919 lines
30 KiB
C++
919 lines
30 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
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** Copyright (C) 2012 Intel Corporation
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of the QtCore module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Digia. For licensing terms and
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** conditions see http://qt.digia.com/licensing. For further information
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** use the contact form at http://qt.digia.com/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Digia gives you certain additional
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** rights. These rights are described in the Digia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QGLOBAL_H
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# include <QtCore/qglobal.h>
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#endif
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#ifndef QCOMPILERDETECTION_H
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#define QCOMPILERDETECTION_H
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/*
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The compiler, must be one of: (Q_CC_x)
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SYM - Digital Mars C/C++ (used to be Symantec C++)
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MSVC - Microsoft Visual C/C++, Intel C++ for Windows
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BOR - Borland/Turbo C++
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WAT - Watcom C++
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GNU - GNU C++
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COMEAU - Comeau C++
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EDG - Edison Design Group C++
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OC - CenterLine C++
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SUN - Forte Developer, or Sun Studio C++
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MIPS - MIPSpro C++
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|
DEC - DEC C++
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HPACC - HP aC++
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USLC - SCO OUDK and UDK
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CDS - Reliant C++
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KAI - KAI C++
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INTEL - Intel C++ for Linux, Intel C++ for Windows
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HIGHC - MetaWare High C/C++
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PGI - Portland Group C++
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GHS - Green Hills Optimizing C++ Compilers
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RVCT - ARM Realview Compiler Suite
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CLANG - C++ front-end for the LLVM compiler
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Should be sorted most to least authoritative.
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*/
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/* Symantec C++ is now Digital Mars */
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#if defined(__DMC__) || defined(__SC__)
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# define Q_CC_SYM
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/* "explicit" semantics implemented in 8.1e but keyword recognized since 7.5 */
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# if defined(__SC__) && __SC__ < 0x750
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# error "Compiler not supported"
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|
# endif
|
|
# define Q_NO_USING_KEYWORD
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|
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#elif defined(_MSC_VER)
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# define Q_CC_MSVC
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# define Q_CC_MSVC_NET
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# define Q_OUTOFLINE_TEMPLATE inline
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# define Q_NO_TEMPLATE_FRIENDS
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|
# define Q_COMPILER_MANGLES_RETURN_TYPE
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|
# define Q_FUNC_INFO __FUNCSIG__
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|
# define Q_ALIGNOF(type) __alignof(type)
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|
# define Q_DECL_ALIGN(n) __declspec(align(n))
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|
# define Q_ASSUME_IMPL(expr) __assume(expr)
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|
# define Q_UNREACHABLE_IMPL() __assume(0)
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|
# define Q_NORETURN __declspec(noreturn)
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|
# define Q_DECL_DEPRECATED __declspec(deprecated)
|
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# define Q_DECL_EXPORT __declspec(dllexport)
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|
# define Q_DECL_IMPORT __declspec(dllimport)
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/* Intel C++ disguising as Visual C++: the `using' keyword avoids warnings */
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# if defined(__INTEL_COMPILER)
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# define Q_DECL_VARIABLE_DEPRECATED
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# define Q_CC_INTEL
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# endif
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|
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/* only defined for MSVC since that's the only compiler that actually optimizes for this */
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/* might get overridden further down when Q_COMPILER_NOEXCEPT is detected */
|
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# ifdef __cplusplus
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# define Q_DECL_NOTHROW throw()
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# endif
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#elif defined(__BORLANDC__) || defined(__TURBOC__)
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# define Q_CC_BOR
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# define Q_INLINE_TEMPLATE
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# if __BORLANDC__ < 0x502
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# error "Compiler not supported"
|
|
# endif
|
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# define Q_NO_USING_KEYWORD
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|
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#elif defined(__WATCOMC__)
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# define Q_CC_WAT
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|
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/* ARM Realview Compiler Suite
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RVCT compiler also defines __EDG__ and __GNUC__ (if --gnu flag is given),
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so check for it before that */
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#elif defined(__ARMCC__) || defined(__CC_ARM)
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# define Q_CC_RVCT
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/* work-around for missing compiler intrinsics */
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# define __is_empty(X) false
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# define __is_pod(X) false
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# define Q_DECL_DEPRECATED __attribute__ ((__deprecated__))
|
|
# ifdef Q_OS_LINUX
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|
# define Q_DECL_EXPORT __attribute__((visibility("default")))
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|
# define Q_DECL_IMPORT __attribute__((visibility("default")))
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# define Q_DECL_HIDDEN __attribute__((visibility("hidden")))
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# else
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# define Q_DECL_EXPORT __declspec(dllexport)
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# define Q_DECL_IMPORT __declspec(dllimport)
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# endif
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|
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#elif defined(__GNUC__)
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# define Q_CC_GNU
