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135 lines
4.1 KiB
C++
135 lines
4.1 KiB
C++
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// Copyright 2005-2009 Daniel James.
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// Distributed under 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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#define _SILENCE_NONFLOATING_COMPLEX_DEPRECATION_WARNING
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#include "./config.hpp"
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#if !defined(BOOST_HASH_TEST_EXTENSIONS)
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int main() {}
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#else
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#ifdef BOOST_HASH_TEST_STD_INCLUDES
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# include <functional>
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#else
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# include <boost/container_hash/hash.hpp>
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#endif
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#include <boost/core/lightweight_test.hpp>
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#if defined(BOOST_MSVC)
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#pragma warning(disable:4244) // conversion from 'unsigned long' to
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// 'unsigned short', possible loss of data
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#pragma warning(disable:4245) // conversion from 'int' to
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// 'const unsigned short',
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// signed/unsigned mismatch
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#pragma warning(disable:4305) // truncation from 'double' to
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// 'const std::complex<float>::_Ty'
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#pragma warning(disable:4309) // truncation of constant value
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#pragma warning(disable:4512) // assignment operator could not be generated
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#pragma warning(disable:4996) // std::complex<Integer> is deprecated
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#if BOOST_MSVC < 1400
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#pragma warning(disable:4267) // conversion from 'size_t' to 'unsigned int',
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// possible loss of data
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#endif
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#endif
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#if ( defined(__GNUC__) || defined(__clang__) ) && !defined(BOOST_INTEL_CXX_VERSION)
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#pragma GCC diagnostic ignored "-Wfloat-equal"
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#endif
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#include <boost/limits.hpp>
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#include <complex>
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#include <sstream>
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#include <set>
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template <class T>
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void generic_complex_tests(std::complex<T> v)
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{
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BOOST_HASH_TEST_NAMESPACE::hash<std::complex<T> > complex_hasher;
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BOOST_TEST(complex_hasher(v) == complex_hasher(v));
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BOOST_HASH_TEST_NAMESPACE::hash<T> real_hasher;
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T real = v.real();
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T imag = v.imag();
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BOOST_TEST(real_hasher(real) == complex_hasher(std::complex<T>(real)));
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if(imag != 0 && real_hasher(real) == complex_hasher(v)) {
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std::ostringstream os;
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os<<"real_hasher("<<real<<") == complex_hasher("
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<<v.real()<<" + "<<v.imag()<<"i) == "
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<<real_hasher(real)<<" (This might not be a bug).";
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BOOST_ERROR(os.str().c_str());
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}
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}
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template <class Float>
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void complex_float_tests(Float*)
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{
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typedef std::complex<Float> complex;
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generic_complex_tests(complex(0,0));
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generic_complex_tests(complex(0.5,0));
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generic_complex_tests(complex(25,0));
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generic_complex_tests(complex(25,0));
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generic_complex_tests(complex(static_cast<Float>(-67.5324535),static_cast<Float>(56.23578678)));
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}
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template <class Integer>
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void complex_integral_tests(Integer*)
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{
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typedef std::complex<Integer> complex;
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generic_complex_tests(complex(0,0));
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generic_complex_tests(complex(15342,124));
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generic_complex_tests(complex(25,54356));
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generic_complex_tests(complex(5325,2346));
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generic_complex_tests(complex(Integer(-243897),Integer(-49923874)));
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generic_complex_tests(complex(Integer(-543),Integer(763)));
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}
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template<class T> void complex_grid_test( short N )
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{
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std::set<std::size_t> hashes;
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for( short i = 0; i < N; ++i )
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{
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for( short j = 0; j < N; ++j )
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{
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hashes.insert( boost::hash< std::complex<T> >()( std::complex<T>( i, j ) ) );
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}
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}
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BOOST_TEST_EQ( hashes.size(), static_cast<std::size_t>( N * N ) );
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}
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int main()
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{
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// I've comments out the short and unsigned short tests
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// as they cause warnings and don't really test
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// anything that the other tests already deal with.
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complex_float_tests((float*) 0);
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complex_float_tests((double*) 0);
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complex_float_tests((long double*) 0);
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//complex_integral_tests((short*) 0);
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complex_integral_tests((int*) 0);
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complex_integral_tests((long*) 0);
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//complex_integral_tests((unsigned short*) 0);
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complex_integral_tests((unsigned int*) 0);
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complex_integral_tests((unsigned long*) 0);
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complex_grid_test<int>( 16 );
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complex_grid_test<float>( 16 );
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complex_grid_test<double>( 16 );
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complex_grid_test<long double>( 16 );
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return boost::report_errors();
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}
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#endif // BOOST_HASH_TEST_EXTENSIONS
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