| /****************************************************************************** | |
| * Copyright (c) 2020, NVIDIA CORPORATION. All rights reserved. | |
| * | |
| * 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 the NVIDIA CORPORATION nor the | |
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| * derived from this software without specific prior written permission. | |
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| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
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| * | |
| ******************************************************************************/ | |
| /*! \file | |
| * \brief Detect the version of the C++ standard used by the compiler. | |
| */ | |
| #pragma once | |
| #include "util_compiler.cuh" | |
| // Deprecation warnings may be silenced by defining the following macros. These | |
| // may be combined. | |
| // - CUB_IGNORE_DEPRECATED_CPP_DIALECT: | |
| // Ignore all deprecated C++ dialects and outdated compilers. | |
| // - CUB_IGNORE_DEPRECATED_CPP_11: | |
| // Ignore deprecation warnings when compiling with C++11. C++03 and outdated | |
| // compilers will still issue warnings. | |
| // - CUB_IGNORE_DEPRECATED_COMPILER | |
| // Ignore deprecation warnings when using deprecated compilers. Compiling | |
| // with C++03 and C++11 will still issue warnings. | |
| // Check for the thrust opt-outs as well: | |
| #if !defined(CUB_IGNORE_DEPRECATED_CPP_DIALECT) && \ | |
| defined(THRUST_IGNORE_DEPRECATED_CPP_DIALECT) | |
| # define CUB_IGNORE_DEPRECATED_CPP_DIALECT | |
| #endif | |
| #if !defined(CUB_IGNORE_DEPRECATED_CPP_11) && \ | |
| defined(THRUST_IGNORE_DEPRECATED_CPP_11) | |
| # define CUB_IGNORE_DEPRECATED_CPP_11 | |
| #endif | |
| #if !defined(CUB_IGNORE_DEPRECATED_COMPILER) && \ | |
| defined(THRUST_IGNORE_DEPRECATED_COMPILER) | |
| # define CUB_IGNORE_DEPRECATED_COMPILER | |
| #endif | |
| #ifdef CUB_IGNORE_DEPRECATED_CPP_DIALECT | |
| # define CUB_IGNORE_DEPRECATED_CPP_11 | |
| # define CUB_IGNORE_DEPRECATED_COMPILER | |
| #endif | |
| // Define this to override the built-in detection. | |
| #ifndef CUB_CPP_DIALECT | |
| // MSVC does not define __cplusplus correctly. _MSVC_LANG is used instead. | |
| // This macro is only defined in MSVC 2015U3+. | |
| # ifdef _MSVC_LANG // Do not replace with CUB_HOST_COMPILER test (see above) | |
| // MSVC2015 reports C++14 but lacks extended constexpr support. Treat as C++11. | |
| # if CUB_MSVC_VERSION < 1910 && _MSVC_LANG > 201103L /* MSVC < 2017 && CPP > 2011 */ | |
| # define CUB_CPLUSPLUS 201103L /* Fix to 2011 */ | |
| # else | |
| # define CUB_CPLUSPLUS _MSVC_LANG /* We'll trust this for now. */ | |
| # endif // MSVC 2015 C++14 fix | |
| # else | |
| # define CUB_CPLUSPLUS __cplusplus | |
| # endif | |
| // Detect current dialect: | |
