head 1.1; branch 1.1.1; access; symbols netbsd-11-0-RC4:1.1.1.2 netbsd-11-0-RC3:1.1.1.2 netbsd-11-0-RC2:1.1.1.2 netbsd-11-0-RC1:1.1.1.2 gcc-14-3-0:1.1.1.3 perseant-exfatfs-base-20250801:1.1.1.2 netbsd-11:1.1.1.2.0.4 netbsd-11-base:1.1.1.2 gcc-12-5-0:1.1.1.2 netbsd-10-1-RELEASE:1.1.1.1 perseant-exfatfs-base-20240630:1.1.1.2 gcc-12-4-0:1.1.1.2 perseant-exfatfs:1.1.1.2.0.2 perseant-exfatfs-base:1.1.1.2 netbsd-10-0-RELEASE:1.1.1.1 netbsd-10-0-RC6:1.1.1.1 netbsd-10-0-RC5:1.1.1.1 netbsd-10-0-RC4:1.1.1.1 netbsd-10-0-RC3:1.1.1.1 netbsd-10-0-RC2:1.1.1.1 netbsd-10-0-RC1:1.1.1.1 gcc-12-3-0:1.1.1.2 gcc-10-5-0:1.1.1.1 netbsd-10:1.1.1.1.0.6 netbsd-10-base:1.1.1.1 gcc-10-4-0:1.1.1.1 cjep_sun2x-base1:1.1.1.1 cjep_sun2x:1.1.1.1.0.4 cjep_sun2x-base:1.1.1.1 cjep_staticlib_x-base1:1.1.1.1 cjep_staticlib_x:1.1.1.1.0.2 cjep_staticlib_x-base:1.1.1.1 gcc-10-3-0:1.1.1.1 FSF:1.1.1; locks; strict; comment @# @; 1.1 date 2021.04.10.22.10.04; author mrg; state Exp; branches 1.1.1.1; next ; commitid eC4g0MRpqTvEkNOC; 1.1.1.1 date 2021.04.10.22.10.04; author mrg; state Exp; branches; next 1.1.1.2; commitid eC4g0MRpqTvEkNOC; 1.1.1.2 date 2023.07.30.05.21.20; author mrg; state Exp; branches; next 1.1.1.3; commitid tk6nV4mbc9nVEMyE; 1.1.1.3 date 2025.09.13.23.45.48; author mrg; state Exp; branches; next ; commitid KwhwN4krNWa6XBaG; desc @@ 1.1 log @Initial revision @ text @// -*- C++ -*- // Copyright (C) 2019-2020 Free Software Foundation, Inc. // // This file is part of the GNU ISO C++ Library. This library is free // software; you can redistribute it and/or modify it under the // terms of the GNU General Public License as published by the // Free Software Foundation; either version 3, or (at your option) // any later version. // This library is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // Under Section 7 of GPL version 3, you are granted additional // permissions described in the GCC Runtime Library Exception, version // 3.1, as published by the Free Software Foundation. // You should have received a copy of the GNU General Public License and // a copy of the GCC Runtime Library Exception along with this program; // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see // . /** @@file include/numbers * This is a Standard C++ Library header. */ #ifndef _GLIBCXX_NUMBERS #define _GLIBCXX_NUMBERS 1 #pragma GCC system_header #if __cplusplus > 201703L #include namespace std _GLIBCXX_VISIBILITY(default) { _GLIBCXX_BEGIN_NAMESPACE_VERSION /** @@defgroup math_constants Mathematical constants * @@ingroup numerics * @@{ */ /// Namespace for mathematical constants namespace numbers { #define __cpp_lib_math_constants 201907L /// @@cond undoc template using _Enable_if_floating = enable_if_t, _Tp>; /// @@endcond /// e template inline constexpr _Tp e_v = _Enable_if_floating<_Tp>(2.718281828459045235360287471352662498L); /// log_2 e template inline constexpr _Tp log2e_v = _Enable_if_floating<_Tp>(1.442695040888963407359924681001892137L); /// log_10 e template inline constexpr _Tp log10e_v = _Enable_if_floating<_Tp>(0.434294481903251827651128918916605082L); /// pi template inline constexpr _Tp pi_v = _Enable_if_floating<_Tp>(3.141592653589793238462643383279502884L); /// 1/pi template inline constexpr _Tp inv_pi_v = _Enable_if_floating<_Tp>(0.318309886183790671537767526745028724L); /// 1/sqrt(pi) template inline constexpr _Tp inv_sqrtpi_v = _Enable_if_floating<_Tp>(0.564189583547756286948079451560772586L); /// log_e 2 template inline constexpr _Tp ln2_v = _Enable_if_floating<_Tp>(0.693147180559945309417232121458176568L); /// log_e 10 template inline constexpr _Tp ln10_v = _Enable_if_floating<_Tp>(2.302585092994045684017991454684364208L); /// sqrt(2) template inline constexpr _Tp sqrt2_v = _Enable_if_floating<_Tp>(1.414213562373095048801688724209698079L); /// sqrt(3) template