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# define Q_C_CALLBACKS
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|
# if defined(__MINGW32__)
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# define Q_CC_MINGW
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# endif
|
|
# if defined(__INTEL_COMPILER)
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/* Intel C++ also masquerades as GCC */
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# define Q_CC_INTEL
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# define Q_ASSUME_IMPL(expr) __assume(expr)
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# define Q_UNREACHABLE_IMPL() __builtin_unreachable()
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# elif defined(__clang__)
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/* Clang also masquerades as GCC */
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# define Q_CC_CLANG
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# define Q_ASSUME_IMPL(expr) if (expr){} else __builtin_unreachable()
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# define Q_UNREACHABLE_IMPL() __builtin_unreachable()
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# if !defined(__has_extension)
|
|
# /* Compatibility with older Clang versions */
|
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# define __has_extension __has_feature
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# endif
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# else
|
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/* Plain GCC */
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# if (__GNUC__ * 100 + __GNUC_MINOR__) >= 405
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# define Q_ASSUME_IMPL(expr) if (expr){} else __builtin_unreachable()
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# define Q_UNREACHABLE_IMPL() __builtin_unreachable()
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# endif
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# endif
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|
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# ifdef Q_OS_WIN
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# define Q_DECL_EXPORT __declspec(dllexport)
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# define Q_DECL_IMPORT __declspec(dllimport)
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# elif defined(QT_VISIBILITY_AVAILABLE)
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# define Q_DECL_EXPORT __attribute__((visibility("default")))
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# define Q_DECL_IMPORT __attribute__((visibility("default")))
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# define Q_DECL_HIDDEN __attribute__((visibility("hidden")))
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# endif
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# define Q_FUNC_INFO __PRETTY_FUNCTION__
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# define Q_ALIGNOF(type) __alignof__(type)
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|
# define Q_TYPEOF(expr) __typeof__(expr)
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# define Q_DECL_DEPRECATED __attribute__ ((__deprecated__))
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|
# define Q_DECL_ALIGN(n) __attribute__((__aligned__(n)))
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|
# define Q_DECL_UNUSED __attribute__((__unused__))
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# define Q_LIKELY(expr) __builtin_expect(!!(expr), true)
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# define Q_UNLIKELY(expr) __builtin_expect(!!(expr), false)
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|
# define Q_NORETURN __attribute__((__noreturn__))
|
|
# define Q_REQUIRED_RESULT __attribute__ ((__warn_unused_result__))
|
|
# if !defined(QT_MOC_CPP)
|
|
# define Q_PACKED __attribute__ ((__packed__))
|
|
# ifndef __ARM_EABI__
|
|
# define QT_NO_ARM_EABI
|
|
# endif
|
|
# endif
|
|
# if (__GNUC__ * 100 + __GNUC_MINOR__) >= 403 && !defined(Q_CC_CLANG)
|
|
# define Q_ALLOC_SIZE(x) __attribute__((alloc_size(x)))
|
|
# endif
|
|
|
|
/* IBM compiler versions are a bit messy. There are actually two products:
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the C product, and the C++ product. The C++ compiler is always packaged
|
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with the latest version of the C compiler. Version numbers do not always
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match. This little table (I'm not sure it's accurate) should be helpful:
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C++ product C product
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C Set 3.1 C Compiler 3.0
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... ...
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C++ Compiler 3.6.6 C Compiler 4.3
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|
... ...
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|
Visual Age C++ 4.0 ...
|
|
... ...
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Visual Age C++ 5.0 C Compiler 5.0
|
|
... ...
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|
Visual Age C++ 6.0 C Compiler 6.0
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|
Now:
|
|
__xlC__ is the version of the C compiler in hexadecimal notation
|
|
is only an approximation of the C++ compiler version
|
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__IBMCPP__ is the version of the C++ compiler in decimal notation
|
|
but it is not defined on older compilers like C Set 3.1 */
|
|
#elif defined(__xlC__)
|
|
# define Q_CC_XLC
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|
# define Q_FULL_TEMPLATE_INSTANTIATION
|
|
# if __xlC__ < 0x400
|
|
# error "Compiler not supported"
|
|
# elif __xlC__ >= 0x0600
|
|
# define Q_ALIGNOF(type) __alignof__(type)
|
|
# define Q_TYPEOF(expr) __typeof__(expr)
|
|
# define Q_DECL_ALIGN(n) __attribute__((__aligned__(n)))
|
|
# define Q_PACKED __attribute__((__packed__))
|
|
# endif
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|
/* Older versions of DEC C++ do not define __EDG__ or __EDG - observed
|
|
on DEC C++ V5.5-004. New versions do define __EDG__ - observed on
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|
Compaq C++ V6.3-002.
|
|
This compiler is different enough from other EDG compilers to handle
|
|
it separately anyway. */
|
|
#elif defined(__DECCXX) || defined(__DECC)
|
|
# define Q_CC_DEC
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|
/* Compaq C++ V6 compilers are EDG-based but I'm not sure about older
|
|
DEC C++ V5 compilers. */
|
|
# if defined(__EDG__)
|
|
# define Q_CC_EDG
|
|
# endif
|
|
/* Compaq have disabled EDG's _BOOL macro and use _BOOL_EXISTS instead
|
|
- observed on Compaq C++ V6.3-002.
|
|
In any case versions prior to Compaq C++ V6.0-005 do not have bool. */
|
|
# if !defined(_BOOL_EXISTS)
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|
# error "Compiler not supported"
|
|
# endif
|
|
/* Spurious (?) error messages observed on Compaq C++ V6.5-014. */
|
|
# define Q_NO_USING_KEYWORD
|
|
/* Apply to all versions prior to Compaq C++ V6.0-000 - observed on
|
|
DEC C++ V5.5-004. */
|
|
# if __DECCXX_VER < 60060000
|
|
# define Q_BROKEN_TEMPLATE_SPECIALIZATION
|
|
# endif
|
|
/* avoid undefined symbol problems with out-of-line template members */
|
|
# define Q_OUTOFLINE_TEMPLATE inline
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|
|
|
/* The Portland Group C++ compiler is based on EDG and does define __EDG__
|
|
but the C compiler does not */
|
|
#elif defined(__PGI)
|
|
# define Q_CC_PGI
|
|
# if defined(__EDG__)
|
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# define Q_CC_EDG
|
|
# endif
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|
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/* Compilers with EDG front end are similar. To detect them we test:
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|
__EDG documented by SGI, observed on MIPSpro 7.3.1.1 and KAI C++ 4.0b
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|
__EDG__ documented in EDG online docs, observed on Compaq C++ V6.3-002
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|
and PGI C++ 5.2-4 */
|
|
#elif !defined(Q_OS_HPUX) && (defined(__EDG) || defined(__EDG__))
|
|
# define Q_CC_EDG
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|
/* From the EDG documentation (does not seem to apply to Compaq C++):
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|
_BOOL
|
|
Defined in C++ mode when bool is a keyword. The name of this
|
|
predefined macro is specified by a configuration flag. _BOOL
|
|
is the default.
