| /****************************************************************************** |
| * Copyright (c) 2020, NVIDIA CORPORATION. All rights reserved. |
| * |
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| * 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. |
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| * derived from this software without specific prior written permission. |
| * |
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| ******************************************************************************/ |
| |
| /*! \file |
| * \brief Detect the version of the C++ standard used by the compiler. |
| */ |
| |
| #pragma once |
| |
| #include <cuda/__cccl_config> |
| |
| #if defined(_CCCL_IMPLICIT_SYSTEM_HEADER_GCC) |
| # pragma GCC system_header |
| #elif defined(_CCCL_IMPLICIT_SYSTEM_HEADER_CLANG) |
| # pragma clang system_header |
| #elif defined(_CCCL_IMPLICIT_SYSTEM_HEADER_MSVC) |
| # pragma system_header |
| #endif // no system header |
| |
| #include <cub/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| // Ignore all deprecated C++ dialects and outdated compilers.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 C++03 and outdated |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_COMPILER 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 |
| |
