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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <tuple>
// template <class... Types> class tuple;
// template <class... Types, class Alloc>
// struct uses_allocator<tuple<Types...>, Alloc> : true_type { };
// UNSUPPORTED: c++98, c++03
#include <tuple>
#include <type_traits>
struct A {};
int main()
{
{
typedef std::tuple<> T;
static_assert((std::is_base_of<std::true_type,
std::uses_allocator<T, A>>::value), "");
}
{
typedef std::tuple<int> T;
static_assert((std::is_base_of<std::true_type,
std::uses_allocator<T, A>>::value), "");
}
{
typedef std::tuple<char, int> T;
static_assert((std::is_base_of<std::true_type,
std::uses_allocator<T, A>>::value), "");
}
{
typedef std::tuple<double&, char, int> T;
static_assert((std::is_base_of<std::true_type,
std::uses_allocator<T, A>>::value), "");
}
}
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