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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/template.bitset/bitset.hash/bitset.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.
//
//===----------------------------------------------------------------------===//
// <functional>
// template <class T>
// struct hash
// : public unary_function<T, size_t>
// {
// size_t operator()(T val) const;
// };
// Not very portable
#include <bitset>
#include <cassert>
#include <type_traits>
template <std::size_t N>
void
test()
{
typedef std::bitset<N> T;
typedef std::hash<T> H;
static_assert((std::is_base_of<std::unary_function<T, std::size_t>,
H>::value), "");
H h;
T bs(static_cast<unsigned long long>(N));
assert(h(bs) == N);
}
int main()
{
test<0>();
test<10>();
test<100>();
test<1000>();
}