Merge pull request #1045 from boostorg/ccmath_config

Update/improve ccmath configuration.
2026-01-19 04:22:09 +00:00 · 2023-11-05 11:30:50 +00:00
parent 8435aefd40 21230d698e
commit 11e2348372
12 changed files with 64 additions and 88 deletions
--- a/include/boost/math/ccmath/abs.hpp
+++ b/include/boost/math/ccmath/abs.hpp
@@ -8,20 +8,13 @@
 #ifndef BOOST_MATH_CCMATH_ABS
 #define BOOST_MATH_CCMATH_ABS

-#include <cmath>
-#include <type_traits>
-#include <limits>
-#include <boost/math/tools/is_constant_evaluated.hpp>
 #include <boost/math/tools/assert.hpp>
+#include <boost/math/ccmath/detail/config.hpp>
 #include <boost/math/ccmath/isnan.hpp>
 #include <boost/math/ccmath/isinf.hpp>

-#include <boost/math/tools/is_standalone.hpp>
-#ifndef BOOST_MATH_STANDALONE
-#include <boost/config.hpp>
-#ifdef BOOST_NO_CXX17_IF_CONSTEXPR
-#error "The header <boost/math/norms.hpp> can only be used in C++17 and later."
-#endif
+#ifdef BOOST_MATH_NO_CCMATH
+#error "The header <boost/math/abs.hpp> can only be used in C++17 and later."
 #endif

 namespace boost::math::ccmath {
--- a/include/boost/math/ccmath/detail/config.hpp
+++ b/include/boost/math/ccmath/detail/config.hpp
@@ -0,0 +1,34 @@
+//  (C) Copyright John Maddock 2023.
+//  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)
+//
+//  Core configuration for ccmath functions, basically will they work or not?
+
+#ifndef BOOST_MATH_CCMATH_DETAIL_CONFIG
+#define BOOST_MATH_CCMATH_DETAIL_CONFIG
+
+#include <cmath>
+#include <type_traits>
+#include <limits>
+#include <boost/math/tools/is_constant_evaluated.hpp>
+#include <boost/math/tools/is_standalone.hpp>
+
+#ifndef BOOST_MATH_STANDALONE
+#include <boost/config.hpp>
+#ifdef BOOST_NO_CXX17_IF_CONSTEXPR
+#  define BOOST_MATH_NO_CCMATH
+#endif
+#endif
+
+#ifndef _MSC_VER
+//
+// Don't check here for msvc as they didn't get std lib configuration macros at the same time as C++17 <type_traits>
+//
+#if (__cpp_lib_bool_constant < 201505L) && !defined(BOOST_MATH_NO_CCMATH)
+#  define BOOST_MATH_NO_CCMATH
+#endif
+#endif
+
+
+#endif
--- a/include/boost/math/ccmath/div.hpp
+++ b/include/boost/math/ccmath/div.hpp
@@ -6,18 +6,12 @@
 #ifndef BOOST_MATH_CCMATH_DIV_HPP
 #define BOOST_MATH_CCMATH_DIV_HPP

-#include <cmath>
-#include <cstdlib>
 #include <cinttypes>
 #include <cstdint>
-#include <type_traits>
+#include <boost/math/ccmath/detail/config.hpp>

-#include <boost/math/tools/is_standalone.hpp>
-#ifndef BOOST_MATH_STANDALONE
-#include <boost/config.hpp>
-#ifdef BOOST_NO_CXX17_IF_CONSTEXPR
-#error "The header <boost/math/norms.hpp> can only be used in C++17 and later."
-#endif
+#ifdef BOOST_MATH_NO_CCMATH
+#error "The header <boost/math/div.hpp> can only be used in C++17 and later."
 #endif

 namespace boost::math::ccmath {
--- a/include/boost/math/ccmath/fma.hpp
+++ b/include/boost/math/ccmath/fma.hpp
@@ -6,19 +6,12 @@
 #ifndef BOOST_MATH_CCMATH_FMA_HPP
 #define BOOST_MATH_CCMATH_FMA_HPP

-#include <cmath>
-#include <limits>
-#include <type_traits>
-#include <boost/math/tools/is_constant_evaluated.hpp>
+#include <boost/math/ccmath/detail/config.hpp>
 #include <boost/math/ccmath/isinf.hpp>
 #include <boost/math/ccmath/isnan.hpp>

