| /**************************************************************************** |
| ** |
| ** Copyright (C) 2015 The Qt Company Ltd. |
| ** Copyright (C) 2014 Intel Corporation |
| ** Contact: http://www.qt.io/licensing/ |
| ** |
| ** This file is part of the QtCore module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL21$ |
| ** Commercial License Usage |
| ** Licensees holding valid commercial Qt licenses may use this file in |
| ** accordance with the commercial license agreement provided with the |
| ** Software or, alternatively, in accordance with the terms contained in |
| ** a written agreement between you and The Qt Company. For licensing terms |
| ** and conditions see http://www.qt.io/terms-conditions. For further |
| ** information use the contact form at http://www.qt.io/contact-us. |
| ** |
| ** GNU Lesser General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU Lesser |
| ** General Public License version 2.1 or version 3 as published by the Free |
| ** Software Foundation and appearing in the file LICENSE.LGPLv21 and |
| ** LICENSE.LGPLv3 included in the packaging of this file. Please review the |
| ** following information to ensure the GNU Lesser General Public License |
| ** requirements will be met: https://www.gnu.org/licenses/lgpl.html and |
| ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
| ** |
| ** As a special exception, The Qt Company gives you certain additional |
| ** rights. These rights are described in The Qt Company LGPL Exception |
| ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #ifndef QGLOBAL_H |
| # include <QtCore/qglobal.h> |
| #endif |
| |
| #ifndef QCOMPILERDETECTION_H |
| #define QCOMPILERDETECTION_H |
| |
| /* |
| The compiler, must be one of: (Q_CC_x) |
| |
| SYM - Digital Mars C/C++ (used to be Symantec C++) |
| MSVC - Microsoft Visual C/C++, Intel C++ for Windows |
| BOR - Borland/Turbo C++ |
| WAT - Watcom C++ |
| GNU - GNU C++ |
| COMEAU - Comeau C++ |
| EDG - Edison Design Group C++ |
| OC - CenterLine C++ |
| SUN - Forte Developer, or Sun Studio C++ |
| MIPS - MIPSpro C++ |
| DEC - DEC C++ |
| HPACC - HP aC++ |
| USLC - SCO OUDK and UDK |
| CDS - Reliant C++ |
| KAI - KAI C++ |
| INTEL - Intel C++ for Linux, Intel C++ for Windows |
| HIGHC - MetaWare High C/C++ |
| PGI - Portland Group C++ |
| GHS - Green Hills Optimizing C++ Compilers |
| RVCT - ARM Realview Compiler Suite |
| CLANG - C++ front-end for the LLVM compiler |
| |
| |
| Should be sorted most to least authoritative. |
| */ |
| |
| /* Symantec C++ is now Digital Mars */ |
| #if defined(__DMC__) || defined(__SC__) |
| # define Q_CC_SYM |
| /* "explicit" semantics implemented in 8.1e but keyword recognized since 7.5 */ |
| # if defined(__SC__) && __SC__ < 0x750 |
| # error "Compiler not supported" |
| # endif |
| |
| #elif defined(_MSC_VER) |
| # define Q_CC_MSVC (_MSC_VER) |
| # define Q_CC_MSVC_NET |
| # define Q_OUTOFLINE_TEMPLATE inline |
| # if _MSC_VER < 1600 |
| # define Q_NO_TEMPLATE_FRIENDS |
| # endif |
| # define Q_COMPILER_MANGLES_RETURN_TYPE |
| # define Q_FUNC_INFO __FUNCSIG__ |
| # define Q_ALIGNOF(type) __alignof(type) |
| # define Q_DECL_ALIGN(n) __declspec(align(n)) |
| # define Q_ASSUME_IMPL(expr) __assume(expr) |
| # define Q_UNREACHABLE_IMPL() __assume(0) |
| # define Q_NORETURN __declspec(noreturn) |
| # define Q_DECL_DEPRECATED __declspec(deprecated) |
| # define Q_DECL_DEPRECATED_X(text) __declspec(deprecated(text)) |
| # define Q_DECL_EXPORT __declspec(dllexport) |
| # define Q_DECL_IMPORT __declspec(dllimport) |
| /* Intel C++ disguising as Visual C++: the `using' keyword avoids warnings */ |
| # if defined(__INTEL_COMPILER) |
| # define Q_DECL_VARIABLE_DEPRECATED |
| # define Q_CC_INTEL |
| # endif |
| |
| /* only defined for MSVC since that's the only compiler that actually optimizes for this */ |
| /* might get overridden further down when Q_COMPILER_NOEXCEPT is detected */ |
