forked from boostorg/container_hash
71 lines
2.0 KiB
C++
71 lines
2.0 KiB
C++
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// Copyright Daniel James 2005. Use, modification, and distribution are
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// subject to the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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#include <boost/functional/hash/hash.hpp>
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#define BOOST_AUTO_TEST_MAIN
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#include <boost/test/auto_unit_test.hpp>
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#include <boost/preprocessor/cat.hpp>
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#include <boost/limits.hpp>
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#include <boost/mpl/assert.hpp>
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#include <boost/type_traits/is_base_and_derived.hpp>
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#include "./compile_time.hpp"
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template <class T>
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void numeric_test()
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{
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BOOST_CHECK(compile_time_tests<T>::success);
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boost::hash<T> x1;
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boost::hash<T> x2;
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BOOST_CHECK_EQUAL(x1(T(0)), x2(T(0)));
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BOOST_CHECK_EQUAL(x1(T(10)), x2(T(10)));
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BOOST_CHECK_EQUAL(x1(T(25)), x2(T(25)));
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BOOST_CHECK_EQUAL(x1(T(5) - T(5)), x2(T(0)));
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BOOST_CHECK_EQUAL(x1(T(6) + T(4)), x2(T(10)));
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typedef std::numeric_limits<T> limits;
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BOOST_CHECK(limits::is_specialized);
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BOOST_CHECK_EQUAL(x1((limits::min)()), x2((limits::min)()));
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BOOST_CHECK_EQUAL(x1((limits::max)()), x2((limits::max)()));
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// A hash function can legally fail these tests, but it'll not be a good
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// sign.
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if(T(1) != T(-1))
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BOOST_CHECK(x1(T(1)) != x2(T(-1)));
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if(T(1) != T(2))
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BOOST_CHECK(x1(T(1)) != x2(T(2)));
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if((limits::max)() != (limits::max)() - 1)
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BOOST_CHECK(x1((limits::max)()) != x2((limits::max)() - 1));
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}
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#define NUMERIC_TEST(type, name) \
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BOOST_AUTO_UNIT_TEST(BOOST_PP_CAT(test_, name)) { \
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numeric_test<type>(); \
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}
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NUMERIC_TEST(bool, bool)
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NUMERIC_TEST(char, char)
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NUMERIC_TEST(signed char, schar)
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NUMERIC_TEST(unsigned char, uchar)
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#ifndef BOOST_NO_INTRINSIC_WCHAR_T
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NUMERIC_TEST(wchar_t, wchar)
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#endif
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NUMERIC_TEST(short, short)
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NUMERIC_TEST(unsigned short, ushort)
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NUMERIC_TEST(int, int)
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NUMERIC_TEST(unsigned int, uint)
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NUMERIC_TEST(long, hash_long)
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NUMERIC_TEST(unsigned long, ulong)
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NUMERIC_TEST(float, float)
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NUMERIC_TEST(double, double)
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NUMERIC_TEST(long double, ldouble)
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