|
|
__BOOL_DEFINED
|
|
Defined in Microsoft C++ mode when bool is a keyword. */
|
|
# if !defined(_BOOL) && !defined(__BOOL_DEFINED)
|
|
# error "Compiler not supported"
|
|
# endif
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|
|
/* The Comeau compiler is based on EDG and does define __EDG__ */
|
|
# if defined(__COMO__)
|
|
# define Q_CC_COMEAU
|
|
# define Q_C_CALLBACKS
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|
|
/* The `using' keyword was introduced to avoid KAI C++ warnings
|
|
but it's now causing KAI C++ errors instead. The standard is
|
|
unclear about the use of this keyword, and in practice every
|
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compiler is using its own set of rules. Forget it. */
|
|
# elif defined(__KCC)
|
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# define Q_CC_KAI
|
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# define Q_NO_USING_KEYWORD
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|
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/* Using the `using' keyword avoids Intel C++ for Linux warnings */
|
|
# elif defined(__INTEL_COMPILER)
|
|
# define Q_CC_INTEL
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|
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/* Uses CFront, make sure to read the manual how to tweak templates. */
|
|
# elif defined(__ghs)
|
|
# define Q_CC_GHS
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|
|
|
# elif defined(__DCC__)
|
|
# define Q_CC_DIAB
|
|
# if !defined(__bool)
|
|
# error "Compiler not supported"
|
|
# endif
|
|
|
|
/* The UnixWare 7 UDK compiler is based on EDG and does define __EDG__ */
|
|
# elif defined(__USLC__) && defined(__SCO_VERSION__)
|
|
# define Q_CC_USLC
|
|
/* The latest UDK 7.1.1b does not need this, but previous versions do */
|
|
# if !defined(__SCO_VERSION__) || (__SCO_VERSION__ < 302200010)
|
|
# define Q_OUTOFLINE_TEMPLATE inline
|
|
# endif
|
|
# define Q_NO_USING_KEYWORD /* ### check "using" status */
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|
|
|
/* Never tested! */
|
|
# elif defined(CENTERLINE_CLPP) || defined(OBJECTCENTER)
|
|
# define Q_CC_OC
|
|
# define Q_NO_USING_KEYWORD
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|
|
|
/* CDS++ defines __EDG__ although this is not documented in the Reliant
|
|
documentation. It also follows conventions like _BOOL and this documented */
|
|
# elif defined(sinix)
|
|
# define Q_CC_CDS
|
|
# define Q_NO_USING_KEYWORD
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|
|
|
/* The MIPSpro compiler defines __EDG */
|
|
# elif defined(__sgi)
|
|
# define Q_CC_MIPS
|
|
# define Q_NO_USING_KEYWORD /* ### check "using" status */
|
|
# define Q_NO_TEMPLATE_FRIENDS
|
|
# if defined(_COMPILER_VERSION) && (_COMPILER_VERSION >= 740)
|
|
# define Q_OUTOFLINE_TEMPLATE inline
|
|
# pragma set woff 3624,3625,3649 /* turn off some harmless warnings */
|
|
# endif
|
|
# endif
|
|
|
|
/* VxWorks' DIAB toolchain has an additional EDG type C++ compiler
|
|
(see __DCC__ above). This one is for C mode files (__EDG is not defined) */
|
|
#elif defined(_DIAB_TOOL)
|
|
# define Q_CC_DIAB
|
|
# define Q_FUNC_INFO __PRETTY_FUNCTION__
|
|
|
|
/* Never tested! */
|
|
#elif defined(__HIGHC__)
|
|
# define Q_CC_HIGHC
|
|
|
|
#elif defined(__SUNPRO_CC) || defined(__SUNPRO_C)
|
|
# define Q_CC_SUN
|
|
# define Q_COMPILER_MANGLES_RETURN_TYPE
|
|
/* 5.0 compiler or better
|
|