| # ifdef __cplusplus |
| # define Q_DECL_NOTHROW throw() |
| # endif |
| |
| #elif defined(__BORLANDC__) || defined(__TURBOC__) |
| # define Q_CC_BOR |
| # define Q_INLINE_TEMPLATE |
| # if __BORLANDC__ < 0x502 |
| # error "Compiler not supported" |
| # endif |
| |
| #elif defined(__WATCOMC__) |
| # define Q_CC_WAT |
| |
| /* ARM Realview Compiler Suite |
| RVCT compiler also defines __EDG__ and __GNUC__ (if --gnu flag is given), |
| so check for it before that */ |
| #elif defined(__ARMCC__) || defined(__CC_ARM) |
| # define Q_CC_RVCT |
| /* work-around for missing compiler intrinsics */ |
| # define __is_empty(X) false |
| # define __is_pod(X) false |
| # define Q_DECL_DEPRECATED __attribute__ ((__deprecated__)) |
| # ifdef Q_OS_LINUX |
| # define Q_DECL_EXPORT __attribute__((visibility("default"))) |
| # define Q_DECL_IMPORT __attribute__((visibility("default"))) |
| # define Q_DECL_HIDDEN __attribute__((visibility("hidden"))) |
| # else |
| # define Q_DECL_EXPORT __declspec(dllexport) |
| # define Q_DECL_IMPORT __declspec(dllimport) |
| # endif |
| |
| #elif defined(__GNUC__) |
| # define Q_CC_GNU (__GNUC__ * 100 + __GNUC_MINOR__) |
| # if defined(__MINGW32__) |
| # define Q_CC_MINGW |
| # endif |
| # if defined(__INTEL_COMPILER) |
| /* Intel C++ also masquerades as GCC */ |
| # define Q_CC_INTEL (__INTEL_COMPILER) |
| # ifdef __clang__ |
| /* Intel C++ masquerades as Clang masquerading as GCC */ |
| # define Q_CC_CLANG 305 |
| # endif |
| # define Q_ASSUME_IMPL(expr) __assume(expr) |
| # define Q_UNREACHABLE_IMPL() __builtin_unreachable() |
| # if __INTEL_COMPILER >= 1300 && !defined(__APPLE__) |
| # define Q_DECL_DEPRECATED_X(text) __attribute__ ((__deprecated__(text))) |
| # endif |
| # elif defined(__clang__) |
| /* Clang also masquerades as GCC */ |
| # if defined(__apple_build_version__) |
| # /* http://en.wikipedia.org/wiki/Xcode#Toolchain_Versions */ |
| # if __apple_build_version__ >= 6020049 |
| # define Q_CC_CLANG 306 |
| # elif __apple_build_version__ >= 6000051 |
| # define Q_CC_CLANG 305 |
| # elif __apple_build_version__ >= 5030038 |
| # define Q_CC_CLANG 304 |
| # elif __apple_build_version__ >= 5000275 |
| # define Q_CC_CLANG 303 |
| # elif __apple_build_version__ >= 4250024 |
| # define Q_CC_CLANG 302 |
| # elif __apple_build_version__ >= 3180045 |
| # define Q_CC_CLANG 301 |
| # elif __apple_build_version__ >= 2111001 |
| # define Q_CC_CLANG 300 |
| # else |
| # error "Unknown Apple Clang version" |
| # endif |
| # else |
| # define Q_CC_CLANG ((__clang_major__ * 100) + __clang_minor__) |
| # endif |
| # if __has_builtin(__builtin_assume) |
| # define Q_ASSUME_IMPL(expr) __builtin_assume(expr) |
| # else |
| # define Q_ASSUME_IMPL(expr) if (expr){} else __builtin_unreachable() |
| # endif |
| # define Q_UNREACHABLE_IMPL() __builtin_unreachable() |
| # if !defined(__has_extension) |
| # /* Compatibility with older Clang versions */ |
| # define __has_extension __has_feature |
| # endif |
| # if defined(__APPLE__) |
| /* Apple/clang specific features */ |
| # define Q_DECL_CF_RETURNS_RETAINED __attribute__((cf_returns_retained)) |
| # ifdef __OBJC__ |
| # define Q_DECL_NS_RETURNS_AUTORELEASED __attribute__((ns_returns_autoreleased)) |
| # endif |
| # endif |
| # else |
| /* Plain GCC */ |
| # if Q_CC_GNU >= 405 |
| # define Q_ASSUME_IMPL(expr) if (expr){} else __builtin_unreachable() |
| # define Q_UNREACHABLE_IMPL() __builtin_unreachable() |
| # define Q_DECL_DEPRECATED_X(text) __attribute__ ((__deprecated__(text))) |
| # endif |
| # endif |
| |
| # ifdef Q_OS_WIN |
| # define Q_DECL_EXPORT __declspec(dllexport) |
| # define Q_DECL_IMPORT __declspec(dllimport) |
| # elif defined(QT_VISIBILITY_AVAILABLE) |
| # define Q_DECL_EXPORT __attribute__((visibility("default"))) |
| # define Q_DECL_IMPORT __attribute__((visibility("default"))) |
