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20187736b3
Fix up cpp_bin_float for very small bit counts. Adds support for emulating float16_t and bfloat16_t. Also adds test cases, and updates test_arithmetic.hpp to cope with testing small bit count types. Fixes https://github.com/boostorg/multiprecision/issues/576.
29 lines
1.6 KiB
C++
29 lines
1.6 KiB
C++
///////////////////////////////////////////////////////////////
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// Copyright 2012 John Maddock. Distributed under the Boost
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// Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at https://www.boost.org/LICENSE_1_0.txt
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#include <boost/multiprecision/cpp_bin_float.hpp>
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#include "libs/multiprecision/test/test_arithmetic.hpp"
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#if 0
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template <unsigned Digits, boost::multiprecision::backends::digit_base_type DigitBase, class Allocator, class Exponent, Exponent MinExponent, Exponent MaxExponent, boost::multiprecision::expression_template_option ET>
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struct related_type<boost::multiprecision::number<boost::multiprecision::cpp_bin_float<Digits, DigitBase, Allocator, Exponent, MinExponent, MaxExponent>, ET> >
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{
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typedef boost::multiprecision::number<boost::multiprecision::cpp_bin_float<Digits, DigitBase, Allocator, Exponent, MinExponent, MaxExponent>, ET> number_type;
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typedef boost::multiprecision::number<boost::multiprecision::cpp_bin_float<((std::numeric_limits<number_type>::digits / 2) > std::numeric_limits<long double>::digits ? Digits / 2 : Digits), DigitBase, Allocator, Exponent, MinExponent, MaxExponent>, ET> type;
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};
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#endif
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int main()
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{
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using namespace boost::multiprecision;
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typedef number<backends::cpp_bin_float<11, backends::digit_base_2, void, std::int16_t, -14, 15>, et_off> float16_t;
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typedef number<backends::cpp_bin_float<8, backends::digit_base_2, void, std::int16_t, -126, 127>, et_off> bfloat16_t;
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test<float16_t>();
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test<bfloat16_t>();
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return boost::report_errors();
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}
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