inline constexpr _Tp sqrt3_v = _Enable_if_floating<_Tp>(1.732050807568877293527446341505872367L); /// 1/sqrt(3) template inline constexpr _Tp inv_sqrt3_v = _Enable_if_floating<_Tp>(0.577350269189625764509148780501957456L); /// The Euler-Mascheroni constant template inline constexpr _Tp egamma_v = _Enable_if_floating<_Tp>(0.577215664901532860606512090082402431L); /// The golden ratio, (1+sqrt(5))/2 template inline constexpr _Tp phi_v = _Enable_if_floating<_Tp>(1.618033988749894848204586834365638118L); inline constexpr double e = e_v; inline constexpr double log2e = log2e_v; inline constexpr double log10e = log10e_v; inline constexpr double pi = pi_v; inline constexpr double inv_pi = inv_pi_v; inline constexpr double inv_sqrtpi = inv_sqrtpi_v; inline constexpr double ln2 = ln2_v; inline constexpr double ln10 = ln10_v; inline constexpr double sqrt2 = sqrt2_v; inline constexpr double sqrt3 = sqrt3_v; inline constexpr double inv_sqrt3 = inv_sqrt3_v; inline constexpr double egamma = egamma_v; inline constexpr double phi = phi_v; #if !defined(__STRICT_ANSI__) && defined(_GLIBCXX_USE_FLOAT128) template<> inline constexpr __float128 e_v<__float128> = 2.718281828459045235360287471352662498Q; /// log_2 e template<> inline constexpr __float128 log2e_v<__float128> = 1.442695040888963407359924681001892137Q; /// log_10 e template<> inline constexpr __float128 log10e_v<__float128> = 0.434294481903251827651128918916605082Q; /// pi template<> inline constexpr __float128 pi_v<__float128> = 3.141592653589793238462643383279502884Q; /// 1/pi template<> inline constexpr __float128 inv_pi_v<__float128> = 0.318309886183790671537767526745028724Q; /// 1/sqrt(pi) template<> inline constexpr __float128 inv_sqrtpi_v<__float128> = 0.564189583547756286948079451560772586Q; /// log_e 2 template<> inline constexpr __float128 ln2_v<__float128> = 0.693147180559945309417232121458176568Q; /// log_e 10 template<> inline constexpr __float128 ln10_v<__float128> = 2.302585092994045684017991454684364208Q; /// sqrt(2) template<> inline constexpr __float128 sqrt2_v<__float128> = 1.414213562373095048801688724209698079Q; /// sqrt(3) template<> inline constexpr __float128 sqrt3_v<__float128> = 1.732050807568877293527446341505872367Q; /// 1/sqrt(3) template<> inline constexpr __float128 inv_sqrt3_v<__float128> = 0.577350269189625764509148780501957456Q; /// The Euler-Mascheroni constant template<> inline constexpr __float128 egamma_v<__float128> = 0.577215664901532860606512090082402431Q; /// The golden ratio, (1+sqrt(5))/2 template<> inline constexpr __float128 phi_v<__float128> = 1.618033988749894848204586834365638118Q; #endif // USE_FLOAT128 } // namespace numbers /// @@} _GLIBCXX_END_NAMESPACE_VERSION } // namespace std #endif // C++20 #endif // _GLIBCXX_NUMBERS @ 1.1.1.1 log @initial import of GCC 10.3.0. main changes include: caveats: - ABI issue between c++14 and c++17 fixed - profile mode is removed from libstdc++ - -fno-common is now the default new features: - new flags -fallocation-dce, -fprofile-partial-training, -fprofile-reproducible, -fprofile-prefix-path, and -fanalyzer - many new compile and link time optimisations - enhanced drive optimisations - openacc 2.6 support - openmp 5.0 features - new warnings: -Wstring-compare and -Wzero-length-bounds - extended warnings: -Warray-bounds, -Wformat-overflow, -Wrestrict, -Wreturn-local-addr, -Wstringop-overflow, -Warith-conversion, -Wmismatched-tags, and -Wredundant-tags - some likely C2X features implemented - more C++20 implemented - many new arm & intel CPUs known hundreds of reported bugs are fixed. full list of changes can be found at: https://gcc.gnu.org/gcc-10/changes.html @ text @@ 1.1.1.2 log @initial import of GCC 12.3.0. major changes in GCC 11 included: - The default mode for C++ is now -std=gnu++17 instead of -std=gnu++14. - When