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---
title: "C/C++ Cross-Platform Compile-Macros"
tags: ["C", "C++"]
time: "2023-11-05"
summary: "When we compile some cross -platform programs, we will inevitably encounter _win32 __linux__ what is the macro of the compiler or the compiler environment.It indicates some information of the current platform environment to the compiler."
---
When we compile some cross -platform programs, we will inevitably encounter \_win32 , **Linux** What are the macroscopic macro of the compiler environment.There are many differences between \_win32 and win32 before.But there is a list here, making a memo.
For example, a code that can only be compiled under the Unix-Like platform in a set.If you compile the wrong error on the non-Unix-Like platform, then my code can add a macro to check whether it is a UNIX environment.If it is normally compiled, the error is thrown directly.
```text
#ifndef __unix__
#error This program should be complied and work in UNIX-LIKE platform.
#endif
```
The complete code is as follows:
```c
#ifndef __unix__
#error This program should be complied and work in UNIX-LIKE platform.
#endif
#include <stdio.h>
int main()
{
printf("this is unix-like platform");
return 0;
}
```
This code can be compiled normally in the Mac OS and Linux environments, and an error will be reported under Windows.
---
**Below is a macro list of a detection environment.**
Please send updates/corrections to <u><a href="mailto:predef-contribute@lists.sourceforge.net">predef-contribute</a></u>.
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/AIX_operating_system">AIX</a></u>**
| Type | Macro | Description |
| -------------- | ----------- | ----------------------- |
| Identification | \_AIX | |
| Version | \_AIX'VR' | V = VersionR = 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 |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/Android_%28operating_system%29">Android</a></u>**
| Type | Macro | Format | Description |
| -------------- | --------------- | ------ | ------------------------------------------------------------ |
| Identification | **ANDROID** | | |
| Version | **ANDROID_API** | V | V = API VersionMust 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 |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/UTS_%28Mainframe_UNIX%29">Amdahl UTS</a></u>**
| Type | Macro |
| -------------- | ----- |
| Identification | UTS |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/AmigaOS">AmigaOS</a></u>**
| Type | Macro | Description |
| -------------- | ----------- | ---------------- |
| Identification | AMIGA | |
| Identification | **amigaos** | Defined by GNU C |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/Domain/OS">Apollo AEGIS</a></u>**
| Type | Macro |
| -------------- | ----- |
| Identification | aegis |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/Domain/OS">Apollo Domain/OS</a></u>**
| Type | Macro |
| -------------- | ------ |
| Identification | apollo |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/Bada_%28operating_system%29">Bada</a></u>**
Based on Nucleus OS.
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/BeOS">BeOS</a></u>**
| Type | Macro |
| -------------- | -------- |
| Identification | **BEOS** |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/Bluegene">Blue Gene</a></u>**
| Type | Macro | Description |
| -------------- | ---------------- | -------------------------------------------------- |
| Identification | **bg** | All Blue Gene systemsDefined by XL C/C++ and GNU C |
| Version | **bgq** | Blue Gene/QDefined for XL C/C++ and GNU C |
| Identification | **THW_BLUEGENE** | All Blue Gene systemsDefined by XL C/C++ |
| Version | **TOS_BGQ** | Blue Gene/QDefined by XL C/C++ |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/Bsd">BSD Environment</a></u>**
| Type | Macro | Format | Description |
| -------------- | ------------------------------------------------------------- | ------ | ---------------------------------------------------------- |
| Identification | **FreeBSD\_\_**NetBSD\_**\_OpenBSD\_\_**bsdi\_**\_DragonFly** | | |
| Version | BSD | YYYYMM | YYYY = YearMM = MonthMust 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 | |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/BSD/OS">BSD/OS</a></u>**
| Type | Macro |
| -------------- | -------- |
| Identification | **bsdi** |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/Convex_Computer">ConvexOS</a></u>**
| Type | Macro |
| -------------- | ---------- |
| Identification | **convex** |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/Cygwin">Cygwin Environment</a></u>**
| Type | Macro |
| -------------- | ---------- |
| Identification | **CYGWIN** |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/Data_General">DG/UX</a></u>**
| Type | Macro |
| -------------- | -------- |
| Identification | DGUX |
| Identification | **DGUX** |
| Identification | **dgux** |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/DragonFly_BSD">DragonFly</a></u>**
| Type | Macro |
| -------------- | ------------- |
| Identification | **DragonFly** |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/Dynix">DYNIX/ptx</a></u>**
| Type | Macro |
| -------------- | --------- |
| Identification | _SEQUENT_ |
| Identification | sequent |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/ECos">eCos</a></u>**
| Type | Macro |
| -------------- | -------- |
| Identification | \_\_ECOS |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/EMX_%28programming_environment%29">EMX Environment</a></u>**
| Type | Macro |
| -------------- | ------- |
| Identification | **EMX** |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/Freebsd">FreeBSD</a></u>**
| 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 <u><a rel="nofollow noreferrer" class="wrap external" href="http://www.freebsd.org/doc/en_US.ISO8859-1/books/porters-handbook/freebsd-versions.html">FreeBSD porters handbook</a></u>.
**GNU aka <u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/GNU/Hurd">GNU/Hurd</a></u>**
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 |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/GNU/kFreeBSD">GNU/kFreeBSD</a></u>**
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.