| # define Q_DECL_HIDDEN __attribute__((visibility("hidden"))) |
| # endif |
| |
| # define Q_FUNC_INFO __PRETTY_FUNCTION__ |
| # define Q_ALIGNOF(type) __alignof__(type) |
| # define Q_TYPEOF(expr) __typeof__(expr) |
| # define Q_DECL_DEPRECATED __attribute__ ((__deprecated__)) |
| # define Q_DECL_ALIGN(n) __attribute__((__aligned__(n))) |
| # define Q_DECL_UNUSED __attribute__((__unused__)) |
| # define Q_LIKELY(expr) __builtin_expect(!!(expr), true) |
| # define Q_UNLIKELY(expr) __builtin_expect(!!(expr), false) |
| # define Q_NORETURN __attribute__((__noreturn__)) |
| # define Q_REQUIRED_RESULT __attribute__ ((__warn_unused_result__)) |
| # define Q_DECL_PURE_FUNCTION __attribute__((pure)) |
| # define Q_DECL_CONST_FUNCTION __attribute__((const)) |
| # if !defined(QT_MOC_CPP) |
| # define Q_PACKED __attribute__ ((__packed__)) |
| # ifndef __ARM_EABI__ |
| # define QT_NO_ARM_EABI |
| # endif |
| # endif |
| # if Q_CC_GNU >= 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: |
| the C product, and the C++ product. The C++ compiler is always packaged |
| with the latest version of the C compiler. Version numbers do not always |
| match. This little table (I'm not sure it's accurate) should be helpful: |
| |
| C++ product C product |
| |
| C Set 3.1 C Compiler 3.0 |
| ... ... |
| C++ Compiler 3.6.6 C Compiler 4.3 |
| ... ... |
| Visual Age C++ 4.0 ... |
| ... ... |
| Visual Age C++ 5.0 C Compiler 5.0 |
| ... ... |
| Visual Age C++ 6.0 C Compiler 6.0 |
| |
| Now: |
| __xlC__ is the version of the C compiler in hexadecimal notation |
| is only an approximation of the C++ compiler version |
| __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 |
| # 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 |
| |
| /* 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 |
| 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 |
| /* 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 has disabled EDG's _BOOL macro and uses _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) |
| # error "Compiler not supported" |
| # endif |
| /* Spurious (?) error messages observed on Compaq C++ V6.5-014. */ |
| /* 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 |
| |
| /* 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__) |
| # define Q_CC_EDG |
| # endif |
| |
| /* Compilers with EDG front end are similar. To detect them we test: |
| __EDG documented by SGI, observed on MIPSpro 7.3.1.1 and KAI C++ 4.0b |
| __EDG__ documented in EDG online docs, observed on Compaq C++ V6.3-002 |
| and PGI C++ 5.2-4 */ |
| #elif !defined(Q_OS_HPUX) && (defined(__EDG) || defined(__EDG__)) |
| # define Q_CC_EDG |
| /* From the EDG documentation (does not seem to apply to Compaq C++): |
| _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 |
| |
| /* The Comeau compiler is based on EDG and does define __EDG__ */ |
| # if defined(__COMO__) |
| # define Q_CC_COMEAU |
| |
| /* 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 |
| compiler is using its own set of rules. Forget it. */ |
| # elif defined(__KCC) |
| # define Q_CC_KAI |
| |
| /* Using the `using' keyword avoids Intel C++ for Linux warnings */ |
| # elif defined(__INTEL_COMPILER) |
| # define Q_CC_INTEL (__INTEL_COMPILER) |
| |
| /* Uses CFront, make sure to read the manual how to tweak templates. */ |
| # elif defined(__ghs) |
| # define Q_CC_GHS |
| |
| # 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 |
| |
| /* Never tested! */ |
| # elif defined(CENTERLINE_CLPP) || defined(OBJECTCENTER) |
| # define Q_CC_OC |
| |
| /* 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 |
| |
| /* The MIPSpro compiler defines __EDG */ |
| # elif defined(__sgi) |
| # define Q_CC_MIPS |
| # 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 |
| /* 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 |
| |
| #else |
| # error "Qt has not been tested with this compiler - see http://www.qt-project.org/" |