| # if CUB_CPLUSPLUS < 201103L | |
| # define CUB_CPP_DIALECT 2003 | |
| # elif CUB_CPLUSPLUS < 201402L | |
| # define CUB_CPP_DIALECT 2011 | |
| # elif CUB_CPLUSPLUS < 201703L | |
| # define CUB_CPP_DIALECT 2014 | |
| # elif CUB_CPLUSPLUS == 201703L | |
| # define CUB_CPP_DIALECT 2017 | |
| # elif CUB_CPLUSPLUS > 201703L // unknown, but is higher than 2017. | |
| # define CUB_CPP_DIALECT 2020 | |
| # endif | |
| # undef CUB_CPLUSPLUS // cleanup | |
| #endif // !CUB_CPP_DIALECT | |
| // Define CUB_COMPILER_DEPRECATION macro: | |
| #if CUB_HOST_COMPILER == CUB_HOST_COMPILER_MSVC | |
| # define CUB_COMP_DEPR_IMPL(msg) \ | |
| __pragma(message(__FILE__ ":" CUB_COMP_DEPR_IMPL0(__LINE__) ": warning: " #msg)) | |
| # define CUB_COMP_DEPR_IMPL0(x) CUB_COMP_DEPR_IMPL1(x) | |
| # define CUB_COMP_DEPR_IMPL1(x) #x | |
| #else // clang / gcc: | |
| # define CUB_COMP_DEPR_IMPL(msg) CUB_COMP_DEPR_IMPL0(GCC warning #msg) | |
| # define CUB_COMP_DEPR_IMPL0(expr) _Pragma(#expr) | |
| # define CUB_COMP_DEPR_IMPL1 /* intentionally blank */ | |
| #endif | |
| #define CUB_COMPILER_DEPRECATION(REQ) \ | |
| CUB_COMP_DEPR_IMPL(CUB requires at least REQ. Define CUB_IGNORE_DEPRECATED_CPP_DIALECT to suppress this message.) | |
| #define CUB_COMPILER_DEPRECATION_SOFT(REQ, CUR) \ | |
| CUB_COMP_DEPR_IMPL(CUB requires at least REQ. CUR is deprecated but still supported. CUR support will be removed in a future release. Define CUB_IGNORE_DEPRECATED_CPP_DIALECT to suppress this message.) | |
| #ifndef CUB_IGNORE_DEPRECATED_COMPILER | |
| // Compiler checks: | |
| # if CUB_HOST_COMPILER == CUB_HOST_COMPILER_GCC && CUB_GCC_VERSION < 50000 | |
| CUB_COMPILER_DEPRECATION(GCC 5.0); | |
| # elif CUB_HOST_COMPILER == CUB_HOST_COMPILER_CLANG && CUB_CLANG_VERSION < 70000 | |
| CUB_COMPILER_DEPRECATION(Clang 7.0); | |
| # elif CUB_HOST_COMPILER == CUB_HOST_COMPILER_MSVC && CUB_MSVC_VERSION < 1910 | |
| // <2017. Hard upgrade message: | |
| CUB_COMPILER_DEPRECATION(MSVC 2019 (19.20/16.0/14.20)); | |
| # elif CUB_HOST_COMPILER == CUB_HOST_COMPILER_MSVC && CUB_MSVC_VERSION < 1920 | |
| // >=2017, <2019. Soft deprecation message: | |
| CUB_COMPILER_DEPRECATION_SOFT(MSVC 2019 (19.20/16.0/14.20), MSVC 2017); | |
| # endif | |
| #endif // CUB_IGNORE_DEPRECATED_COMPILER | |
| #ifndef CUB_IGNORE_DEPRECATED_DIALECT | |
| // Dialect checks: | |
| # if CUB_CPP_DIALECT < 2011 | |
| // <C++11. Hard upgrade message: | |
| CUB_COMPILER_DEPRECATION(C++14); | |
| # elif CUB_CPP_DIALECT == 2011 && !defined(CUB_IGNORE_DEPRECATED_CPP_11) | |
| // =C++11. Soft upgrade message: | |
| CUB_COMPILER_DEPRECATION_SOFT(C++14, C++11); | |
| # endif | |
| #endif // CUB_IGNORE_DEPRECATED_DIALECT | |
| #undef CUB_COMPILER_DEPRECATION_SOFT | |
| #undef CUB_COMPILER_DEPRECATION | |
| #undef CUB_COMP_DEPR_IMPL | |
| #undef CUB_COMP_DEPR_IMPL0 | |
| #undef CUB_COMP_DEPR_IMPL1 | |