| // Ceres Solver - A fast non-linear least squares minimizer |
| // Copyright 2024 Google Inc. All rights reserved. |
| // http://ceres-solver.org/ |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are met: |
| // |
| // * Redistributions of source code must retain the above copyright notice, |
| // this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above copyright notice, |
| // this list of conditions and the following disclaimer in the documentation |
| // and/or other materials provided with the distribution. |
| // * Neither the name of Google Inc. nor the names of its contributors may be |
| // used to endorse or promote products derived from this software without |
| // specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| // ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
| // LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| // CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| // SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| // CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| // POSSIBILITY OF SUCH DAMAGE. |
| // |
| // Author: keir@google.com (Keir Mierle) |
| |
| #ifndef CERES_PUBLIC_INTERNAL_PORT_H_ |
| #define CERES_PUBLIC_INTERNAL_PORT_H_ |
| |
| #include <cmath> // Necessary for __cpp_lib_math_special_functions feature test |
| |
| // A macro to mark a function/variable/class as deprecated. |
| // We use compiler specific attributes rather than the c++ |
| // attribute because they do not mix well with each other. |
| #if defined(_MSC_VER) |
| #define CERES_DEPRECATED_WITH_MSG(message) __declspec(deprecated(message)) |
| #elif defined(__GNUC__) |
| #define CERES_DEPRECATED_WITH_MSG(message) __attribute__((deprecated(message))) |
| #else |
| // In the worst case fall back to c++ attribute. |
| #define CERES_DEPRECATED_WITH_MSG(message) [[deprecated(message)]] |
| #endif |
| |
| // Indicates whether C++20 is currently active |
| #ifndef CERES_HAS_CPP20 |
| #if __cplusplus >= 202002L || (defined(_MSVC_LANG) && _MSVC_LANG >= 202002L) |
| #define CERES_HAS_CPP20 |
| #endif // __cplusplus >= 202002L || (defined(_MSVC_LANG) && _MSVC_LANG >= |
| // 202002L) |
| #endif // !defined(CERES_HAS_CPP20) |
| |
| // Prevents symbols from being substituted by the corresponding macro definition |
| // under the same name. For instance, min and max are defined as macros on |
| // Windows (unless NOMINMAX is defined) which causes compilation errors when |
| // defining or referencing symbols under the same name. |
| // |
| // To be robust in all cases particularly when NOMINMAX cannot be used, use this |
| // macro to annotate min/max declarations/definitions. Examples: |
| // |
| // int max CERES_PREVENT_MACRO_SUBSTITUTION(); |
| // min CERES_PREVENT_MACRO_SUBSTITUTION(a, b); |
| // max CERES_PREVENT_MACRO_SUBSTITUTION(a, b); |
| // |
| // NOTE: In case the symbols for which the substitution must be prevented are |
| // used within another macro, the substitution must be inhibited using parens as |
| // |
| // (std::numerical_limits<double>::max)() |
| // |
| // since the helper macro will not work here. Do not use this technique in |
| // general case, because it will prevent argument-dependent lookup (ADL). |
| // |
| #define CERES_PREVENT_MACRO_SUBSTITUTION // Yes, it's empty |
| |
| // CERES_DISABLE_DEPRECATED_WARNING and CERES_RESTORE_DEPRECATED_WARNING allow |
| // to temporarily disable deprecation warnings |
| #if defined(_MSC_VER) |
| #define CERES_DISABLE_DEPRECATED_WARNING \ |
| _Pragma("warning(push)") _Pragma("warning(disable : 4996)") |
| #define CERES_RESTORE_DEPRECATED_WARNING _Pragma("warning(pop)") |
| #else // defined(_MSC_VER) |
| #define CERES_DISABLE_DEPRECATED_WARNING |
| #define CERES_RESTORE_DEPRECATED_WARNING |
| #endif // defined(_MSC_VER) |
| |
| #if defined(__cpp_lib_math_special_functions) && \ |
| ((__cpp_lib_math_special_functions >= 201603L) || \ |
| defined(__STDCPP_MATH_SPEC_FUNCS__) && \ |
| (__STDCPP_MATH_SPEC_FUNCS__ >= 201003L)) |
| // If defined, indicates whether C++17 Bessel functions (of the first kind) are |
| // available. Some standard library implementations, such as libc++ (Android |
| // NDK, Apple, Clang) do not yet provide these functions. Implementations that |
| // do not support C++17, but support ISO 29124:2010, provide the functions if |
| // __STDCPP_MATH_SPEC_FUNCS__ is defined by the implementation to a value at |
| // least 201003L and if the user defines __STDCPP_WANT_MATH_SPEC_FUNCS__ before |
| // including any standard library headers. Standard library Bessel functions are |
| // preferred over any other implementation. |
| #define CERES_HAS_CPP17_BESSEL_FUNCTIONS |
| #elif defined(_SVID_SOURCE) || defined(_BSD_SOURCE) || defined(_XOPEN_SOURCE) |
| // If defined, indicates that j0, j1, and jn from <math.h> are available. |
| #define CERES_HAS_POSIX_BESSEL_FUNCTIONS |
| #endif |
| |
| #endif // CERES_PUBLIC_INTERNAL_PORT_H_ |
