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a32f657409
Disable warnings from deprecated numeric_limits members. When building with MSVC in C++23 mode. Add test case.
33 lines
1.4 KiB
C++
33 lines
1.4 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Copyright 2023 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 http://www.boost.org/LICENSE_1_0.txt)
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//
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// In C++23 and later std::numeric_limits<>::has_denorm along with type
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// float_denorm_style are deprecated, and MSVC generates either a C4996
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// warning, or when building with /cdl (the recomended default for the IDE)
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// a hard error. It is sufficient to include our headers to reproduce the
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// issue, unless all uses of float_denorm_style are guarded by #pragma warning(disable : 4996)
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//
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// Note that other compilers may follow suite in due course, and in time float_denorm_style
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// will be removed completely. For now though we DO need to provide numeric_limits<>::has_denorm
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// in our specializations, as it's only deprecated, not removed as of C++23.
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//
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// See https://github.com/boostorg/multiprecision/issues/573
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#include <boost/multiprecision/cpp_dec_float.hpp>
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#include <boost/multiprecision/cpp_bin_float.hpp>
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#include <boost/multiprecision/cpp_int.hpp>
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#include <iostream>
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int main()
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{
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boost::multiprecision::cpp_dec_float_50 f1(2);
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std::cout << tgamma(f1) << std::endl;
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boost::multiprecision::cpp_bin_float_50 f2(2);
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std::cout << tgamma(f2) << std::endl;
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boost::multiprecision::cpp_int i = 2;
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std::cout << i * i << std::endl;
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}
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