C/C++跨平台的的预编译宏
我们在编译一些跨平台的程序的时候难免会遇到_WIN32 __linux__什么之类的SDK或者编译器环境预定义的宏。有很多,之前还分不清_WIN32 和WIN32的区别。不过这里还好有个列表,做个备忘。
Please send updates/corrections to predef-contribute.
AIX
Type | Macro | Description |
---|---|---|
Identification | _AIX |
|
Version | _AIX'VR' |
V = Version R = Revision |
Identification | __TOS_AIX__ |
Defined by xlC |
Example
If _AIX
is defined, then the following macros can be used to determine the version. Notice that the macros indicates the mentioned version or higher. For example, if _AIX43
is defined, then _AIX41
will also be defined.
AIX Version | Macro |
---|---|
3.2.x | _AIX3 _AIX32 |
4.1 | _AIX41 |
4.3 | _AIX43 |
Android
Type | Macro | Format | Description |
---|---|---|---|
Identification | __ANDROID__ |
||
Version | __ANDROID_API__ |
V | V = API Version
Must be included from |
Notice that Android is based on Linux, and that the Linux macros also are defined for Android.
Example
Android Version | __ANDROID_API__ |
---|---|
1.0 | 1 |
1.1 | 2 |
1.5 | 3 |
1.6 | 4 |
2.0 | 5 |
2.0.1 | 6 |
2.1 | 7 |
2.2 | 8 |
2.3 | 9 |
2.3.3 | 10 |
3.0 | 11 |
Amdahl UTS
Type | Macro |
---|---|
Identification | UTS |
AmigaOS
Type | Macro | Description |
---|---|---|
Identification | AMIGA |
|
Identification | __amigaos__ |
Defined by GNU C |
Apollo AEGIS
Type | Macro |
---|---|
Identification | aegis |
Apollo Domain/OS
Type | Macro |
---|---|
Identification | apollo |
Bada
Based on Nucleus OS.
BeOS
Type | Macro |
---|---|
Identification | __BEOS__ |
Blue Gene
Type | Macro | Description |
---|---|---|
Identification | __bg__ |
All Blue Gene systems
Defined by XL C/C++ and GNU C |
Version | __bgq__ |
Blue Gene/Q
Defined for XL C/C++ and GNU C |
Identification | __THW_BLUEGENE__ |
All Blue Gene systems
Defined by XL C/C++ |
Version | __TOS_BGQ__ |
Blue Gene/Q
Defined by XL C/C++ |
BSD Environment
Type | Macro | Format | Description |
---|---|---|---|
Identification | __FreeBSD__ __NetBSD__ __OpenBSD__ __bsdi__ __DragonFly__ |
||
Version | BSD |
YYYYMM | YYYY = Year MM = Month Must be included from |
Version | BSD4_2 BSD4_3 BSD4_4 |
Must be included from <sys/param.h> |
|
Identification | _SYSTYPE_BSD |
Defined by DEC C |
Example
Version | BSD |
Macro |
---|---|---|
4.3 Net2 | 199103 | |
4.4 | 199306 | BSD4_4 |
4.4BSD-Lite2 | 199506 |
BSD/OS
Type | Macro |
---|---|
Identification | __bsdi__ |
ConvexOS
Type | Macro |
---|---|
Identification | __convex__ |
Cygwin Environment
Type | Macro |
---|---|
Identification | __CYGWIN__ |
DG/UX
Type | Macro |
---|---|
Identification | DGUX |
Identification | __DGUX__ |
Identification | __dgux__ |
DragonFly
Type | Macro |
---|---|
Identification | __DragonFly__ |
DYNIX/ptx
Type | Macro |
---|---|
Identification | _SEQUENT_ |
Identification | sequent |
eCos
Type | Macro |
---|---|
Identification | __ECOS |
EMX Environment
Type | Macro |
---|---|
Identification | __EMX__ |
FreeBSD
Type | Macro | Format | Description |
---|---|---|---|
Identification | __FreeBSD__ |
||
Identification | __FreeBSD_kernel__ |
From FreeBSD 8.3, 9.1, and 10.0.1 | |
Version | BSD |
||
Version | __FreeBSD__ |
V | V = Version |
Version | __FreeBSD_version |
? | Must be included from <osreldate.h> |
Example
FreeBSD | __FreeBSD__ |
__FreeBSD_version |
---|---|---|
1.x | 1 | |
2.0-RELEASE | 2 | 119411 |
2.2-RELEASE | 2 | 220000 |
3.0-RELEASE | 3 | 300005 |
4.0-RELEASE | 4 | 400017 |
4.5-RELEASE | 4 | 450000 |
For more information see the FreeBSD porters handbook.