'bool' is enabled by default but can be disabled using -features=nobool
|
|
in which case _BOOL is not defined
|
|
this is the default in 4.2 compatibility mode triggered by -compat=4 */
|
|
# if __SUNPRO_CC >= 0x500
|
|
# define QT_NO_TEMPLATE_TEMPLATE_PARAMETERS
|
|
/* see http://developers.sun.com/sunstudio/support/Ccompare.html */
|
|
# if __SUNPRO_CC >= 0x590
|
|
# define Q_ALIGNOF(type) __alignof__(type)
|
|
# define Q_TYPEOF(expr) __typeof__(expr)
|
|
# define Q_DECL_ALIGN(n) __attribute__((__aligned__(n)))
|
|
# endif
|
|
# if __SUNPRO_CC >= 0x550
|
|
# define Q_DECL_EXPORT __global
|
|
# endif
|
|
# if __SUNPRO_CC < 0x5a0
|
|
# define Q_NO_TEMPLATE_FRIENDS
|
|
# endif
|
|
# if !defined(_BOOL)
|
|
# error "Compiler not supported"
|
|
# endif
|
|
# if defined(__SUNPRO_CC_COMPAT) && (__SUNPRO_CC_COMPAT <= 4)
|
|
# define Q_NO_USING_KEYWORD
|
|
# endif
|
|
# define Q_C_CALLBACKS
|
|
/* 4.2 compiler or older */
|
|
# else
|
|
# error "Compiler not supported"
|
|
# endif
|
|
|
|
/* CDS++ does not seem to define __EDG__ or __EDG according to Reliant
|
|
documentation but nevertheless uses EDG conventions like _BOOL */
|
|
#elif defined(sinix)
|
|
# define Q_CC_EDG
|
|
# define Q_CC_CDS
|
|
# if !defined(_BOOL)
|
|
# error "Compiler not supported"
|
|
# endif
|
|
# define Q_BROKEN_TEMPLATE_SPECIALIZATION
|
|
|
|
#elif defined(Q_OS_HPUX)
|
|
/* __HP_aCC was not defined in first aCC releases */
|
|
# if defined(__HP_aCC) || __cplusplus >= 199707L
|
|
# define Q_NO_TEMPLATE_FRIENDS
|
|
# define Q_CC_HPACC
|
|
# define Q_FUNC_INFO __PRETTY_FUNCTION__
|
|
# if __HP_aCC-0 < 060000
|
|
# define QT_NO_TEMPLATE_TEMPLATE_PARAMETERS
|
|
# define Q_DECL_EXPORT __declspec(dllexport)
|
|
# define Q_DECL_IMPORT __declspec(dllimport)
|
|
# endif
|
|
# if __HP_aCC-0 >= 061200
|
|
# define Q_DECL_ALIGN(n) __attribute__((aligned(n)))
|
|
# endif
|
|
# if __HP_aCC-0 >= 062000
|
|
# define Q_DECL_EXPORT __attribute__((visibility("default")))
|
|
# define Q_DECL_HIDDEN __attribute__((visibility("hidden")))
|
|
# define Q_DECL_IMPORT Q_DECL_EXPORT
|
|
# endif
|
|
# else
|
|
# error "Compiler not supported"
|
|
# endif
|
|
# define Q_NO_USING_KEYWORD /* ### check "using" status */
|
|
|
|
#else
|
|
# error "Qt has not been tested with this compiler - see http://www.qt-project.org/"
|
|
#endif
|
|
|
|
/*
|
|
* C++11 support
|
|
*
|
|
* Paper Macro
|
|
* N2341 Q_COMPILER_ALIGNAS
|
|
* N2341 Q_COMPILER_ALIGNOF
|
|
* N2427 Q_COMPILER_ATOMICS
|
|
* N2761 Q_COMPILER_ATTRIBUTES
|
|
* N2541 Q_COMPILER_AUTO_FUNCTION
|
|
* N1984 N2546 Q_COMPILER_AUTO_TYPE
|
|
* N2437 Q_COMPILER_CLASS_ENUM
|
|
* N2235 Q_COMPILER_CONSTEXPR
|
|
* N2343 N3276 Q_COMPILER_DECLTYPE
|
|
* N2346 Q_COMPILER_DEFAULT_MEMBERS
|
|
* N2346 Q_COMPILER_DELETE_MEMBERS
|
|
* N1986 Q_COMPILER_DELEGATING_CONSTRUCTORS
|
|
* N2437 Q_COMPILER_EXPLICIT_CONVERSIONS
|
|
* N3206 N3272 Q_COMPILER_EXPLICIT_OVERRIDES (v0.9 and above only)
|
|
* N1987 Q_COMPILER_EXTERN_TEMPLATES
|
|
* N2540 Q_COMPILER_INHERITING_CONSTRUCTORS
|
|
* N2672 Q_COMPILER_INITIALIZER_LISTS
|
|
* N2658 N2927 Q_COMPILER_LAMBDA (v1.0 and above only)
|
|
* N2756 Q_COMPILER_NONSTATIC_MEMBER_INIT
|
|
* N2855 N3050 Q_COMPILER_NOEXCEPT
|
|
* N2431 Q_COMPILER_NULLPTR
|
|
* N2930 Q_COMPILER_RANGE_FOR
|
|
* N2442 Q_COMPILER_RAW_STRINGS
|
|
* N2439 Q_COMPILER_REF_QUALIFIERS
|
|
* N2118 N2844 N3053 Q_COMPILER_RVALUE_REFS (Note: GCC 4.3 implements only the oldest)
|
|
