Tuple >::type
 
// 6.1.3.4 Element access.
 
namespace gtest_internal {
 
template <>
class Get<0> {
 public:
  template <class Tuple>
  static GTEST_ADD_REF_(GTEST_TUPLE_ELEMENT_(0, Tuple))
  Field(Tuple& t) { return t.f0_; }  // NOLINT
 
  template <class Tuple>
  static GTEST_BY_REF_(GTEST_TUPLE_ELEMENT_(0, Tuple))
  ConstField(const Tuple& t) { return t.f0_; }
};
 
template <>
class Get<1> {
 public:
  template <class Tuple>
  static GTEST_ADD_REF_(GTEST_TUPLE_ELEMENT_(1, Tuple))
  Field(Tuple& t) { return t.f1_; }  // NOLINT
 
  template <class Tuple>
  static GTEST_BY_REF_(GTEST_TUPLE_ELEMENT_(1, Tuple))
  ConstField(const Tuple& t) { return t.f1_; }
};
 
template <>
class Get<2> {
 public:
  template <class Tuple>
  static GTEST_ADD_REF_(GTEST_TUPLE_ELEMENT_(2, Tuple))
  Field(Tuple& t) { return t.f2_; }  // NOLINT
 
  template <class Tuple>
  static GTEST_BY_REF_(GTEST_TUPLE_ELEMENT_(2, Tuple))
  ConstField(const Tuple& t) { return t.f2_; }
};
 
template <>
class Get<3> {
 public:
  template <class Tuple>
  static GTEST_ADD_REF_(GTEST_TUPLE_ELEMENT_(3, Tuple))
  Field(Tuple& t) { return t.f3_; }  // NOLINT
 
  template <class Tuple>
  static GTEST_BY_REF_(GTEST_TUPLE_ELEMENT_(3, Tuple))
  ConstField(const Tuple& t) { return t.f3_; }
};
 
template <>
class Get<4> {
 public:
  template <class Tuple>
  static GTEST_ADD_REF_(GTEST_TUPLE_ELEMENT_(4, Tuple))
  Field(Tuple& t) { return t.f4_; }  // NOLINT
 
  template <class Tuple>
  static GTEST_BY_REF_(GTEST_TUPLE_ELEMENT_(4, Tuple))
  ConstField(const Tuple& t) { return t.f4_; }
};
 
template <>
class Get<5> {
 public:
  template <class Tuple>
  static GTEST_ADD_REF_(GTEST_TUPLE_ELEMENT_(5, Tuple))
  Field(Tuple& t) { return t.f5_; }  // NOLINT
 
  template <class Tuple>
  static GTEST_BY_REF_(GTEST_TUPLE_ELEMENT_(5, Tuple))
  ConstField(const Tuple& t) { return t.f5_; }
};
 
template <>
class Get<6> {
 public:
  template <class Tuple>
  static GTEST_ADD_REF_(GTEST_TUPLE_ELEMENT_(6, Tuple))
  Field(Tuple& t) { return t.f6_; }  // NOLINT
 
  template <class Tuple>
  static GTEST_BY_REF_(GTEST_TUPLE_ELEMENT_(6, Tuple))
  ConstField(const Tuple& t) { return t.f6_; }
};
 
template <>
class Get<7> {
 public:
  template <class Tuple>
  static GTEST_ADD_REF_(GTEST_TUPLE_ELEMENT_(7, Tuple))
  Field(Tuple& t) { return t.f7_; }  // NOLINT
 
  template <class Tuple>
  static GTEST_BY_REF_(GTEST_TUPLE_ELEMENT_(7, Tuple))
  ConstField(const Tuple& t) { return t.f7_; }
};
 
template <>
class Get<8> {
 public:
  template <class Tuple>
  static GTEST_ADD_REF_(GTEST_TUPLE_ELEMENT_(8, Tuple))
  Field(Tuple& t) { return t.f8_; }  // NOLINT
 
  template <class Tuple>
  static GTEST_BY_REF_(GTEST_TUPLE_ELEMENT_(8, Tuple))
  ConstField(const Tuple& t) { return t.f8_; }
};
 
template <>
class Get<9> {
 public:
  template <class Tuple>
  static GTEST_ADD_REF_(GTEST_TUPLE_ELEMENT_(9, Tuple))
  Field(Tuple& t) { return t.f9_; }  // NOLINT
 
  template <class Tuple>
  static GTEST_BY_REF_(GTEST_TUPLE_ELEMENT_(9, Tuple))
  ConstField(const Tuple& t) { return t.f9_; }
};
 
