tqcq
99c258107b
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Co-authored-by: tqcq <99722391+tqcq@users.noreply.github.com> Reviewed-on: #2
84 lines
3.1 KiB
C++
84 lines
3.1 KiB
C++
/*
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* Copyright (c) 2023, Roland Bock
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sqlpp11/data_types/floating_point.h>
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#include <sqlpp11/detail/float_safe_ostringstream.h>
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#include <sqlpp11/value.h>
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#include "compare.h"
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namespace
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{
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template <typename T>
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void float_safe_ostringstream_serializes_value_as(int line, T value, std::string expected)
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{
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sqlpp::detail::float_safe_ostringstream os;
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os << value;
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assert_equal(line, os.str(), expected);
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}
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template <typename T>
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void float_safe_ostringstream_serializes_in_deserializable_format(int line, T value)
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{
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sqlpp::detail::float_safe_ostringstream os;
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os << value;
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std::istringstream is{os.str()};
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T deserialized;
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is >> deserialized;
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assert_equal(line, deserialized, value);
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}
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template <typename T>
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std::string string_for_10_0000086()
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{
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switch (std::numeric_limits<T>::max_digits10)
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{
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case 9:
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return "10.0000086";
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case 17:
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return "10.000008599999999";
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case 21:
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return "10.0000086000000000001";
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default:
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throw std::logic_error("Unknown floating point digit count");
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}
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}
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} // namespace
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int Float(int, char*[])
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{
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float_safe_ostringstream_serializes_value_as(__LINE__, 10.0000086f, string_for_10_0000086<float>());
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float_safe_ostringstream_serializes_value_as(__LINE__, 10.0000086, string_for_10_0000086<double>());
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float_safe_ostringstream_serializes_value_as(__LINE__, 10.0000086l, string_for_10_0000086<long double>());
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float_safe_ostringstream_serializes_in_deserializable_format(__LINE__, 10.0000086f);
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float_safe_ostringstream_serializes_in_deserializable_format(__LINE__, 10.0000086);
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float_safe_ostringstream_serializes_in_deserializable_format(__LINE__, 10.0000086l);
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compare(__LINE__, sqlpp::value(10.0000114), "10.0000114");
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return 0;
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}
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