* N1720 Q_COMPILER_STATIC_ASSERT
|
|
* N2258 Q_COMPILER_TEMPLATE_ALIAS
|
|
* N2659 Q_COMPILER_THREAD_LOCAL
|
|
* N2765 Q_COMPILER_UDL
|
|
* N2442 Q_COMPILER_UNICODE_STRINGS
|
|
* N2544 Q_COMPILER_UNRESTRICTED_UNIONS
|
|
* N1653 Q_COMPILER_VARIADIC_MACROS
|
|
* N2242 N2555 Q_COMPILER_VARIADIC_TEMPLATES
|
|
*/
|
|
|
|
#ifdef Q_CC_INTEL
|
|
# if __INTEL_COMPILER < 1200
|
|
# define Q_NO_TEMPLATE_FRIENDS
|
|
# endif
|
|
# if __cplusplus >= 201103L
|
|
# define Q_COMPILER_VARIADIC_MACROS
|
|
# if __INTEL_COMPILER >= 1200
|
|
# define Q_COMPILER_AUTO_TYPE
|
|
# define Q_COMPILER_CLASS_ENUM
|
|
# define Q_COMPILER_DECLTYPE
|
|
# define Q_COMPILER_DEFAULT_MEMBERS
|
|
# define Q_COMPILER_DELETE_MEMBERS
|
|
# define Q_COMPILER_EXTERN_TEMPLATES
|
|
# define Q_COMPILER_LAMBDA
|
|
# define Q_COMPILER_RVALUE_REFS
|
|
# define Q_COMPILER_STATIC_ASSERT
|
|
# define Q_COMPILER_THREAD_LOCAL
|
|
# define Q_COMPILER_VARIADIC_MACROS
|
|
# endif
|
|
# if __INTEL_COMPILER >= 1210
|
|
# define Q_COMPILER_ATTRIBUTES
|
|
# define Q_COMPILER_AUTO_FUNCTION
|
|
# define Q_COMPILER_NULLPTR
|
|
# define Q_COMPILER_TEMPLATE_ALIAS
|
|
# define Q_COMPILER_UNICODE_STRINGS
|
|
# define Q_COMPILER_VARIADIC_TEMPLATES
|
|
# endif
|
|
# if __INTEL_COMPILER >= 1300
|
|
// constexpr support is only partial
|
|
//# define Q_COMPILER_CONSTEXPR
|
|
# define Q_COMPILER_INITIALIZER_LISTS
|
|
# define Q_COMPILER_NOEXCEPT
|
|
# endif
|
|
# if __INTEL_COMPILER >= 1400
|
|
# define Q_COMPILER_CONSTEXPR
|
|
# define Q_COMPILER_DELEGATING_CONSTRUCTORS
|
|
# define Q_COMPILER_EXPLICIT_OVERRIDES
|
|
# define Q_COMPILER_NONSTATIC_MEMBER_INIT
|
|
# define Q_COMPILER_RAW_STRINGS
|
|
# define Q_COMPILER_REF_QUALIFIERS
|
|
# define Q_COMPILER_UNRESTRICTED_UNIONS
|
|
# endif
|
|
# endif
|
|
#endif
|
|
|
|
#ifdef Q_CC_CLANG
|
|
/* General C++ features */
|
|
# if !__has_feature(cxx_exceptions)
|
|
# ifndef QT_NO_EXCEPTIONS
|
|
# define QT_NO_EXCEPTIONS
|
|
# endif
|
|
# endif
|
|
# if !__has_feature(cxx_rtti)
|
|
# define QT_NO_RTTI
|
|
# endif
|
|
|
|
/* C++11 features, see http://clang.llvm.org/cxx_status.html */
|
|
# if __cplusplus >= 201103L || defined(__GXX_EXPERIMENTAL_CXX0X__)
|
|
/* Detect C++ features using __has_feature(), see http://clang.llvm.org/docs/LanguageExtensions.html#cxx11 */
|
|
# if __has_feature(cxx_alignas)
|
|
# define Q_COMPILER_ALIGNAS
|
|
# define Q_COMPILER_ALIGNOF
|
|
# endif
|
|
# if 0 /* not implemented in clang yet */
|
|
# define Q_COMPILER_ATOMICS
|
|
# endif
|
|
# if __has_feature(cxx_attributes)
|
|
# define Q_COMPILER_ATTRIBUTES
|
|
# endif
|
|
# if __has_feature(cxx_auto_type)
|
|
# define Q_COMPILER_AUTO_FUNCTION
|
|
# define Q_COMPILER_AUTO_TYPE
|
|
# endif
|
|
# if __has_feature(cxx_strong_enums)
|
|
# define Q_COMPILER_CLASS_ENUM
|
|
# endif
|
|
# if __has_feature(cxx_constexpr)
|
|
# define Q_COMPILER_CONSTEXPR
|
|
# endif
|
|
# if __has_feature(cxx_decltype) /* && __has_feature(cxx_decltype_incomplete_return_types) */
|
|
# define Q_COMPILER_DECLTYPE
|
|
# endif
|
|
# if __has_feature(cxx_defaulted_functions)
|
|
# define Q_COMPILER_DEFAULT_MEMBERS
|
|
# endif
|
|
# if __has_feature(cxx_deleted_functions)
|
|
# define Q_COMPILER_DELETE_MEMBERS
|
|
# endif
|
|
# if __has_feature(cxx_delegating_constructors)
|
|
# define Q_COMPILER_DELEGATING_CONSTRUCTORS
|
|
# endif
|
|
# if __has_feature(cxx_explicit_conversions)
|
|
# define Q_COMPILER_EXPLICIT_CONVERSIONS
|
|
# endif
|
|