| #endif |
| |
| /* |
| * C++11 support |
| * |
| * Paper Macro SD-6 macro |
| * N2341 Q_COMPILER_ALIGNAS |
| * N2341 Q_COMPILER_ALIGNOF |
| * N2427 Q_COMPILER_ATOMICS |
| * N2761 Q_COMPILER_ATTRIBUTES __cpp_attributes = 200809 |
| * N2541 Q_COMPILER_AUTO_FUNCTION |
| * N1984 N2546 Q_COMPILER_AUTO_TYPE |
| * N2437 Q_COMPILER_CLASS_ENUM |
| * N2235 Q_COMPILER_CONSTEXPR __cpp_constexpr = 200704 |
| * N2343 N3276 Q_COMPILER_DECLTYPE __cpp_decltype = 200707 |
| * 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 |
| * N1987 Q_COMPILER_EXTERN_TEMPLATES |
| * N2540 Q_COMPILER_INHERITING_CONSTRUCTORS |
| * N2672 Q_COMPILER_INITIALIZER_LISTS |
| * N2658 N2927 Q_COMPILER_LAMBDA __cpp_lambdas = 200907 |
| * 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 __cpp_raw_strings = 200710 |
| * N2439 Q_COMPILER_REF_QUALIFIERS |
| * N2118 N2844 N3053 Q_COMPILER_RVALUE_REFS __cpp_rvalue_references = 200610 |
| * N1720 Q_COMPILER_STATIC_ASSERT __cpp_static_assert = 200410 |
| * N2258 Q_COMPILER_TEMPLATE_ALIAS |
| * N2659 Q_COMPILER_THREAD_LOCAL |
| * N2660 Q_COMPILER_THREADSAFE_STATICS |
| * N2765 Q_COMPILER_UDL __cpp_user_defined_literals = 200809 |
| * N2442 Q_COMPILER_UNICODE_STRINGS __cpp_unicode_literals = 200710 |
| * N2640 Q_COMPILER_UNIFORM_INIT |
| * N2544 Q_COMPILER_UNRESTRICTED_UNIONS |
| * N1653 Q_COMPILER_VARIADIC_MACROS |
| * N2242 N2555 Q_COMPILER_VARIADIC_TEMPLATES __cpp_variadic_templates = 200704 |
| * |
| * For any future version of the C++ standard, we use only the SD-6 macro. |
| * For full listing, see |
| * http://isocpp.org/std/standing-documents/sd-6-sg10-feature-test-recommendations |
| * |
| * C++ extensions: |
| * Q_COMPILER_RESTRICTED_VLA variable-length arrays, prior to __cpp_runtime_arrays |
| */ |
| |
| #ifdef Q_CC_INTEL |
| # define Q_COMPILER_RESTRICTED_VLA |
| # define Q_COMPILER_VARIADIC_MACROS // C++11 feature supported as an extension in other modes, too |
| # define Q_COMPILER_THREADSAFE_STATICS |
| # if __INTEL_COMPILER < 1200 |
| # define Q_NO_TEMPLATE_FRIENDS |
| # endif |
| # if __INTEL_COMPILER >= 1310 && !defined(_WIN32) |
| // ICC supports C++14 binary literals in C, C++98, and C++11 modes |
| // at least since 13.1, but I can't test further back |
| # define Q_COMPILER_BINARY_LITERALS |
| # endif |
| # if __cplusplus >= 201103L || defined(__INTEL_CXX11_MODE__) |
| # 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_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 |
| # ifndef _CHAR16T // MSVC headers |
| # define Q_COMPILER_UNICODE_STRINGS |
| # endif |
| # define Q_COMPILER_VARIADIC_TEMPLATES |
| # endif |
| # if __INTEL_COMPILER >= 1300 |
| # define Q_COMPILER_ATOMICS |
| // constexpr support is only partial |
| //# define Q_COMPILER_CONSTEXPR |
| # define Q_COMPILER_INITIALIZER_LISTS |
| # define Q_COMPILER_UNIFORM_INIT |
| # define Q_COMPILER_NOEXCEPT |
| # endif |
| # if __INTEL_COMPILER >= 1400 |
| // causes issues with QArrayData and QtPrivate::RefCount - Intel issue ID 6000056211, bug DPD200534796 |
| //# define Q_COMPILER_CONSTEXPR |
| # define Q_COMPILER_DELEGATING_CONSTRUCTORS |
| # define Q_COMPILER_EXPLICIT_CONVERSIONS |
| # define Q_COMPILER_EXPLICIT_OVERRIDES |
| # define Q_COMPILER_NONSTATIC_MEMBER_INIT |
| # define Q_COMPILER_RANGE_FOR |
| # define Q_COMPILER_RAW_STRINGS |
| # define Q_COMPILER_REF_QUALIFIERS |
| # define Q_COMPILER_UNICODE_STRINGS |
| # define Q_COMPILER_UNRESTRICTED_UNIONS |
| # endif |
| # if __INTEL_COMPILER >= 1500 |
| # if __INTEL_COMPILER * 100 + __INTEL_COMPILER_UPDATE >= 150001 |
| // the bug mentioned above is fixed in 15.0.1 |
| # define Q_COMPILER_CONSTEXPR |
| # endif |
| # define Q_COMPILER_ALIGNAS |
| # define Q_COMPILER_ALIGNOF |
| # define Q_COMPILER_INHERITING_CONSTRUCTORS |
| # define Q_COMPILER_THREAD_LOCAL |
| # define Q_COMPILER_UDL |
| # endif |
| # endif |
| #endif |