GNU aka GNU/Hurd
The official name of this operating system is GNU. Hurd is the kernel in the GNU operating system. It is often listed as GNU/Hurd since there is also GNU/Linux and GNU/kFreeBSD, which are most of the GNU operating system with the Linux and FreeBSD kernels respectively.
Type | Macro |
---|---|
Identification | __GNU__ 1 |
Identification | __gnu_hurd__ 1 |
GNU/kFreeBSD
GNU/kFreeBSD is one of the Debian distros that is based on the FreeBSD kernel rather than the Linux or Hurd kernels.
Type | Macro |
---|---|
Identification | __FreeBSD_kernel__ && __GLIBC__ |
Notice that FreeBSD also defines __FreeBSD_kernel__
so the __GLIBC__
macro must be checked to distinguish it.
GNU/Linux
Type | Macro |
---|---|
Identification | __gnu_linux__ |
HI-UX MPP
Type | Macro |
---|---|
Identification | __hiuxmpp |
HP-UX
Type | Macro | Description |
---|---|---|
Identification | _hpux |
Defined by HP UPC |
Identification | hpux |
|
Identification | __hpux |
IBM OS/400
Type | Macro |
---|---|
Identification | __OS400__ |
INTEGRITY
Type | Macro |
---|---|
Identification | __INTEGRITY |
Interix Environment
Type | Macro | Description |
---|---|---|
Identification | __INTERIX |
Defined by GNU C and Visual Studio |
IRIX
Type | Macro |
---|---|
Identification | sgi |
Identification | __sgi |
Linux kernel
Systems based on the Linux kernel define these macros. There are two major Linux-based operating systems: GNU/Linux andAndroid, and numerous others like Ångström or OpenEmbedded
Type | Macro | Description |
---|---|---|
Identification | __linux__ |
1 |
Identification | linux |
Obsolete (not POSIX compliant) |
Identification | __linux |
Obsolete (not POSIX compliant) |
LynxOS
Type | Macro |
---|---|
Identification | __Lynx__ |
MacOS
Type | Macro | Description |
---|---|---|
Identification | macintosh |
Mac OS 9 |
Identification | Macintosh |
Mac OS 9 |
Identification | __APPLE__ && __MACH__ |
Mac OS X
Defined by GNU C and Intel C++ |
Microware OS-9
Type | Macro | Description |
---|---|---|
Identification | __OS9000 |
Defined by Ultimate C/C++ |
Identification | _OSK |
Defined by Ultimate C/C++ |
MINIX
Type | Macro |
---|---|
Identification | __minix |
MorphOS
Type | Macro |
---|---|
Identification | __MORPHOS__ |
MPE/iX
Type | Macro |
---|---|
Identification | mpeix |
Identification | __mpexl |
MSDOS
Type | Macro |
---|---|
Identification | MSDOS |
Identification | __MSDOS__ |
Identification | _MSDOS |
Identification | __DOS__ |
NetBSD
Type | Macro | Format | Description |
---|---|---|---|
Identification | __NetBSD__ |
||
Version | BSD |
||
Version | NetBSD'V'_'R' |
V = Version R = Revision Must be included from |
|
Version | __NetBSD_Version__ |
VVRRAAPP00 | VV = Version RR = Revision AA = Release PP = Patch From NetBSD 1.2D (?) until NetBSD 2.0H Must be included from |
Version | __NetBSD_Version__ |
VVRR00PP00 | VV = Version RR = Revision PP = Patch From NetBSD 2.99.9 Must be included from |
Example
NetBSD | __NetBSD_Version__ |
Macro |
---|---|---|
0.8 | NetBSD0_8 |
|
0.9 | NetBSD0_9 |
|
1.0 | NetBSD1_0 = 1 |
|
1.0A | NetBSD1_0 = 2 |
|
1.2D | 102040000 | |
1.2.1 | 102000100 |
NonStop
Type | Macro |
---|---|
Identification | __TANDEM |
Nucleus RTOS
Type | Macro |
