585da50d7d
This PR adds the code of Boost.Math as of version 1.89 into the third-party directory, as discussed in a recent RFC [1]. The goal is for this code to be used as a back-end for the C++17 Math Special Functions. As explained in third-paty/README.md, this code is cleared for usage inside libc++ for the Math Special functions, however the LLVM Foundation should be consulted before using this code anywhere else in the LLVM project, due to the fact that it is under the Boost Software License (as opposed to the usual LLVM license). See the RFC [1] for more details. [1]: https://discourse.llvm.org/t/rfc-libc-taking-a-dependency-on-boost-math-for-the-c-17-math-special-functions
70 lines
1.5 KiB
C++
70 lines
1.5 KiB
C++
// Copyright (c) 2024 Matt Borland
|
|
// Use, modification and distribution are subject to 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)
|
|
|
|
#ifndef BOOST_MATH_TOOLS_UTILITY
|
|
#define BOOST_MATH_TOOLS_UTILITY
|
|
|
|
#include <boost/math/tools/config.hpp>
|
|
|
|
#ifndef BOOST_MATH_HAS_GPU_SUPPORT
|
|
|
|
#include <utility>
|
|
|
|
namespace boost {
|
|
namespace math {
|
|
|
|
template <typename T>
|
|
constexpr T min BOOST_MATH_PREVENT_MACRO_SUBSTITUTION (const T& a, const T& b)
|
|
{
|
|
return (std::min)(a, b);
|
|
}
|
|
|
|
template <typename T>
|
|
constexpr T max BOOST_MATH_PREVENT_MACRO_SUBSTITUTION (const T& a, const T& b)
|
|
{
|
|
return (std::max)(a, b);
|
|
}
|
|
|
|
template <typename T>
|
|
void swap BOOST_MATH_PREVENT_MACRO_SUBSTITUTION (T& a, T& b)
|
|
{
|
|
return (std::swap)(a, b);
|
|
}
|
|
|
|
} // namespace math
|
|
} // namespace boost
|
|
|
|
#else
|
|
|
|
namespace boost {
|
|
namespace math {
|
|
|
|
template <typename T>
|
|
BOOST_MATH_GPU_ENABLED constexpr T min BOOST_MATH_PREVENT_MACRO_SUBSTITUTION (const T& a, const T& b)
|
|
{
|
|
return a < b ? a : b;
|
|
}
|
|
|
|
template <typename T>
|
|
BOOST_MATH_GPU_ENABLED constexpr T max BOOST_MATH_PREVENT_MACRO_SUBSTITUTION (const T& a, const T& b)
|
|
{
|
|
return a > b ? a : b;
|
|
}
|
|
|
|
template <typename T>
|
|
BOOST_MATH_GPU_ENABLED constexpr void swap BOOST_MATH_PREVENT_MACRO_SUBSTITUTION (T& a, T& b)
|
|
{
|
|
T t(a);
|
|
a = b;
|
|
b = t;
|
|
}
|
|
|
|
} // namespace math
|
|
} // namespace boost
|
|
|
|
#endif // BOOST_MATH_HAS_GPU_SUPPORT
|
|
|
|
#endif // BOOST_MATH_TOOLS_UTILITY
|