| |
| #if defined(Q_CC_CLANG) && !defined(Q_CC_INTEL) |
| /* General C++ features */ |
| # define Q_COMPILER_RESTRICTED_VLA |
| # define Q_COMPILER_THREADSAFE_STATICS |
| # 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 |
| # if __has_feature(attribute_deprecated_with_message) |
| # define Q_DECL_DEPRECATED_X(text) __attribute__ ((__deprecated__(text))) |
| # endif |
| |
| // Clang supports binary literals in C, C++98 and C++11 modes |
| // It's been supported "since the dawn of time itself" (cf. commit 179883) |
| # if __has_extension(cxx_binary_literals) |
| # define Q_COMPILER_BINARY_LITERALS |
| # endif |
| |
| // Variadic macros are supported for gnu++98, c++11, c99 ... since 2.9 |
| # if Q_CC_CLANG >= 209 |
| # if !defined(__STRICT_ANSI__) || defined(__GXX_EXPERIMENTAL_CXX0X__) \ |
| || (defined(__cplusplus) && (__cplusplus >= 201103L)) \ |
| || (defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)) |
| # define Q_COMPILER_VARIADIC_MACROS |
| # endif |
| # 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 __has_feature(cxx_atomic) && __has_include(<atomic>) |
| # 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) && Q_CC_CLANG > 302 /* CLANG 3.2 has bad/partial support */ |
| # 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 |
| # define Q_COMPILER_UNIFORM_INIT /* both covered by this feature macro, according to docs */ |
| # 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 Q_CC_CLANG >= 209 /* since clang 2.9 */ |
| # define Q_COMPILER_EXTERN_TEMPLATES |
| # endif |
| # endif |
| |
| /* C++1y features, deprecated macros. Do not update this list. */ |
| # if __cplusplus > 201103L |
| //# if __has_feature(cxx_binary_literals) |
| //# define Q_COMPILER_BINARY_LITERALS // see above |
| //# endif |
| # if __has_feature(cxx_generic_lambda) |
| # define Q_COMPILER_GENERIC_LAMBDA |
| # endif |
| # if __has_feature(cxx_init_capture) |
| # define Q_COMPILER_LAMBDA_CAPTURES |
| # endif |
| # if __has_feature(cxx_relaxed_constexpr) |
| # define Q_COMPILER_RELAXED_CONSTEXPR_FUNCTIONS |
| # endif |
| # if __has_feature(cxx_decltype_auto) && __has_feature(cxx_return_type_deduction) |
| # define Q_COMPILER_RETURN_TYPE_DEDUCTION |
| # endif |
| # if __has_feature(cxx_variable_templates) |
| # define Q_COMPILER_VARIABLE_TEMPLATES |
| # endif |
| # if __has_feature(cxx_runtime_array) |
| # define Q_COMPILER_VLA |
| # endif |
| # endif |
| |
| # if defined(__has_warning) |
| # if __has_warning("-Wunused-private-field") |
| # define Q_DECL_UNUSED_MEMBER Q_DECL_UNUSED |
| # endif |
| # endif |
| |
| #endif // Q_CC_CLANG |
| |
| #if defined(Q_CC_GNU) && !defined(Q_CC_INTEL) && !defined(Q_CC_CLANG) |
| # define Q_COMPILER_RESTRICTED_VLA |
| # define Q_COMPILER_THREADSAFE_STATICS |
| # if Q_CC_GNU >= 403 |
| // GCC supports binary literals in C, C++98 and C++11 modes |
| # define Q_COMPILER_BINARY_LITERALS |
| # endif |
| # if !defined(__STRICT_ANSI__) || defined(__GXX_EXPERIMENTAL_CXX0X__) \ |
| || (defined(__cplusplus) && (__cplusplus >= 201103L)) \ |
| || (defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)) |
| // Variadic macros are supported for gnu++98, c++11, C99 ... since forever (gcc 2.97) |
| # define Q_COMPILER_VARIADIC_MACROS |
| # endif |
| # if defined(__GXX_EXPERIMENTAL_CXX0X__) || __cplusplus >= 201103L |
| # if Q_CC_GNU >= 403 |
| /* C++11 features supported in GCC 4.3: */ |
| # define Q_COMPILER_DECLTYPE |
| # define Q_COMPILER_RVALUE_REFS |
| # define Q_COMPILER_STATIC_ASSERT |
| # endif |
| # if Q_CC_GNU >= 404 |
| /* C++11 features supported in GCC 4.4: */ |
| # define Q_COMPILER_AUTO_FUNCTION |
| # define Q_COMPILER_AUTO_TYPE |
| # define Q_COMPILER_EXTERN_TEMPLATES |
| # define Q_COMPILER_UNIFORM_INIT |
| # define Q_COMPILER_UNICODE_STRINGS |
| # define Q_COMPILER_VARIADIC_TEMPLATES |
| # endif |
| # if Q_CC_GNU >= 405 |
| /* C++11 features supported in GCC 4.5: */ |