building GCC itself, the host compiler must now support C++11, rather than C++98. - Some short options of the gcov tool have been renamed: -i to -j and -j to -H. - ThreadSanitizer improvements. - Introduce Hardware-assisted AddressSanitizer support. - For targets that produce DWARF debugging information GCC now defaults to DWARF version 5. This can produce up to 25% more compact debug information compared to earlier versions. - Many optimisations. - The existing malloc attribute has been extended so that it can be used to identify allocator/deallocator API pairs. A pair of new -Wmismatched-dealloc and -Wmismatched-new-delete warnings are added. - Other new warnings: -Wsizeof-array-div, enabled by -Wall, warns about divisions of two sizeof operators when the first one is applied to an array and the divisor does not equal the size of the array element. -Wstringop-overread, enabled by default, warns about calls to string functions reading past the end of the arrays passed to them as arguments. -Wtsan, enabled by default, warns about unsupported features in ThreadSanitizer (currently std::atomic_thread_fence). - Enchanced warnings: -Wfree-nonheap-object detects many more instances of calls to deallocation functions with pointers not returned from a dynamic memory allocation function. -Wmaybe-uninitialized diagnoses passing pointers or references to uninitialized memory to functions taking const-qualified arguments. -Wuninitialized detects reads from uninitialized dynamically allocated memory. -Warray-parameter warns about functions with inconsistent array forms. -Wvla-parameter warns about functions with inconsistent VLA forms. - Several new features from the upcoming C2X revision of the ISO C standard are supported with -std=c2x and -std=gnu2x. - Several C++20 features have been implemented. - The C++ front end has experimental support for some of the upcoming C++23 draft. - Several new C++ warnings. - Enhanced Arm, AArch64, x86, and RISC-V CPU support. - The implementation of how program state is tracked within -fanalyzer has been completely rewritten with many enhancements. see https://gcc.gnu.org/gcc-11/changes.html for a full list. major changes in GCC 12 include: - An ABI incompatibility between C and C++ when passing or returning by value certain aggregates containing zero width bit-fields has been discovered on various targets. x86-64, ARM and AArch64 will always ignore them (so there is a C ABI incompatibility between GCC 11 and earlier with GCC 12 or later), PowerPC64 ELFv2 always take them into account (so there is a C++ ABI incompatibility, GCC 4.4 and earlier compatible with GCC 12 or later, incompatible with GCC 4.5 through GCC 11). RISC-V has changed the handling of these already starting with GCC 10. As the ABI requires, MIPS takes them into account handling function return values so there is a C++ ABI incompatibility with GCC 4.5 through 11. - STABS: Support for emitting the STABS debugging format is deprecated and will be removed in the next release. All ports now default to emit DWARF (version 2 or later) debugging info or are obsoleted. - Vectorization is enabled at -O2 which is now equivalent to the original -O2 -ftree-vectorize -fvect-cost-model=very-cheap. - GCC now supports the ShadowCallStack sanitizer. - Support for __builtin_shufflevector compatible with the clang language extension was added. - Support for attribute unavailable was added. - Support for __builtin_dynamic_object_size compatible with the clang language extension was added. - New warnings: -Wbidi-chars warns about potentially misleading UTF-8 bidirectional control characters. -Warray-compare warns about comparisons between two operands of array type. - Some new features from the upcoming C2X revision of the ISO C standard are supported with -std=c2x