---|---|
Identification | __nucleus__ |
OpenBSD
Type | Macro | Format | Description |
---|---|---|---|
Identification | __OpenBSD__ |
||
Version | BSD |
||
Version | OpenBSD'V'_'R' |
V = Version R = Revision Must be included from |
Example
OpenBSD | Macro |
---|---|
3.1 | OpenBSD3_1 |
3.9 | OpenBSD3_9 |
OS/2
Type | Macro |
---|---|
Identification | OS2 |
Identification | _OS2 |
Identification | __OS2__ |
Identification | __TOS_OS2__ |
Palm OS
Type | Macro | Description |
---|---|---|
Identification | __palmos__ |
Defined by GNU C in PRC-Tools |
Plan 9
Type | Macro |
---|---|
Identification | EPLAN9 |
Pyramid DC/OSx
Type | Macro |
---|---|
Identification | pyr |
QNX
Type | Macro | Format | Description |
---|---|---|---|
Identification | __QNX__ |
QNX 4.x | |
Identification | __QNXNTO__ |
QNX 6.x | |
Version | _NTO_VERSION |
VRR | V = Version RR = Revision Only available when Must be included from |
Version | BBNDK_VERSION_CURRENT |
VVRRRRPPPP | V = Version RRRR = Revision PPPP = Patch Only available on Blackberry 10 From Blackberry 10.1.0 Must be included from |
Example
QNX | _NTO_VERSION |
---|---|
6.2 | 620 |
Reliant UNIX
Type | Macro |
---|---|
Identification | sinux |
SCO OpenServer
Type | Macro | Description |
---|---|---|
Identification | M_I386 |
Defined by GNU C |
Identification | M_XENIX |
Defined by GNU C |
Identification | _SCO_DS |
Solaris
Type | Macro | Description |
---|---|---|
Identification | sun |
|
Identification | __sun |
|
Version | __'System'_'Version' |
System = uname -s Version = uname -r Any illegal character is replaced by an underscore. Defined by Sun Studio |
Use the SVR4 macros to distinguish between Solaris and SunOS.
#if defined(sun) || defined(__sun)
# if defined(__SVR4) || defined(__svr4__)
/* Solaris */
# else
/* SunOS */
# endif
#endif
Example
Solaris | Macro |
---|---|
2.7 | __SunOS_5_7 |
8 | __SunOS_5_8 |
Stratus VOS
Type | Macro | Format | Description |
---|---|---|---|
Identification | __VOS__ |
||
Version | __VOS__ |
V | V = Version |
Notice that the __VOS__
macro is defined by the compiler, but as several compilers can co-exist in the same OS release, the version number is not reliable.
SVR4 Environment
Type | Macro | Description |
---|---|---|
Identification | __sysv__ |
|
Identification | __SVR4 |
|
Identification | __svr4__ |
|
Identification | _SYSTYPE_SVR4 |
Defined on IRIX |
Syllable
Type | Macro |
---|---|
Identification | __SYLLABLE__ |
Symbian OS
Type | Macro |
---|---|
Identification | __SYMBIAN32__ |
Tru64 (OSF/1)
Type | Macro |
---|---|
Identification | __osf__ |
Identification | __osf |
Ultrix
Type | Macro |
---|---|
Identification | ultrix |
Identification | __ultrix |
Identification | __ultrix__ |
Identification | unix & vax |
UNICOS
Type | Macro | Format | Description |
---|---|---|---|
Identification | _UNICOS |
||
Version | _UNICOS |
V | V = Version |
UNICOS/mp
Type | Macro | Description |
---|---|---|
Identification | _CRAY __crayx1 |
UNIX Environment
Type | Macro |
---|---|
Identification | __unix__ |
Identification | __unix |
Notice that not all compilers defines these macros, e.g. the xlC or the DEC C/C++ compiler, so it may be better to use the POSIX or X/Open standard macros instead.
