annotate DEPENDENCIES/generic/include/boost/multiprecision/detail/big_lanczos.hpp @ 133:4acb5d8d80b6
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Don't fail environmental check if README.md exists (but .txt and no-suffix don't)
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Chris Cannam |
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Tue, 30 Jul 2019 12:25:44 +0100 |
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1
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2 // Copyright (c) 2011 John Maddock
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3 // Use, modification and distribution are subject to the
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4 // Boost Software License, Version 1.0. (See accompanying file
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5 // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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6
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7 #ifndef BOOST_MP_BIG_LANCZOS
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8 #define BOOST_MP_BIG_LANCZOS
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9
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10 #include <boost/math/bindings/detail/big_lanczos.hpp>
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11
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12 namespace boost{ namespace math{
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13
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14 namespace lanczos{
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15
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16 template <class T, class Policy>
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17 struct lanczos;
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18
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19 template<class Backend, boost::multiprecision::expression_template_option ExpressionTemplates, class Policy>
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20 struct lanczos<multiprecision::number<Backend, ExpressionTemplates>, Policy>
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21 {
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22 typedef typename boost::math::policies::precision<multiprecision::number<Backend, ExpressionTemplates>, Policy>::type precision_type;
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23 typedef typename mpl::if_c<
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24 precision_type::value <= 73,
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25 lanczos13UDT,
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26 typename mpl::if_c<
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27 precision_type::value <= 122,
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28 lanczos22UDT,
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29 undefined_lanczos
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30 >::type
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31 >::type type;
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32 };
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33
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34 } // namespace lanczos
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35
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36 }} // namespaces
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37
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38 #endif
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39
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