}  // namespace gtest_internal
 
template <int k, GTEST_10_TYPENAMES_(T)>
GTEST_ADD_REF_(GTEST_TUPLE_ELEMENT_(k, GTEST_10_TUPLE_(T)))
get(GTEST_10_TUPLE_(T)& t) {
  return gtest_internal::Get<k>::Field(t);
}
 
template <int k, GTEST_10_TYPENAMES_(T)>
GTEST_BY_REF_(GTEST_TUPLE_ELEMENT_(k,  GTEST_10_TUPLE_(T)))
get(const GTEST_10_TUPLE_(T)& t) {
  return gtest_internal::Get<k>::ConstField(t);
}
 
// 6.1.3.5 Relational operators
 
// We only implement == and !=, as we don't have a need for the rest yet.
 
namespace gtest_internal {
 
// SameSizeTuplePrefixComparator<k, k>::Eq(t1, t2) returns true if the
// first k fields of t1 equals the first k fields of t2.
// SameSizeTuplePrefixComparator(k1, k2) would be a compiler error if
// k1 != k2.
template <int kSize1, int kSize2>
struct SameSizeTuplePrefixComparator;
 
template <>
struct SameSizeTuplePrefixComparator<0, 0> {
  template <class Tuple1, class Tuple2>
  static bool Eq(const Tuple1& /* t1 */, const Tuple2& /* t2 */) {
    return true;
  }
};
 
template <int k>
struct SameSizeTuplePrefixComparator<k, k> {
  template <class Tuple1, class Tuple2>
  static bool Eq(const Tuple1& t1, const Tuple2& t2) {
    return SameSizeTuplePrefixComparator<k - 1, k - 1>::Eq(t1, t2) &&
        ::std::tr1::get<k - 1>(t1) == ::std::tr1::get<k - 1>(t2);
  }
};
 
}  // namespace gtest_internal
 
template <GTEST_10_TYPENAMES_(T), GTEST_10_TYPENAMES_(U)>
inline bool operator==(const GTEST_10_TUPLE_(T)& t,
                       const GTEST_10_TUPLE_(U)& u) {
  return gtest_internal::SameSizeTuplePrefixComparator<
      tuple_size<GTEST_10_TUPLE_(T) >::value,
      tuple_size<GTEST_10_TUPLE_(U) >::value>::Eq(t, u);
}
 
template <GTEST_10_TYPENAMES_(T), GTEST_10_TYPENAMES_(U)>
inline bool operator!=(const GTEST_10_TUPLE_(T)& t,
                       const GTEST_10_TUPLE_(U)& u) { return !(t == u); }
 
// 6.1.4 Pairs.
// Unimplemented.
 
}  // namespace tr1
}  // namespace std
 
#undef GTEST_0_TUPLE_
#undef GTEST_1_TUPLE_
#undef GTEST_2_TUPLE_
#undef GTEST_3_TUPLE_
#undef GTEST_4_TUPLE_
#undef GTEST_5_TUPLE_
#undef GTEST_6_TUPLE_
#undef GTEST_7_TUPLE_
#undef GTEST_8_TUPLE_
#undef GTEST_9_TUPLE_
#undef GTEST_10_TUPLE_
 
#undef GTEST_0_TYPENAMES_
#undef GTEST_1_TYPENAMES_
#undef GTEST_2_TYPENAMES_
#undef GTEST_3_TYPENAMES_
#undef GTEST_4_TYPENAMES_
#undef GTEST_5_TYPENAMES_
#undef GTEST_6_TYPENAMES_
#undef GTEST_7_TYPENAMES_
#undef GTEST_8_TYPENAMES_
#undef GTEST_9_TYPENAMES_
#undef GTEST_10_TYPENAMES_
 
#undef GTEST_DECLARE_TUPLE_AS_FRIEND_
#undef GTEST_BY_REF_
#undef GTEST_ADD_REF_
#undef GTEST_TUPLE_ELEMENT_
 
#endif  // GTEST_INCLUDE_GTEST_INTERNAL_GTEST_TUPLE_H_