| # define Q_COMPILER_EXPLICIT_CONVERSIONS |
| /* GCC 4.4 implements initializer_list but does not define typedefs required |
| * by the standard. */ |
| # define Q_COMPILER_INITIALIZER_LISTS |
| # define Q_COMPILER_LAMBDA |
| # define Q_COMPILER_RAW_STRINGS |
| # define Q_COMPILER_CLASS_ENUM |
| # endif |
| # if Q_CC_GNU >= 406 |
| /* Pre-4.6 compilers implement a non-final snapshot of N2346, hence default and delete |
| * functions are supported only if they are public. Starting from 4.6, GCC handles |
| * final version - the access modifier is not relevant. */ |
| # define Q_COMPILER_DEFAULT_MEMBERS |
| # define Q_COMPILER_DELETE_MEMBERS |
| /* 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 Q_CC_GNU >= 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 Q_CC_GNU >= 408 |
| # define Q_COMPILER_ATTRIBUTES |
| # define Q_COMPILER_ALIGNAS |
| # define Q_COMPILER_ALIGNOF |
| # define Q_COMPILER_INHERITING_CONSTRUCTORS |
| # define Q_COMPILER_THREAD_LOCAL |
| # if Q_CC_GNU > 408 || __GNUC_PATCHLEVEL__ >= 1 |
| # define Q_COMPILER_REF_QUALIFIERS |
| # endif |
| # endif |
| /* C++11 features are complete as of GCC 4.8.1 */ |
| # endif |
| # if __cplusplus > 201103L |
| # if Q_CC_GNU >= 409 |
| /* C++1y features in GCC 4.9 - deprecated, do not update this list */ |
| //# define Q_COMPILER_BINARY_LITERALS // already supported since GCC 4.3 as an extension |
| # define Q_COMPILER_LAMBDA_CAPTURES |
| # define Q_COMPILER_RETURN_TYPE_DEDUCTION |
| # endif |
| # endif |
| #endif |
| |
| #if defined(Q_CC_MSVC) && !defined(Q_CC_INTEL) |
| # if defined(__cplusplus) |
| # if _MSC_VER >= 1400 |
| /* C++11 features supported in VC8 = VC2005: */ |
| # define Q_COMPILER_VARIADIC_MACROS |
| |
| # ifndef __cplusplus_cli |
| /* 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 |
| The behavior is slightly different in C++/CLI, which requires the |
| "virtual" keyword to be present too, so don't define for that. |
| 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 |
| # 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_DECLTYPE |
| # define Q_COMPILER_EXTERN_TEMPLATES |
| # define Q_COMPILER_LAMBDA |
| # define Q_COMPILER_NULLPTR |
| # define Q_COMPILER_RVALUE_REFS |
| # define Q_COMPILER_STATIC_ASSERT |
| // MSVC's library has std::initializer_list, but the compiler does not support the braces initialization |
| //# define Q_COMPILER_INITIALIZER_LISTS |
| //# define Q_COMPILER_UNIFORM_INIT |
| # endif |
| # if _MSC_VER >= 1700 |
| /* C++11 features supported in VC11 = VC2012: */ |
| # undef Q_DECL_OVERRIDE /* undo 2005/2008 settings... */ |
| # undef Q_DECL_FINAL /* undo 2005/2008 settings... */ |
| # define Q_COMPILER_EXPLICIT_OVERRIDES /* ...and use std C++11 now */ |
| # define Q_COMPILER_CLASS_ENUM |
| # define Q_COMPILER_ATOMICS |
| # endif /* VC 11 */ |
| # if _MSC_VER >= 1800 |
| /* C++11 features in VC12 = VC2013 */ |
| # define Q_COMPILER_DEFAULT_MEMBERS |
| # define Q_COMPILER_DELETE_MEMBERS |
| # define Q_COMPILER_DELEGATING_CONSTRUCTORS |
| # define Q_COMPILER_EXPLICIT_CONVERSIONS |
| # define Q_COMPILER_NONSTATIC_MEMBER_INIT |
| // implemented, but nested initialization fails (eg tst_qvector): http://connect.microsoft.com/VisualStudio/feedback/details/800364/initializer-list-calls-object-destructor-twice |
| // #define Q_COMPILER_INITIALIZER_LISTS |
| // implemented in principle, but has a bug that makes it unusable: http://connect.microsoft.com/VisualStudio/feedback/details/802058/c-11-unified-initialization-fails-with-c-style-arrays |
| // #define Q_COMPILER_UNIFORM_INIT |
| # define Q_COMPILER_RAW_STRINGS |
| # define Q_COMPILER_TEMPLATE_ALIAS |
| # define Q_COMPILER_VARIADIC_TEMPLATES |
| # endif /* VC 12 */ |
| # if _MSC_FULL_VER >= 180030324 // VC 12 SP 2 RC |
| # define Q_COMPILER_INITIALIZER_LISTS |
| # endif /* VC 12 SP 2 RC */ |
| # if _MSC_VER >= 1900 |
