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| ** |
| ** Copyright (C) 2017 The Qt Company Ltd. |
| ** Copyright (C) 2015 Intel Corporation. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the QtCore module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
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| ** GNU Lesser General Public License Usage |
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| ** General Public License version 3 as published by the Free Software |
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| ** packaging of this file. Please review the following information to |
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| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 2.0 or (at your option) the GNU General |
| ** Public license version 3 or any later version approved by the KDE Free |
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| ****************************************************************************/ |
| |
| #ifndef QGLOBAL_P_H |
| #define QGLOBAL_P_H |
| |
| // |
| // W A R N I N G |
| // ------------- |
| // |
| // This file is not part of the Qt API. It exists purely as an |
| // implementation detail. This header file may change from version to |
| // version without notice, or even be removed. |
| // |
| // We mean it. |
| // |
| |
| #include "qglobal.h" |
| #include "qglobal_p.h" // include self to avoid syncqt warning - no-op |
| |
| #ifndef QT_BOOTSTRAPPED |
| #include <QtCore/private/qconfig_p.h> |
| #include <QtCore/private/qtcore-config_p.h> |
| #endif |
| |
| #if defined(__cplusplus) |
| #ifdef Q_CC_MINGW |
| # include <unistd.h> // Define _POSIX_THREAD_SAFE_FUNCTIONS to obtain localtime_r() |
| #endif |
| #include <time.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| // These behave as if they consult the environment, so need to share its locking: |
| Q_CORE_EXPORT void qTzSet(); |
| Q_CORE_EXPORT time_t qMkTime(struct tm *when); |
| |
| QT_END_NAMESPACE |
| |
| #if !__has_builtin(__builtin_available) |
| #include <initializer_list> |
| #include <QtCore/qoperatingsystemversion.h> |
| #include <QtCore/qversionnumber.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| struct qt_clang_builtin_available_os_version_data { |
| QOperatingSystemVersion::OSType type; |
| const char *version; |
| }; |
| |
| static inline bool qt_clang_builtin_available( |
| const std::initializer_list<qt_clang_builtin_available_os_version_data> &versions) |
| { |
| for (auto it = versions.begin(); it != versions.end(); ++it) { |
| if (QOperatingSystemVersion::currentType() == it->type) { |
| const auto current = QOperatingSystemVersion::current(); |
| return QVersionNumber( |
| current.majorVersion(), |
| current.minorVersion(), |
| current.microVersion()) >= QVersionNumber::fromString( |
| QString::fromLatin1(it->version)); |
| } |
| } |
| |
| // Result is true if the platform is not any of the checked ones; this matches behavior of |
| // LLVM __builtin_available and @available constructs |
| return true; |
| } |
| |
| QT_END_NAMESPACE |
| |
| #define QT_AVAILABLE_OS_VER(os, ver) \ |
| QT_PREPEND_NAMESPACE(qt_clang_builtin_available_os_version_data){\ |
| QT_PREPEND_NAMESPACE(QOperatingSystemVersion)::os, #ver} |
| #define QT_AVAILABLE_CAT(L, R) QT_AVAILABLE_CAT_(L, R) |
| #define QT_AVAILABLE_CAT_(L, R) L ## R |
| #define QT_AVAILABLE_EXPAND(...) QT_AVAILABLE_OS_VER(__VA_ARGS__) |
| #define QT_AVAILABLE_SPLIT(os_ver) QT_AVAILABLE_EXPAND(QT_AVAILABLE_CAT(QT_AVAILABLE_SPLIT_, os_ver)) |
| #define QT_AVAILABLE_SPLIT_macOS MacOS, |
| #define QT_AVAILABLE_SPLIT_iOS IOS, |
| #define QT_AVAILABLE_SPLIT_tvOS TvOS, |
| #define QT_AVAILABLE_SPLIT_watchOS WatchOS, |
| #define QT_BUILTIN_AVAILABLE0(e) \ |
| QT_PREPEND_NAMESPACE(qt_clang_builtin_available)({}) |
| #define QT_BUILTIN_AVAILABLE1(a, e) \ |
| QT_PREPEND_NAMESPACE(qt_clang_builtin_available)({QT_AVAILABLE_SPLIT(a)}) |
| #define QT_BUILTIN_AVAILABLE2(a, b, e) \ |
| QT_PREPEND_NAMESPACE(qt_clang_builtin_available)({QT_AVAILABLE_SPLIT(a), \ |
| QT_AVAILABLE_SPLIT(b)}) |
| #define QT_BUILTIN_AVAILABLE3(a, b, c, e) \ |
| QT_PREPEND_NAMESPACE(qt_clang_builtin_available)({QT_AVAILABLE_SPLIT(a), \ |
| QT_AVAILABLE_SPLIT(b), \ |
| QT_AVAILABLE_SPLIT(c)}) |
| #define QT_BUILTIN_AVAILABLE4(a, b, c, d, e) \ |
| QT_PREPEND_NAMESPACE(qt_clang_builtin_available)({QT_AVAILABLE_SPLIT(a), \ |
| QT_AVAILABLE_SPLIT(b), \ |
| QT_AVAILABLE_SPLIT(c), \ |
| QT_AVAILABLE_SPLIT(d)}) |
| #define QT_BUILTIN_AVAILABLE_ARG(arg0, arg1, arg2, arg3, arg4, arg5, ...) arg5 |
| #define QT_BUILTIN_AVAILABLE_CHOOSER(...) QT_BUILTIN_AVAILABLE_ARG(__VA_ARGS__, \ |
| QT_BUILTIN_AVAILABLE4, \ |
| QT_BUILTIN_AVAILABLE3, \ |
| QT_BUILTIN_AVAILABLE2, \ |
| QT_BUILTIN_AVAILABLE1, \ |
| QT_BUILTIN_AVAILABLE0, ) |
| #define __builtin_available(...) QT_BUILTIN_AVAILABLE_CHOOSER(__VA_ARGS__)(__VA_ARGS__) |
| #endif // !__has_builtin(__builtin_available) |
| #endif // defined(__cplusplus) |
| |
| #endif // QGLOBAL_P_H |
| |