-#include <boost/math/tools/is_standalone.hpp>
-#ifndef BOOST_MATH_STANDALONE
-#include <boost/config.hpp>
-#ifdef BOOST_NO_CXX17_IF_CONSTEXPR
-#error "The header <boost/math/norms.hpp> can only be used in C++17 and later."
-#endif
+#ifdef BOOST_MATH_NO_CCMATH
+#error "The header <boost/math/fma.hpp> can only be used in C++17 and later."
 #endif

 namespace boost::math::ccmath {
--- a/include/boost/math/ccmath/isinf.hpp
+++ b/include/boost/math/ccmath/isinf.hpp
@@ -6,18 +6,11 @@
 #ifndef BOOST_MATH_CCMATH_ISINF
 #define BOOST_MATH_CCMATH_ISINF

-#include <cmath>
-#include <limits>
-#include <type_traits>
-#include <boost/math/tools/is_constant_evaluated.hpp>
 #include <boost/math/special_functions/fpclassify.hpp>
+#include <boost/math/ccmath/detail/config.hpp>

-#include <boost/math/tools/is_standalone.hpp>
-#ifndef BOOST_MATH_STANDALONE
-#include <boost/config.hpp>
-#ifdef BOOST_NO_CXX17_IF_CONSTEXPR
-#error "The header <boost/math/norms.hpp> can only be used in C++17 and later."
-#endif
+#ifdef BOOST_MATH_NO_CCMATH
+#error "The header <boost/math/isinf.hpp> can only be used in C++17 and later."
 #endif

 namespace boost::math::ccmath {
--- a/include/boost/math/ccmath/isnan.hpp
+++ b/include/boost/math/ccmath/isnan.hpp
@@ -6,17 +6,11 @@
 #ifndef BOOST_MATH_CCMATH_ISNAN
 #define BOOST_MATH_CCMATH_ISNAN

-#include <cmath>
-#include <type_traits>
-#include <boost/math/tools/is_constant_evaluated.hpp>
 #include <boost/math/special_functions/fpclassify.hpp>
+#include <boost/math/ccmath/detail/config.hpp>

-#include <boost/math/tools/is_standalone.hpp>
-#ifndef BOOST_MATH_STANDALONE
-#include <boost/config.hpp>
-#ifdef BOOST_NO_CXX17_IF_CONSTEXPR
-#error "The header <boost/math/norms.hpp> can only be used in C++17 and later."
-#endif
+#ifdef BOOST_MATH_NO_CCMATH
+#error "The header <boost/math/isnan.hpp> can only be used in C++17 and later."
 #endif

 namespace boost::math::ccmath {
--- a/include/boost/math/ccmath/isnormal.hpp
+++ b/include/boost/math/ccmath/isnormal.hpp
@@ -6,20 +6,13 @@
 #ifndef BOOST_MATH_ISNORMAL_HPP
 #define BOOST_MATH_ISNORMAL_HPP

-#include <cmath>
-#include <limits>
-#include <type_traits>
-#include <boost/math/tools/is_constant_evaluated.hpp>
+#include <boost/math/ccmath/detail/config.hpp>
 #include <boost/math/ccmath/abs.hpp>
 #include <boost/math/ccmath/isinf.hpp>
 #include <boost/math/ccmath/isnan.hpp>

-#include <boost/math/tools/is_standalone.hpp>
-#ifndef BOOST_MATH_STANDALONE
-#include <boost/config.hpp>
-#ifdef BOOST_NO_CXX17_IF_CONSTEXPR
-#error "The header <boost/math/norms.hpp> can only be used in C++17 and later."
-#endif
+#ifdef BOOST_MATH_NO_CCMATH
+#error "The header <boost/math/abs.hpp> can only be used in C++17 and later."
 #endif

 namespace boost::math::ccmath {
--- a/include/boost/math/ccmath/ldexp.hpp
+++ b/include/boost/math/ccmath/ldexp.hpp
@@ -7,11 +7,8 @@
 #ifndef BOOST_MATH_CCMATH_LDEXP_HPP
 #define BOOST_MATH_CCMATH_LDEXP_HPP

-#include <cmath>
-#include <limits>
-#include <type_traits>
 #include <stdexcept>
-#include <boost/math/tools/is_constant_evaluated.hpp>
+#include <boost/math/ccmath/detail/config.hpp>
 #include <boost/math/ccmath/abs.hpp>
 #include <boost/math/ccmath/isinf.hpp>
 #include <boost/math/ccmath/isnan.hpp>
--- a/include/boost/math/ccmath/round.hpp
+++ b/include/boost/math/ccmath/round.hpp
@@ -6,21 +6,15 @@
 #ifndef BOOST_MATH_CCMATH_ROUND_HPP
 #define BOOST_MATH_CCMATH_ROUND_HPP