| /* C++11 features in VC14 = VC2015 */ |
| # define Q_COMPILER_ALIGNAS |
| # define Q_COMPILER_ALIGNOF |
| // Partial support, insufficient for Qt |
| //# define Q_COMPILER_CONSTEXPR |
| # define Q_COMPILER_INHERITING_CONSTRUCTORS |
| # define Q_COMPILER_NOEXCEPT |
| # define Q_COMPILER_RANGE_FOR |
| # define Q_COMPILER_REF_QUALIFIERS |
| # define Q_COMPILER_THREAD_LOCAL |
| # define Q_COMPILER_THREADSAFE_STATICS |
| # define Q_COMPILER_UDL |
| # define Q_COMPILER_UNICODE_STRINGS |
| // Uniform initialization is not working yet -- build errors with QUuid |
| //# define Q_COMPILER_UNIFORM_INIT |
| # define Q_COMPILER_UNRESTRICTED_UNIONS |
| # endif |
| # endif /* __cplusplus */ |
| #endif /* Q_CC_MSVC */ |
| |
| #ifdef __cplusplus |
| # include <utility> |
| # if defined(Q_OS_QNX) |
| // QNX: test if we are using libcpp (Dinkumware-based). |
| // Older versions (QNX 650) do not support C++11 features |
| // _HAS_CPP0X is defined by toolchains that actually include |
| // Dinkum C++11 libcpp. |
| # if defined(_HAS_DINKUM_CLIB) && !defined(_HAS_CPP0X) |
| // Disable C++11 features that depend on library support |
| # undef Q_COMPILER_INITIALIZER_LISTS |
| # undef Q_COMPILER_RVALUE_REFS |
| # undef Q_COMPILER_REF_QUALIFIERS |
| # undef Q_COMPILER_UNICODE_STRINGS |
| # undef Q_COMPILER_NOEXCEPT |
| # endif |
| # if defined(_HAS_DINKUM_CLIB) && !defined(_HAS_NULLPTR_T) |
| # undef Q_COMPILER_NULLPTR |
| # endif |
| # if defined(_HAS_DINKUM_CLIB) && !defined(_HAS_CONSTEXPR) |
| // The libcpp is missing constexpr keywords on important functions like std::numeric_limits<>::min() |
| // Disable constexpr support on QNX even if the compiler supports it |
| # undef Q_COMPILER_CONSTEXPR |
| # endif |
| # endif // Q_OS_QNX |
| # if (defined(Q_CC_CLANG) || defined(Q_CC_INTEL)) && defined(Q_OS_MAC) && defined(__GNUC_LIBSTD__) \ |
| && ((__GNUC_LIBSTD__-0) * 100 + __GNUC_LIBSTD_MINOR__-0 <= 402) |
| // Apple has not updated libstdc++ since 2007, which means it does not have |
| // <initializer_list> or std::move. Let's disable these features |
| # undef Q_COMPILER_INITIALIZER_LISTS |
| # undef Q_COMPILER_RVALUE_REFS |
| # undef Q_COMPILER_REF_QUALIFIERS |
| // Also disable <atomic>, since it's clearly not there |
| # undef Q_COMPILER_ATOMICS |
| # endif |
| # if defined(_LIBCPP_VERSION) |
| // libc++ uses __has_feature(cxx_atomic), so disable the feature if the compiler |
| // doesn't support it. That's required for the Intel compiler on OS X, for example. |
| # if !__has_feature(cxx_atomic) |
| # undef Q_COMPILER_ATOMICS |
| # endif |
| # endif |
| # if defined(Q_COMPILER_THREADSAFE_STATICS) && defined(Q_OS_MAC) |
| // Apple's low-level implementation of the C++ support library |
| // (libc++abi.dylib, shared between libstdc++ and libc++) has deadlocks. The |
| // C++11 standard requires the deadlocks to be removed, so this will eventually |
| // be fixed; for now, let's disable this. |
| # undef Q_COMPILER_THREADSAFE_STATICS |
| # endif |
| #endif |
| |
| /* |
| * C++11 keywords and expressions |
| */ |
| #ifdef Q_COMPILER_NULLPTR |
| # define Q_NULLPTR nullptr |
| #else |
| # define Q_NULLPTR NULL |
| #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 |
| |
| #if defined(__cpp_constexpr) && __cpp_constexpr-0 >= 201304 |
| # define Q_DECL_CONSTEXPR constexpr |
| # define Q_DECL_RELAXED_CONSTEXPR constexpr |
| # define Q_CONSTEXPR constexpr |
| # define Q_RELAXED_CONSTEXPR constexpr |
| #elif defined Q_COMPILER_CONSTEXPR |
| # define Q_DECL_CONSTEXPR constexpr |
| # define Q_DECL_RELAXED_CONSTEXPR |
| # define Q_CONSTEXPR constexpr |
| # define Q_RELAXED_CONSTEXPR const |
| #else |
| # define Q_DECL_CONSTEXPR |
| # define Q_DECL_RELAXED_CONSTEXPR |
| # define Q_CONSTEXPR const |
| # define Q_RELAXED_CONSTEXPR const |
| #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_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_DEPRECATED_X |