UnixWare
Type | Macro |
---|---|
Identification | sco |
Identification | _UNIXWARE7 |
U/Win Environment
Type | Macro |
---|---|
Identification | _UWIN |
VMS
Type | Macro | Format | Description |
---|---|---|---|
Identification | VMS |
||
Identification | __VMS |
||
Version | __VMS_VER |
VVRREPPTT | VV = Version RR = Revision E = Edit number PP = Patch (01 = A, ... 26 = Z) TT = Type (22 = official) |
Example
VMS | __VMS_VER |
---|---|
6.1 | 60100022 |
6.2 | 60200022 |
6.2-1I | 60210922 |
VxWorks
Type | Macro | Description | |
---|---|---|---|
Identification | __VXWORKS__ |
Defined by GNU C and Diab (from ?) | |
Identification | __vxworks |
Defined by GNU C and Diab (from ?) | |
Version | _WRS_VXWORKS_MAJOR |
Version
Must be included from |
|
Version | _WRS_VXWORKS_MINOR |
Revision
Must be included from |
|
Version | _WRS_VXWORKS_MAINT |
Patch/maintenance
Must be included from |
|
Mode | __RTP__ |
For real-time mode | |
Mode | _WRS_KERNEL |
For kernel mode |
Example
VxWorks | _WRS_VXWORKS_MAJOR |
_WRS_VXWORKS_MINOR |
_WRS_VXWORKS_MAINT |
---|---|---|---|
6.2 | 6 | 2 | 0 |
Windows
Type | Macro | Description |
---|---|---|
Identification | _WIN16 |
Defined for 16-bit environments 1 |
Identification | _WIN32 |
Defined for both 32-bit and 64-bit environments 1 |
Identification | _WIN64 |
Defined for 64-bit environments 1 |
Identification | __WIN32__ |
Defined by Borland C++ |
Identification | __TOS_WIN__ |
Defined by xlC |
Identification | __WINDOWS__ |
Defined by Watcom C/C++ |
Windows CE
Type | Macro | Format | Description |
---|---|---|---|
Identification | _WIN32_WCE |
Defined by Embedded Visual Studio C++ | |
Version | _WIN32_WCE |
VRR | V = Version R = Revision |
Identification | WIN32_PLATFORM_'P' |
P = Platform | |
Version | WIN32_PLATFORM_'P' |
V | P = Platform V = Version |
Example
Version | _WIN32_WCE |
---|---|
2.01 | 201 |
2.11 | 211 |
3.0 | 300 |
4.0 | 400 |
4.1 | 410 |
4.2 | 420 |
5.0 | 501 |
Platform | Macro | Value |
---|---|---|
H/PC 2000 | WIN32_PLATFORM_HPC2000 |
|
H/PC Pro 2.11 | WIN32_PLATFORM_HPCPRO |
211 |
H/PC Pro 3.0 | WIN32_PLATFORM_HPCPRO |
300 |
Pocket PC | WIN32_PLATFORM_PSPC |
1 |
Pocket PC 2002 | WIN32_PLATFORM_PSPC |
310 |
Windows Mobile 2003 | WIN32_PLATFORM_PSPC |
400 |
Smartphone 2002 | WIN32_PLATFORM_WFSP |
100 |
Wind/U Environment
Type | Macro | Format | Description |
---|---|---|---|
Identification | _WINDU_SOURCE |
||
Version | _WINDU_SOURCE |
0xVVRRPP | VV = Version RR = Revision PP = Patch |
Example
Wind/U | _WINDU_SOURCE |
---|---|
3.1.2 | 0x030102 |
z/OS
Type | Macro | Description |
---|---|---|
Identification | __MVS__ |
Host |
Identification | __HOS_MVS__ |
Host |
Identification | __TOS_MVS__ |
Target |
Related
references:
http://stackoverflow.com/questions/5919996/how-to-detect-reliably-mac-os-x-ios-linux-windows-in-c-preprocessor
http://gcc.gnu.org/onlinedocs/cpp/Predefined-Macros.html
http://sourceforge.net/p/predef/wiki/OperatingSystems/
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