-#include <cmath>
-#include <type_traits>
 #include <stdexcept>
-#include <boost/math/tools/is_constant_evaluated.hpp>
+#include <boost/math/ccmath/detail/config.hpp>
 #include <boost/math/ccmath/abs.hpp>
 #include <boost/math/ccmath/isinf.hpp>
 #include <boost/math/ccmath/isnan.hpp>
 #include <boost/math/ccmath/modf.hpp>

-#include <boost/math/tools/is_standalone.hpp>
-#ifndef BOOST_MATH_STANDALONE
-#include <boost/config.hpp>
-#ifdef BOOST_NO_CXX17_IF_CONSTEXPR
-#error "The header <boost/math/norms.hpp> can only be used in C++17 and later."
-#endif
+#ifdef BOOST_MATH_NO_CCMATH
+#error "The header <boost/math/round.hpp> can only be used in C++17 and later."
 #endif

 namespace boost::math::ccmath {
--- a/include/boost/math/ccmath/signbit.hpp
+++ b/include/boost/math/ccmath/signbit.hpp
@@ -6,22 +6,15 @@
 #ifndef BOOST_MATH_CCMATH_SIGNBIT_HPP
 #define BOOST_MATH_CCMATH_SIGNBIT_HPP

-#include <cmath>
 #include <cstdint>
-#include <limits>
-#include <type_traits>
-#include <boost/math/tools/is_constant_evaluated.hpp>
 #include <boost/math/tools/assert.hpp>
+#include <boost/math/ccmath/detail/config.hpp>
 #include <boost/math/special_functions/detail/fp_traits.hpp>
 #include <boost/math/ccmath/isnan.hpp>
 #include <boost/math/ccmath/abs.hpp>

-#include <boost/math/tools/is_standalone.hpp>
-#ifndef BOOST_MATH_STANDALONE
-#include <boost/config.hpp>
-#ifdef BOOST_NO_CXX17_IF_CONSTEXPR
-#error "The header <boost/math/norms.hpp> can only be used in C++17 and later."
-#endif
+#ifdef BOOST_MATH_NO_CCMATH
+#error "The header <boost/math/signbit.hpp> can only be used in C++17 and later."
 #endif

 #ifdef __has_include
--- a/include/boost/math/special_functions/round.hpp
+++ b/include/boost/math/special_functions/round.hpp
@@ -12,6 +12,7 @@
 #endif

 #include <boost/math/tools/config.hpp>
+#include <boost/math/ccmath/detail/config.hpp>
 #include <boost/math/policies/error_handling.hpp>
 #include <boost/math/special_functions/math_fwd.hpp>
 #include <boost/math/special_functions/fpclassify.hpp>
@@ -19,11 +20,9 @@
 #include <limits>
 #include <cmath>

-#ifndef BOOST_NO_CXX17_IF_CONSTEXPR
+#if !defined(BOOST_MATH_NO_CCMATH) && !defined(BOOST_MATH_NO_CONSTEXPR_DETECTION)
 #include <boost/math/ccmath/ldexp.hpp>
-#  if !defined(BOOST_MATH_NO_CONSTEXPR_DETECTION)
 #    define BOOST_MATH_HAS_CONSTEXPR_LDEXP
-#  endif
 #endif

 namespace boost{ namespace math{
--- a/include/boost/math/special_functions/trunc.hpp
+++ b/include/boost/math/special_functions/trunc.hpp
@@ -14,15 +14,14 @@
 #include <type_traits>
 #include <boost/math/special_functions/math_fwd.hpp>
 #include <boost/math/tools/config.hpp>
+#include <boost/math/ccmath/detail/config.hpp>
 #include <boost/math/policies/error_handling.hpp>
 #include <boost/math/special_functions/fpclassify.hpp>
 #include <boost/math/tools/is_constant_evaluated.hpp>

-#ifndef BOOST_NO_CXX17_IF_CONSTEXPR
-#  if !defined(BOOST_MATH_NO_CONSTEXPR_DETECTION)
-#    include <boost/math/ccmath/ldexp.hpp>
+#if !defined(BOOST_MATH_NO_CCMATH) && !defined(BOOST_MATH_NO_CONSTEXPR_DETECTION)
+#include <boost/math/ccmath/ldexp.hpp>
 #    define BOOST_MATH_HAS_CONSTEXPR_LDEXP
-#  endif
 #endif

 namespace boost{ namespace math{ namespace detail{