| // (C) Copyright Matt Borland 2022. |
| // 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) |
| // |
| // Macros that substitute for STL concepts or typename depending on availability of <concepts> |
| |
| #ifndef BOOST_MATH_TOOLS_CONCEPTS_HPP |
| #define BOOST_MATH_TOOLS_CONCEPTS_HPP |
| |
| // LLVM clang supports concepts but apple's clang does not fully support at version 13 |
| // See: https://en.cppreference.com/w/cpp/compiler_support/20 |
| #if (__cplusplus > 202000L || _MSVC_LANG > 202000L) |
| # if __has_include(<concepts>) && (!defined(__APPLE__) || (defined(__APPLE__) && defined(__clang__) && __clang__ > 13)) |
| # include <concepts> |
| # define BOOST_MATH_FLOATING_POINT_TYPE std::floating_point |
| # else |
| # define BOOST_MATH_FLOATING_POINT_TYPE typename |
| # endif |
| #else |
| # define BOOST_MATH_FLOATING_POINT_TYPE typename |
| #endif |
| |
| #endif // BOOST_MATH_TOOLS_CONCEPTS_HPP |