| # define Q_DECL_DEPRECATED_X(text) 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_DECL_UNUSED_MEMBER |
| # define Q_DECL_UNUSED_MEMBER |
| #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 |
| #ifndef Q_DECL_CF_RETURNS_RETAINED |
| # define Q_DECL_CF_RETURNS_RETAINED |
| #endif |
| #ifndef Q_DECL_NS_RETURNS_AUTORELEASED |
| # define Q_DECL_NS_RETURNS_AUTORELEASED |
| #endif |
| #ifndef Q_DECL_PURE_FUNCTION |
| # define Q_DECL_PURE_FUNCTION |
| #endif |
| #ifndef Q_DECL_CONST_FUNCTION |
| # define Q_DECL_CONST_FUNCTION Q_DECL_PURE_FUNCTION |
| #endif |
| |
| /* |
| * Warning/diagnostic handling |
| */ |
| |
| #define QT_DO_PRAGMA(text) _Pragma(#text) |
| #if defined(Q_CC_INTEL) && defined(Q_CC_MSVC) |
| /* icl.exe: Intel compiler on Windows */ |
| # undef QT_DO_PRAGMA /* not needed */ |
| # define QT_WARNING_PUSH __pragma(warning(push)) |
| # define QT_WARNING_POP __pragma(warning(pop)) |
| # define QT_WARNING_DISABLE_MSVC(number) |
| # define QT_WARNING_DISABLE_INTEL(number) __pragma(warning(disable: number)) |
| # define QT_WARNING_DISABLE_CLANG(text) |
| # define QT_WARNING_DISABLE_GCC(text) |
| #elif defined(Q_CC_INTEL) |
| /* icc: Intel compiler on Linux or OS X */ |
| # define QT_WARNING_PUSH QT_DO_PRAGMA(warning(push)) |
| # define QT_WARNING_POP QT_DO_PRAGMA(warning(pop)) |
| # define QT_WARNING_DISABLE_INTEL(number) QT_DO_PRAGMA(warning(disable: number)) |
| # define QT_WARNING_DISABLE_MSVC(number) |
| # define QT_WARNING_DISABLE_CLANG(text) |
| # define QT_WARNING_DISABLE_GCC(text) |
| #elif defined(Q_CC_MSVC) && _MSC_VER >= 1500 |
| # undef QT_DO_PRAGMA /* not needed */ |
| # define QT_WARNING_PUSH __pragma(warning(push)) |
| # define QT_WARNING_POP __pragma(warning(pop)) |
| # define QT_WARNING_DISABLE_MSVC(number) __pragma(warning(disable: number)) |
| # define QT_WARNING_DISABLE_INTEL(number) |
| # define QT_WARNING_DISABLE_CLANG(text) |
| # define QT_WARNING_DISABLE_GCC(text) |
| #elif defined(Q_CC_CLANG) |
| # define QT_WARNING_PUSH QT_DO_PRAGMA(clang diagnostic push) |
| # define QT_WARNING_POP QT_DO_PRAGMA(clang diagnostic pop) |
| # define QT_WARNING_DISABLE_CLANG(text) QT_DO_PRAGMA(clang diagnostic ignored text) |
| # define QT_WARNING_DISABLE_GCC(text) QT_DO_PRAGMA(GCC diagnostic ignored text) // GCC directives work in Clang too |
| # define QT_WARNING_DISABLE_INTEL(number) |
| # define QT_WARNING_DISABLE_MSVC(number) |
| #elif defined(Q_CC_GNU) && (__GNUC__ * 100 + __GNUC_MINOR__ >= 405) |
| # define QT_WARNING_PUSH QT_DO_PRAGMA(GCC diagnostic push) |
| # define QT_WARNING_POP QT_DO_PRAGMA(GCC diagnostic pop) |
| # define QT_WARNING_DISABLE_GCC(text) QT_DO_PRAGMA(GCC diagnostic ignored text) |
| # define QT_WARNING_DISABLE_CLANG(text) |
| # define QT_WARNING_DISABLE_INTEL(number) |
| # define QT_WARNING_DISABLE_MSVC(number) |
| #else // All other compilers, GCC < 4.6 and MSVC < 2008 |
| # define QT_WARNING_DISABLE_GCC(text) |
| # define QT_WARNING_PUSH |
| # define QT_WARNING_POP |
| # define QT_WARNING_DISABLE_INTEL(number) |
| # define QT_WARNING_DISABLE_MSVC(number) |
| # define QT_WARNING_DISABLE_CLANG(text) |
| # define QT_WARNING_DISABLE_GCC(text) |
| #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);\ |
| } while (0) |
| |
| |
| /* |
| Sanitize compiler feature availability |
| */ |
| #if !defined(Q_PROCESSOR_X86) |
| # undef QT_COMPILER_SUPPORTS_SSE2 |
| # undef QT_COMPILER_SUPPORTS_SSE3 |
| # undef QT_COMPILER_SUPPORTS_SSSE3 |
| # undef QT_COMPILER_SUPPORTS_SSE4_1 |
| # undef QT_COMPILER_SUPPORTS_SSE4_2 |
| # undef QT_COMPILER_SUPPORTS_AVX |
| # undef QT_COMPILER_SUPPORTS_AVX2 |
| #endif |
| #if !defined(Q_PROCESSOR_ARM) |
| # undef QT_COMPILER_SUPPORTS_NEON |
| #endif |
| #if !defined(Q_PROCESSOR_MIPS) |
| # undef QT_COMPILER_SUPPORTS_MIPS_DSP |
| # undef QT_COMPILER_SUPPORTS_MIPS_DSPR2 |
| #endif |
| |
| #endif // QCOMPILERDETECTION_H |