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 <android/api-level.h>
|
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 <sys/param.h>
|
| Version |
BSD4_2BSD4_3BSD4_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/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 <sys/param.h>
|
|
| Version | __NetBSD_Version__ |
VVRRAAPP00 | VV = Version RR = Revision AA = Release PP = Patch From NetBSD 1.2D (?) until NetBSD 2.0H Must be included from <sys/param.h>
|
| Version | __NetBSD_Version__ |
VVRR00PP00 | VV = Version RR = Revision PP = Patch From NetBSD 2.99.9 Must be included from <sys/param.h>
|
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 <sys/param.h>
|
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 __QNXNTO__ is defined.Must be included from <sys/neutrino.h>
|
| 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 <bbndk.h>
|
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 -sVersion = uname -rAny 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.h>
|
|
| Version | _WRS_VXWORKS_MINOR |
Revision Must be included from <version.h>
|
|
| Version | _WRS_VXWORKS_MAINT |
Patch/maintenance Must be included from <version.h>
|
|
| 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/
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 <android/api-level.h>
|
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 <sys/param.h>
|
| Version |
BSD4_2BSD4_3BSD4_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/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 <sys/param.h>
|
|
| Version | __NetBSD_Version__ |
VVRRAAPP00 | VV = Version RR = Revision AA = Release PP = Patch From NetBSD 1.2D (?) until NetBSD 2.0H Must be included from <sys/param.h>
|
| Version | __NetBSD_Version__ |
VVRR00PP00 | VV = Version RR = Revision PP = Patch From NetBSD 2.99.9 Must be included from <sys/param.h>
|
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 <sys/param.h>
|
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 __QNXNTO__ is defined.Must be included from <sys/neutrino.h>
|
| 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 <bbndk.h>
|
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 -sVersion = uname -rAny 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.h>
|
|
| Version | _WRS_VXWORKS_MINOR |
Revision Must be included from <version.h>
|
|
| Version | _WRS_VXWORKS_MAINT |
Patch/maintenance Must be included from <version.h>
|
|
| 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/