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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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48
test/strings/basic.string.hash/strings.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 <string>
#include <cassert>
#include <type_traits>
template <class T>
void
test()
{
typedef std::hash<T> H;
static_assert((std::is_base_of<std::unary_function<T, std::size_t>,
H>::value), "");
H h;
std::string g1 = "1234567890";
std::string g2 = "1234567891";
T s1(g1.begin(), g1.end());
T s2(g2.begin(), g2.end());
assert(h(s1) != h(s2));
}
int main()
{
test<std::string>();
#ifndef _LIBCPP_HAS_NO_UNICODE_CHARS
test<std::u16string>();
test<std::u32string>();
#endif
test<std::wstring>();
}