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godotengine
GitHub Repository: godotengine/godot
 Path: blob/master/thirdparty/openxr/src/common/stdfs_conditions.h
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// Copyright (c) 2017-2025 The Khronos Group Inc.

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// Copyright (c) 2017 Valve Corporation

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// Copyright (c) 2017 LunarG, Inc.

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//

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// SPDX-License-Identifier: Apache-2.0 OR MIT

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#ifndef _STDFS_CONDITIONS_H

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#define _STDFS_CONDITIONS_H

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// If the C++ macro is set to the version containing C++17, it must support

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// the final C++17 package

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#if __cplusplus >= 201703L

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#define USE_EXPERIMENTAL_FS 0

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#define USE_FINAL_FS 1

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#elif defined(_MSC_VER) && _MSC_VER >= 1900

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#if defined(_HAS_CXX17) && _HAS_CXX17

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// When MSC supports c++17 use <filesystem> package.

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#define USE_EXPERIMENTAL_FS 0

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#define USE_FINAL_FS 1

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#endif  // !_HAS_CXX17

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// GCC supports the experimental filesystem items starting in GCC 6

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#elif (__GNUC__ >= 6)

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#define USE_EXPERIMENTAL_FS 1

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#define USE_FINAL_FS 0

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// If Clang, check for feature support

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#elif defined(__clang__) && (__cpp_lib_filesystem || __cpp_lib_experimental_filesystem)

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#if __cpp_lib_filesystem

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#define USE_EXPERIMENTAL_FS 0

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#define USE_FINAL_FS 1

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#else

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#define USE_EXPERIMENTAL_FS 1

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#define USE_FINAL_FS 0

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#endif

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// If all above fails, fall back to standard C++ and OS-specific items

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#else

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#define USE_EXPERIMENTAL_FS 0

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#define USE_FINAL_FS 0

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#endif

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#endif  // !_STDFS_CONDITIONS_H

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