# if __has_feature(cxx_override_control)
|
|
# define Q_COMPILER_EXPLICIT_OVERRIDES
|
|
# endif
|
|
# if __has_feature(cxx_inheriting_constructors)
|
|
# define Q_COMPILER_INHERITING_CONSTRUCTORS
|
|
# endif
|
|
# if __has_feature(cxx_generalized_initializers)
|
|
# define Q_COMPILER_INITIALIZER_LISTS
|
|
# endif
|
|
# if __has_feature(cxx_lambdas)
|
|
# define Q_COMPILER_LAMBDA
|
|
# endif
|
|
# if __has_feature(cxx_noexcept)
|
|
# define Q_COMPILER_NOEXCEPT
|
|
# endif
|
|
# if __has_feature(cxx_nonstatic_member_init)
|
|
# define Q_COMPILER_NONSTATIC_MEMBER_INIT
|
|
# endif
|
|
# if __has_feature(cxx_nullptr)
|
|
# define Q_COMPILER_NULLPTR
|
|
# endif
|
|
# if __has_feature(cxx_range_for)
|
|
# define Q_COMPILER_RANGE_FOR
|
|
# endif
|
|
# if __has_feature(cxx_raw_string_literals)
|
|
# define Q_COMPILER_RAW_STRINGS
|
|
# endif
|
|
# if __has_feature(cxx_reference_qualified_functions)
|
|
# define Q_COMPILER_REF_QUALIFIERS
|
|
# endif
|
|
# if __has_feature(cxx_rvalue_references)
|
|
# define Q_COMPILER_RVALUE_REFS
|
|
# endif
|
|
# if __has_feature(cxx_static_assert)
|
|
# define Q_COMPILER_STATIC_ASSERT
|
|
# endif
|
|
# if __has_feature(cxx_alias_templates)
|
|
# define Q_COMPILER_TEMPLATE_ALIAS
|
|
# endif
|
|
# if __has_feature(cxx_thread_local)
|
|
# define Q_COMPILER_THREAD_LOCAL
|
|
# endif
|
|
# if __has_feature(cxx_user_literals)
|
|
# define Q_COMPILER_UDL
|
|
# endif
|
|
# if __has_feature(cxx_unicode_literals)
|
|
# define Q_COMPILER_UNICODE_STRINGS
|
|
# endif
|
|
# if __has_feature(cxx_unrestricted_unions)
|
|
# define Q_COMPILER_UNRESTRICTED_UNIONS
|
|
# endif
|
|
# if __has_feature(cxx_variadic_templates)
|
|
# define Q_COMPILER_VARIADIC_TEMPLATES
|
|
# endif
|
|
/* Features that have no __has_feature() check */
|
|
# if ((__clang_major__ * 100) + __clang_minor__) >= 209 /* since clang 2.9 */
|
|
# define Q_COMPILER_EXTERN_TEMPLATES
|
|
# define Q_COMPILER_VARIADIC_MACROS
|
|
# endif
|
|
# endif
|
|
#endif // Q_CC_CLANG
|
|
|
|
#if defined(Q_CC_GNU) && !defined(Q_CC_INTEL) && !defined(Q_CC_CLANG)
|
|
# if defined(__GXX_EXPERIMENTAL_CXX0X__) || __cplusplus >= 201103L
|
|
# if (__GNUC__ * 100 + __GNUC_MINOR__) >= 403
|
|
/* C++11 features supported in GCC 4.3: */
|
|
# define Q_COMPILER_DECLTYPE
|
|
# define Q_COMPILER_RVALUE_REFS
|
|
# define Q_COMPILER_STATIC_ASSERT
|
|
# define Q_COMPILER_VARIADIC_MACROS
|
|
# endif
|
|
# if (__GNUC__ * 100 + __GNUC_MINOR__) >= 404
|
|
/* C++11 features supported in GCC 4.4: */
|
|
# define Q_COMPILER_AUTO_FUNCTION
|
|
# define Q_COMPILER_AUTO_TYPE
|
|
# define Q_COMPILER_CLASS_ENUM
|
|
# define Q_COMPILER_DEFAULT_MEMBERS
|
|
# define Q_COMPILER_DELETE_MEMBERS
|
|
# define Q_COMPILER_EXTERN_TEMPLATES
|
|
# define Q_COMPILER_INITIALIZER_LISTS
|
|
# define Q_COMPILER_UNICODE_STRINGS
|
|
# define Q_COMPILER_VARIADIC_TEMPLATES
|
|
# endif
|
|
# if (__GNUC__ * 100 + __GNUC_MINOR__) >= 405
|
|
/* C++11 features supported in GCC 4.5: */
|
|
# define Q_COMPILER_EXPLICIT_CONVERSIONS
|
|
# define Q_COMPILER_LAMBDA
|
|
# define Q_COMPILER_RAW_STRINGS
|
|
# endif
|
|
# if (__GNUC__ * 100 + __GNUC_MINOR__) >= 406
|
|
/* C++11 features supported in GCC 4.6: */
|
|
# define Q_COMPILER_CONSTEXPR
|
|
# define Q_COMPILER_NULLPTR
|
|
# define Q_COMPILER_UNRESTRICTED_UNIONS
|
|
# define Q_COMPILER_RANGE_FOR
|
|
# endif
|
|
# if (__GNUC__ * 100 + __GNUC_MINOR__) >= 407
|
|
/* GCC 4.4 implemented <atomic> and std::atomic using its old intrinsics.
