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libcxx initial import

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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@103490 91177308-0d34-0410-b5e6-96231b3b80d8
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Howard Hinnant
2010-05-11 19:42:16 +00:00
commit bc8d3f97eb
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44
test/utilities/tuple/tuple.tuple/tuple.traits/uses_allocator.pass.cpp Normal file
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//===----------------------------------------------------------------------===//
//
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <tuple>
// template <class... Types> class tuple;
// template <class... Types, class Alloc>
// struct uses_allocator<tuple<Types...>, Alloc> : true_type { };
#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), "");
}
}