container_hash/test/hash_complex_test.cpp
2017-12-29 13:58:48 +00:00

111 lines
3.5 KiB
C++

// Copyright 2005-2009 Daniel James.
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
#include "./config.hpp"
#if !defined(BOOST_HASH_TEST_EXTENSIONS)
int main() {}
#else
#ifdef BOOST_HASH_TEST_STD_INCLUDES
# include <functional>
#else
# include <boost/container_hash/hash.hpp>
#endif
#include <boost/core/lightweight_test.hpp>
#if defined(BOOST_MSVC)
#pragma warning(disable:4244) // conversion from 'unsigned long' to
// 'unsigned short', possible loss of data
#pragma warning(disable:4245) // conversion from 'int' to
// 'const unsigned short',
// signed/unsigned mismatch
#pragma warning(disable:4305) // truncation from 'double' to
// 'const std::complex<float>::_Ty'
#pragma warning(disable:4309) // truncation of constant value
#pragma warning(disable:4512) // assignment operator could not be generated
#if BOOST_MSVC < 1400
#pragma warning(disable:4267) // conversion from 'size_t' to 'unsigned int',
// possible loss of data
#endif
#endif
#if defined(__GNUC__) && !defined(BOOST_INTEL_CXX_VERSION)
#pragma GCC diagnostic ignored "-Wfloat-equal"
#endif
#include <complex>
#include <sstream>
#include <boost/limits.hpp>
template <class T>
void generic_complex_tests(std::complex<T> v)
{
BOOST_HASH_TEST_NAMESPACE::hash<std::complex<T> > complex_hasher;
BOOST_TEST(complex_hasher(v) == complex_hasher(v));
BOOST_HASH_TEST_NAMESPACE::hash<T> real_hasher;
T real = v.real();
T imag = v.imag();
BOOST_TEST(real_hasher(real) == complex_hasher(std::complex<T>(real)));
if(imag != 0 && real_hasher(real) == complex_hasher(v)) {
std::ostringstream os;
os<<"real_hasher("<<real<<") == complex_hasher("
<<v.real()<<" + "<<v.imag()<<"i) == "
<<real_hasher(real)<<" (This might not be a bug).";
BOOST_ERROR(os.str().c_str());
}
}
template <class Float>
void complex_float_tests(Float*)
{
typedef std::complex<Float> complex;
generic_complex_tests(complex(0,0));
generic_complex_tests(complex(0.5,0));
generic_complex_tests(complex(25,0));
generic_complex_tests(complex(25,0));
generic_complex_tests(complex(static_cast<Float>(-67.5324535),static_cast<Float>(56.23578678)));
}
template <class Integer>
void complex_integral_tests(Integer*)
{
typedef std::complex<Integer> complex;
generic_complex_tests(complex(0,0));
generic_complex_tests(complex(15342,124));
generic_complex_tests(complex(25,54356));
generic_complex_tests(complex(5325,2346));
generic_complex_tests(complex(Integer(-243897),Integer(-49923874)));
generic_complex_tests(complex(Integer(-543),Integer(763)));
}
int main()
{
// I've comments out the short and unsigned short tests
// as they cause warnings and don't really test
// anything that the other tests already deal with.
complex_float_tests((float*) 0);
complex_float_tests((double*) 0);
complex_float_tests((long double*) 0);
//complex_integral_tests((short*) 0);
complex_integral_tests((int*) 0);
complex_integral_tests((long*) 0);
//complex_integral_tests((unsigned short*) 0);
complex_integral_tests((unsigned int*) 0);
complex_integral_tests((unsigned long*) 0);
return boost::report_errors();
}
#endif // BOOST_HASH_TEST_EXTENSIONS