tuple (pack_arguments): Rename to forward_as_tuple and simplify, per US 98 and US 99.
2010-08-06 Paolo Carlini <paolo.carlini@oracle.com> * include/std/tuple (pack_arguments): Rename to forward_as_tuple and simplify, per US 98 and US 99. * testsuite/20_util/tuple/creation_functions/pack_arguments.cc: Rename to... * testsuite/20_util/tuple/creation_functions/forward_as_tuple.cc: ... this, adjust. * testsuite/20_util/pair/piecewise.cc: Adjust. From-SVN: r162948
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@ -1,3 +1,13 @@
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2010-08-06 Paolo Carlini <paolo.carlini@oracle.com>
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* include/std/tuple (pack_arguments): Rename to forward_as_tuple
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and simplify, per US 98 and US 99.
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* testsuite/20_util/tuple/creation_functions/pack_arguments.cc:
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Rename to...
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* testsuite/20_util/tuple/creation_functions/forward_as_tuple.cc:
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... this, adjust.
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* testsuite/20_util/pair/piecewise.cc: Adjust.
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2010-08-06 Paolo Carlini <paolo.carlini@oracle.com>
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* include/std/tuple (begin, end): Remove per GB 87.
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@ -549,27 +549,10 @@ namespace std
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return __result_type(std::forward<_Elements>(__args)...);
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}
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template<typename _Tp, bool = is_array<_Tp>::value>
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struct __pa_add_rvalue_reference_helper
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{ typedef typename std::add_rvalue_reference<_Tp>::type __type; };
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template<typename _Tp>
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struct __pa_add_rvalue_reference_helper<_Tp, true>
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{ typedef _Tp& __type; };
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template<typename _Tp>
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struct __pa_add_rvalue_reference
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: public __pa_add_rvalue_reference_helper<_Tp>
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{ };
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template<typename... _Elements>
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inline tuple<typename __pa_add_rvalue_reference<_Elements>::__type...>
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pack_arguments(_Elements&&... __args)
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{
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typedef tuple<typename __pa_add_rvalue_reference<_Elements>::__type...>
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__result_type;
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return __result_type(std::forward<_Elements>(__args)...);
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}
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inline tuple<_Elements&&...>
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forward_as_tuple(_Elements&&... __args)
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{ return tuple<_Elements&&...>(std::forward<_Elements>(__args)...); }
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template<std::size_t...> struct __index_holder { };
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@ -70,21 +70,21 @@ void test01()
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bool test __attribute__((unused)) = true;
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std::pair<type_one, type_zero> pp0(std::piecewise_construct_t(),
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std::pack_arguments(-3),
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std::pack_arguments());
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std::forward_as_tuple(-3),
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std::forward_as_tuple());
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VERIFY( pp0.first.get() == -3 );
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VERIFY( pp0.second.get() == 757 );
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std::pair<type_one, type_two> pp1(std::piecewise_construct_t(),
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std::pack_arguments(6),
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std::pack_arguments(5, 4));
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std::forward_as_tuple(6),
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std::forward_as_tuple(5, 4));
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VERIFY( pp1.first.get() == 6 );
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VERIFY( pp1.second.get1() == 5 );
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VERIFY( pp1.second.get2() == 4 );
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std::pair<type_two, type_two> pp2(std::piecewise_construct_t(),
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std::pack_arguments(2, 1),
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std::pack_arguments(-1, -3));
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std::forward_as_tuple(2, 1),
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std::forward_as_tuple(-1, -3));
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VERIFY( pp2.first.get1() == 2 );
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VERIFY( pp2.first.get2() == 1 );
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VERIFY( pp2.second.get1() == -1 );
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@ -30,16 +30,16 @@ test01()
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{
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bool test __attribute__((unused)) = true;
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std::pack_arguments();
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std::forward_as_tuple();
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VERIFY( std::get<0>(std::pack_arguments(-1)) == -1 );
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VERIFY( (std::is_same<decltype(std::pack_arguments(-1)),
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VERIFY( std::get<0>(std::forward_as_tuple(-1)) == -1 );
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VERIFY( (std::is_same<decltype(std::forward_as_tuple(-1)),
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std::tuple<int&&>>::value) );
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const int i1 = 1;
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const int i2 = 2;
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const double d1 = 4.0;
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auto t1 = std::pack_arguments(i1, i2, d1);
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auto t1 = std::forward_as_tuple(i1, i2, d1);
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VERIFY( (std::is_same<decltype(t1), std::tuple<const int&,
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const int&, const double&>>::value) );
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VERIFY( std::get<0>(t1) == i1 );
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@ -48,7 +48,7 @@ test01()
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typedef const int a_type1[3];
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a_type1 a1 = { -1, 1, 2 };
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auto t2 = std::pack_arguments(a1);
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auto t2 = std::forward_as_tuple(a1);
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VERIFY( (std::is_same<decltype(t2), std::tuple<a_type1&>>::value) );
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VERIFY( std::get<0>(t2)[0] == a1[0] );
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VERIFY( std::get<0>(t2)[1] == a1[1] );
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@ -57,7 +57,7 @@ test01()
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typedef int a_type2[2];
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a_type2 a2 = { 2, -2 };
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volatile int i4 = 1;
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auto t3 = std::pack_arguments(a2, i4);
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auto t3 = std::forward_as_tuple(a2, i4);
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VERIFY( (std::is_same<decltype(t3), std::tuple<a_type2&,
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volatile int&>>::value) );
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VERIFY( std::get<0>(t3)[0] == a2[0] );
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