|
|
* However, the implementation is incomplete for most platforms until GCC 4.7:
|
|
* instead, std::atomic would use an external lock. Since we need an std::atomic
|
|
* that is behavior-compatible with QBasicAtomic, we only enable it here */
|
|
# define Q_COMPILER_ATOMICS
|
|
/* GCC 4.6.x has problems dealing with noexcept expressions,
|
|
* so turn the feature on for 4.7 and above, only */
|
|
# define Q_COMPILER_NOEXCEPT
|
|
/* C++11 features supported in GCC 4.7: */
|
|
# define Q_COMPILER_NONSTATIC_MEMBER_INIT
|
|
# define Q_COMPILER_DELEGATING_CONSTRUCTORS
|
|
# define Q_COMPILER_EXPLICIT_OVERRIDES
|
|
# define Q_COMPILER_TEMPLATE_ALIAS
|
|
# define Q_COMPILER_UDL
|
|
# endif
|
|
# if (__GNUC__ * 100 + __GNUC_MINOR__) >= 408
|
|
# define Q_COMPILER_ATTRIBUTES
|
|
# define Q_COMPILER_ALIGNAS
|
|
# define Q_COMPILER_ALIGNOF
|
|
# define Q_COMPILER_INHERITING_CONSTRUCTORS
|
|
# define Q_COMPILER_THREAD_LOCAL
|
|
# if (__GNUC__ * 100 + __GNUC_MINOR__) > 408 || __GNUC_PATCHLEVEL__ >= 1
|
|
# define Q_COMPILER_REF_QUALIFIERS
|
|
# endif
|
|
# endif
|
|
/* C++11 features are complete as of GCC 4.8.1 */
|
|
# endif
|
|
#endif
|
|
|
|
#if defined(Q_CC_MSVC) && !defined(Q_CC_INTEL)
|
|
# if _MSC_VER >= 1400
|
|
/* C++11 features supported in VC8 = VC2005: */
|
|
# define Q_COMPILER_VARIADIC_MACROS
|
|
/* 2005 supports the override and final contextual keywords, in
|
|
the same positions as the C++11 variants, but 'final' is
|
|
called 'sealed' instead:
|
|
http://msdn.microsoft.com/en-us/library/0w2w91tf%28v=vs.80%29.aspx
|
|
So don't define Q_COMPILER_EXPLICIT_OVERRIDES (since it's not
|
|
the same as the C++11 version), but define the Q_DECL_* flags
|
|
accordingly: */
|
|
# define Q_DECL_OVERRIDE override
|
|
# define Q_DECL_FINAL sealed
|
|
# endif
|
|
# if _MSC_VER >= 1600
|
|
/* C++11 features supported in VC10 = VC2010: */
|
|
# define Q_COMPILER_AUTO_FUNCTION
|
|
# define Q_COMPILER_AUTO_TYPE
|
|
# define Q_COMPILER_LAMBDA
|
|
# define Q_COMPILER_DECLTYPE
|
|
# define Q_COMPILER_RVALUE_REFS
|
|
# define Q_COMPILER_STATIC_ASSERT
|
|
// MSVC has std::initilizer_list, but does not support the braces initialization
|
|
//# define Q_COMPILER_INITIALIZER_LISTS
|
|
# endif
|
|
# if _MSC_VER >= 1700
|
|
/* C++11 features supported in VC11 = VC2012: */
|
|
# undef Q_DECL_OVERRIDE /* undo 2005/2098 settings... */
|
|
# undef Q_DECL_FINAL /* undo 2005/2008 settings... */
|
|
# define Q_COMPILER_EXPLICIT_OVERRIDES /* ...and use std C++11 now */
|
|
# define Q_COMPILER_RANGE_FOR
|
|
# define Q_COMPILER_CLASS_ENUM
|
|
# define Q_COMPILER_ATOMICS
|
|
# endif /* VC 11 */
|
|
#endif /* Q_CC_MSVC */
|
|
|
|
#ifdef __cplusplus
|
|
# if defined(Q_OS_QNX)
|
|
# include <utility>
|
|
# if defined(_YVALS) || defined(_LIBCPP_VER)
|
|
// QNX: libcpp (Dinkumware-based) doesn't have the <initializer_list>
|
|
// header, so the feature is useless, even if the compiler supports
|
|
// it. Disable.
|
|
# ifdef Q_COMPILER_INITIALIZER_LISTS
|
|
# undef Q_COMPILER_INITIALIZER_LISTS
|
|
# endif
|
|
# ifdef Q_COMPILER_RVALUE_REFS
|
|
# undef Q_COMPILER_RVALUE_REFS
|
|
# endif
|
|
# endif
|
|
# endif
|
|
#endif // Q_OS_QNX
|
|
|
|
/*
|
|
* C++11 keywords and expressions
|
|
*/
|
|
#ifdef Q_COMPILER_NULLPTR
|
|
# define Q_NULLPTR nullptr
|
|
#else
|
|
# define Q_NULLPTR 0
|
|
#endif
|
|
|
|
#ifdef Q_COMPILER_DEFAULT_MEMBERS
|
|
# define Q_DECL_EQ_DEFAULT = default
|
|
#else
|
|
# define Q_DECL_EQ_DEFAULT
|
|
#endif
|
|
|
|
#ifdef Q_COMPILER_DELETE_MEMBERS
|
|
# define Q_DECL_EQ_DELETE = delete
|
|
#else
|
|
# define Q_DECL_EQ_DELETE
|
|
#endif
|
|
|
|
// Don't break code that is already using Q_COMPILER_DEFAULT_DELETE_MEMBERS
|
|
#if defined(Q_COMPILER_DEFAULT_MEMBERS) && defined(Q_COMPILER_DELETE_MEMBERS)
|
|
# define Q_COMPILER_DEFAULT_DELETE_MEMBERS
|
|
#endif
|
|
|
|
#ifdef Q_COMPILER_CONSTEXPR
|
|
# define Q_DECL_CONSTEXPR constexpr
|
|
#else
|
|
# define Q_DECL_CONSTEXPR
|
|
#endif
|
|
|
|
#ifdef Q_COMPILER_EXPLICIT_OVERRIDES
|
|
# define Q_DECL_OVERRIDE override
|
|
# define Q_DECL_FINAL final
|
|
#else
|
|
# ifndef Q_DECL_OVERRIDE
|
|
# define Q_DECL_OVERRIDE
|
|
# endif
|
|
# ifndef Q_DECL_FINAL
|
|
# define Q_DECL_FINAL
|
|
# endif
|
|
#endif
|
|
|
|
#ifdef Q_COMPILER_NOEXCEPT
|
|
# define Q_DECL_NOEXCEPT noexcept
|
|
