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Adapting test for explicit variadics to fail for gcc 4.6 #1952

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merged 1 commit into from Jan 9, 2016
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Adapting test for explicit variadics to fail for gcc 4.6 #1952

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17 changes: 14 additions & 3 deletions cmake/tests/cxx11_explicit_variadic_templates.cpp
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Expand Up @@ -6,7 +6,8 @@
template <typename ... Ts>
struct tuple
{
tuple() {}
template <typename ... Args>
tuple(Args && ...) {}
};

struct tag1 {};
Expand All @@ -26,12 +27,22 @@ struct tagged_type
};

template <typename ... Tags, typename ... Ts>
tuple<typename tagged_type<Tags, Ts>::type...> foo(Ts && ...)
tuple<typename tagged_type<Tags, Ts>::type...>
foo(Ts && ...)
{
return tuple<typename tagged_type<Tags, Ts>::type...>();
}

template <typename ... Tags, typename ... Ts>
tuple<typename tagged_type<Tags, Ts>::type...>
foo(tuple<Ts...> && t)
{
return tuple<typename tagged_type<Tags, Ts>::type...>();
}

int main()
{
auto t = foo<tag1, tag2, tag3>(42, 43, 44);
auto t1 = foo<tag1, tag2, tag3>(42, 43, 44);
auto t2 = foo<tag1, tag2, tag3>(tuple<int, int, int>(42, 43, 44));
}