and -std=gnu2x. - Several C++23 features have been implemented. - Many C++ enhancements across warnings and -f options. see https://gcc.gnu.org/gcc-12/changes.html for a full list. @ text @d3 1 a3 1 // Copyright (C) 2019-2022 Free Software Foundation, Inc. @ 1.1.1.3 log @initial import of GCC 14.3.0. major changes in GCC 13: - improved sanitizer - zstd debug info compression - LTO improvements - SARIF based diagnostic support - new warnings: -Wxor-used-as-pow, -Wenum-int-mismatch, -Wself-move, -Wdangling-reference - many new -Wanalyzer* specific warnings - enhanced warnings: -Wpessimizing-move, -Wredundant-move - new attributes to mark file descriptors, c++23 "assume" - several C23 features added - several C++23 features added - many new features for Arm, x86, RISC-V major changes in GCC 14: - more strict C99 or newer support - ia64* marked deprecated (but seemingly still in GCC 15.) - several new hardening features - support for "hardbool", which can have user supplied values of true/false - explicit support for stack scrubbing upon function exit - better auto-vectorisation support - added clang-compatible __has_feature and __has_extension - more C23, including -std=c23 - several C++26 features added - better diagnostics in C++ templates - new warnings: -Wnrvo, Welaborated-enum-base - many new features for Arm, x86, RISC-V - possible ABI breaking change for SPARC64 and small structures with arrays of floats. @ text @d3 1 a3 1 // Copyright (C) 2019-2024 Free Software Foundation, Inc. d34 1 a34 4 #define __glibcxx_want_math_constants #include #ifdef __cpp_lib_math_constants // C++ >= 20 d50 1 d52 1 a52 1 /// @@cond undocumented d136 34 a169 85 #define __glibcxx_numbers(TYPE, SUFFIX) \ /* e */ \ template<> \ inline constexpr TYPE e_v \ = 2.718281828459045235360287471352662498##SUFFIX; \ \ /* log_2 e */ \ template<> \ inline constexpr TYPE log2e_v \ = 1.442695040888963407359924681001892137##SUFFIX; \ \ /* log_10 e */ \ template<> \ inline constexpr TYPE log10e_v \ = 0.434294481903251827651128918916605082##SUFFIX; \ \ /* pi */ \ template<> \ inline constexpr TYPE pi_v \ = 3.141592653589793238462643383279502884##SUFFIX; \ \ /* 1/pi */ \ template<> \ inline constexpr TYPE inv_pi_v \ = 0.318309886183790671537767526745028724##SUFFIX; \ \ /* 1/sqrt(pi) */ \ template<> \ inline constexpr TYPE inv_sqrtpi_v \ = 0.564189583547756286948079451560772586##SUFFIX; \ \ /* log_e 2 */ \ template<> \ inline constexpr TYPE ln2_v \ = 0.693147180559945309417232121458176568##SUFFIX; \ \ /* log_e 10 */ \ template<> \ inline constexpr TYPE ln10_v \ = 2.302585092994045684017991454684364208##SUFFIX; \ \ /* sqrt(2) */ \ template<> \ inline constexpr TYPE sqrt2_v \ = 1.414213562373095048801688724209698079##SUFFIX; \ \ /* sqrt(3) */ \ template<> \ inline constexpr TYPE sqrt3_v \ = 1.732050807568877293527446341505872367##SUFFIX; \ \ /* 1/sqrt(3) */ \ template<> \ inline constexpr TYPE inv_sqrt3_v \ = 0.577350269189625764509148780501957456##SUFFIX; \ \ /* The Euler-Mascheroni constant */ \ template<> \ inline constexpr TYPE egamma_v \ = 0.577215664901532860606512090082402431##SUFFIX; \ \ /* The golden ratio, (1+sqrt(5))/2 */ \ template<> \ inline constexpr TYPE phi_v \ = 1.618033988749894848204586834365638118##SUFFIX #ifdef __STDCPP_FLOAT16_T__ __glibcxx_numbers (_Float16, F16); #endif #ifdef __STDCPP_FLOAT32_T__ __glibcxx_numbers (_Float32, F32); #endif #ifdef __STDCPP_FLOAT64_T__ __glibcxx_numbers (_Float64, F64); #endif #ifdef __STDCPP_FLOAT128_T__ __glibcxx_numbers (_Float128, F128); #endif #ifdef __STDCPP_BFLOAT128_T__ __glibcxx_numbers (__gnu_cxx::__bfloat16_t, BF16); #endif d171 29 a199 2 #if !defined(__STRICT_ANSI__) && defined(_GLIBCXX_USE_FLOAT128) __glibcxx_numbers (__float128, Q); a201 2 #undef __glibcxx_numbers d207 1 a207 1 #endif // __cpp_lib_math_constants @