# define Q_DECL_NOEXCEPT_EXPR(x) noexcept(x)
|
|
# ifdef Q_DECL_NOTHROW
|
|
# undef Q_DECL_NOTHROW /* override with C++11 noexcept if available */
|
|
# endif
|
|
#else
|
|
# define Q_DECL_NOEXCEPT
|
|
# define Q_DECL_NOEXCEPT_EXPR(x)
|
|
#endif
|
|
#ifndef Q_DECL_NOTHROW
|
|
# define Q_DECL_NOTHROW Q_DECL_NOEXCEPT
|
|
#endif
|
|
|
|
#if defined(Q_COMPILER_ALIGNOF) && !defined(Q_ALIGNOF)
|
|
# define Q_ALIGNOF(x) alignof(x)
|
|
#endif
|
|
|
|
/*
|
|
* Fallback macros to certain compiler features
|
|
*/
|
|
|
|
#ifndef Q_NORETURN
|
|
# define Q_NORETURN
|
|
#endif
|
|
#ifndef Q_PACKED
|
|
# define Q_PACKED
|
|
#endif
|
|
#ifndef Q_LIKELY
|
|
# define Q_LIKELY(x) (x)
|
|
#endif
|
|
#ifndef Q_UNLIKELY
|
|
# define Q_UNLIKELY(x) (x)
|
|
#endif
|
|
#ifndef Q_ASSUME_IMPL
|
|
# define Q_ASSUME_IMPL(expr) qt_noop()
|
|
#endif
|
|
#ifndef Q_UNREACHABLE_IMPL
|
|
# define Q_UNREACHABLE_IMPL() qt_noop()
|
|
#endif
|
|
#ifndef Q_ALLOC_SIZE
|
|
# define Q_ALLOC_SIZE(x)
|
|
#endif
|
|
#ifndef Q_REQUIRED_RESULT
|
|
# define Q_REQUIRED_RESULT
|
|
#endif
|
|
#ifndef Q_DECL_DEPRECATED
|
|
# define Q_DECL_DEPRECATED
|
|
#endif
|
|
#ifndef Q_DECL_VARIABLE_DEPRECATED
|
|
# define Q_DECL_VARIABLE_DEPRECATED Q_DECL_DEPRECATED
|
|
#endif
|
|
#ifndef Q_DECL_EXPORT
|
|
# define Q_DECL_EXPORT
|
|
#endif
|
|
#ifndef Q_DECL_IMPORT
|
|
# define Q_DECL_IMPORT
|
|
#endif
|
|
#ifndef Q_DECL_HIDDEN
|
|
# define Q_DECL_HIDDEN
|
|
#endif
|
|
#ifndef Q_DECL_UNUSED
|
|
# define Q_DECL_UNUSED
|
|
#endif
|
|
#ifndef Q_FUNC_INFO
|
|
# if defined(Q_OS_SOLARIS) || defined(Q_CC_XLC)
|
|
# define Q_FUNC_INFO __FILE__ "(line number unavailable)"
|
|
# else
|
|
# define Q_FUNC_INFO __FILE__ ":" QT_STRINGIFY(__LINE__)
|
|
# endif
|
|
#endif
|
|
|
|
/*
|
|
Workaround for static const members on MSVC++.
|
|
*/
|
|
|
|
#if defined(Q_CC_MSVC)
|
|
# define QT_STATIC_CONST static
|
|
# define QT_STATIC_CONST_IMPL
|
|
#else
|
|
# define QT_STATIC_CONST static const
|
|
# define QT_STATIC_CONST_IMPL const
|
|
#endif
|
|
|
|
/*
|
|
Proper for-scoping in MIPSpro CC
|
|
*/
|
|
#ifndef QT_NO_KEYWORDS
|
|
# if defined(Q_CC_MIPS) || (defined(Q_CC_HPACC) && defined(__ia64))
|
|
# define for if (0) {} else for
|
|
# endif
|
|
#endif
|
|
|
|
#ifdef Q_COMPILER_RVALUE_REFS
|
|
#define qMove(x) std::move(x)
|
|
#else
|
|
#define qMove(x) (x)
|
|
#endif
|
|
|
|
#define Q_UNREACHABLE() \
|
|
do {\
|
|
Q_ASSERT_X(false, "Q_UNREACHABLE()", "Q_UNREACHABLE was reached");\
|
|
Q_UNREACHABLE_IMPL();\
|
|
} while (0)
|
|
|
|
#define Q_ASSUME(Expr) \
|
|
do {\
|
|
const bool valueOfExpression = Expr;\
|
|
Q_ASSERT_X(valueOfExpression, "Q_ASSUME()", "Assumption in Q_ASSUME(\"" #Expr "\") was not correct");\
|
|
Q_ASSUME_IMPL(valueOfExpression);\
|
|
Q_UNUSED(valueOfExpression); /* the value may not be used if Q_ASSERT_X and Q_ASSUME_IMPL are noop */\
|
|
} while (0)
|
|
|
|
|
|
/*
|
|
Sanitize compiler feature availability
|
|
*/
|
|
#if !defined(Q_PROCESSOR_X86)
|
|
# undef QT_COMPILER_SUPPORTS_SSE2
|
|
# undef QT_COMPILER_SUPPORTS_SSE3
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# undef QT_COMPILER_SUPPORTS_SSSE3
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# undef QT_COMPILER_SUPPORTS_SSE4_1
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# undef QT_COMPILER_SUPPORTS_SSE4_2
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# undef QT_COMPILER_SUPPORTS_AVX
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# undef QT_COMPILER_SUPPORTS_AVX2
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#endif
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#if !defined(Q_PROCESSOR_ARM)
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# undef QT_COMPILER_SUPPORTS_IWMMXT
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# undef QT_COMPILER_SUPPORTS_NEON
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#endif
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#if !defined(Q_PROCESSOR_MIPS)
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# undef QT_COMPILER_SUPPORTS_MIPS_DSP
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# undef QT_COMPILER_SUPPORTS_MIPS_DSPR2
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#endif
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#endif // QCOMPILERDETECTION_H
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