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/GNU/Linux">GNU/Linux</a></u>**
| Type | Macro |
| -------------- | ------------- |
| Identification | **gnu_linux** |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/HI-UX">HI-UX MPP</a></u>**
| Type | Macro |
| -------------- | ----------- |
| Identification | \_\_hiuxmpp |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/HP-UX">HP-UX</a></u>**
| Type | Macro | Description |
| -------------- | -------- | ----------------- |
| Identification | \_hpux | Defined by HP UPC |
| Identification | hpux | |
| Identification | \_\_hpux | |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/IBM_i">IBM OS/400</a></u>**
| Type | Macro |
| -------------- | --------- |
| Identification | **OS400** |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/Integrity_%28operating_system%29">INTEGRITY</a></u>**
| Type | Macro |
| -------------- | ------------- |
| Identification | \_\_INTEGRITY |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/Interix">Interix Environment</a></u>**
| Type | Macro | Description |
| -------------- | ----------- | ---------------------------------- |
| Identification | \_\_INTERIX | Defined by GNU C and Visual Studio |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/Irix">IRIX</a></u>**
| Type | Macro |
| -------------- | ------- |
| Identification | sgi |
| Identification | \_\_sgi |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/Linux_kernel">Linux kernel</a></u>**
Systems based on the Linux kernel define these macros. There are two major Linux-based operating systems: <u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/GNU/Linux">GNU/Linux</a></u> and<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/Android">Android</a></u>, and numerous others like <u><a rel="nofollow noreferrer" class="wrap external" href="http://www.angstrom-distribution.org/">Ångström</a></u> or <u><a rel="nofollow noreferrer" class="wrap external" href="http://www.openembedded.org/">OpenEmbedded</a></u>
| Type | Macro | Description |
| -------------- | --------- | ------------------------------ |
| Identification | **linux** | 1 |
| Identification | linux | Obsolete (not POSIX compliant) |
| Identification | \_\_linux | Obsolete (not POSIX compliant) |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/LynxOS">LynxOS</a></u>**
| Type | Macro |
| -------------- | -------- |
| Identification | **Lynx** |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/Mac_OS">MacOS</a></u>**
| Type | Macro | Description |
| -------------- | --------------------- | -------------------------------------- |
| Identification | macintosh | Mac OS 9 |
| Identification | Macintosh | Mac OS 9 |
| Identification | **APPLE** && **MACH** | Mac OS XDefined by GNU C and Intel C++ |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/OS-9">Microware OS-9</a></u>**
| Type | Macro | Description |
| -------------- | ---------- | ------------------------- |
| Identification | \_\_OS9000 | Defined by Ultimate C/C++ |
| Identification | \_OSK | Defined by Ultimate C/C++ |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/Minix">MINIX</a></u>**
| Type | Macro |
| -------------- | --------- |
| Identification | \_\_minix |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/Morphos">MorphOS</a></u>**
| Type | Macro |
| -------------- | ----------- |
| Identification | **MORPHOS** |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/MPE">MPE/iX</a></u>**
| Type | Macro |
| -------------- | --------- |
| Identification | mpeix |
| Identification | \_\_mpexl |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/MS-DOS">MSDOS</a></u>**
| Type | Macro |
| -------------- | --------- |
| Identification | MSDOS |
| Identification | **MSDOS** |
| Identification | \_MSDOS |
| Identification | **DOS** |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/Netbsd">NetBSD</a></u>**
| Type | Macro | Format | Description |
| -------------- | ------------------ | ---------- | -------------------------------------------------------------------------------------------------------------------------- |
| Identification | **NetBSD** | | |
| Version | BSD | | |
| Version | NetBSD'V'\_'R' | | V = VersionR = RevisionMust be included from \<sys/param.h\> |
| Version | **NetBSD_Version** | VVRRAAPP00 | VV = VersionRR = RevisionAA = ReleasePP = PatchFrom NetBSD 1.2D (?) until NetBSD 2.0HMust be included from \<sys/param.h\> |
| Version | **NetBSD_Version** | VVRR00PP00 | VV = VersionRR = RevisionPP = PatchFrom NetBSD 2.99.9Must 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 | |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/NonStop">NonStop</a></u>**
| Type | Macro |
| -------------- | ---------- |
| Identification | \_\_TANDEM |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/Nucleus_RTOS">Nucleus RTOS</a></u>**
| Type | Macro |
| -------------- | ----------- |
| Identification | **nucleus** |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/Openbsd">OpenBSD</a></u>**
| Type | Macro | Format | Description |
| -------------- | --------------- | ------ | -------------------------------------------------------- |
| Identification | **OpenBSD** | | |
| Version | BSD | | |
| Version | OpenBSD'V'\_'R' | | V = VersionR = RevisionMust be included from sys/param.h |
**Example**
| OpenBSD | Macro |
| ------- | ---------- |
| 3.1 | OpenBSD3_1 |
| 3.9 | OpenBSD3_9 |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/OS/2">OS/2</a></u>**
| Type | Macro |
| -------------- | ----------- |
| Identification | OS2 |
| Identification | \_OS2 |
| Identification | **OS2** |
| Identification | **TOS_OS2** |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/Palmos">Palm OS</a></u>**
| Type | Macro | Description |
| -------------- | ---------- | ----------------------------- |
| Identification | **palmos** | Defined by GNU C in PRC-Tools |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/Plan_9_from_Bell_Labs">Plan 9</a></u>**
| Type | Macro |
| -------------- | ------ |
| Identification | EPLAN9 |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/DC/OSx">Pyramid DC/OSx</a></u>**
| Type | Macro |
| -------------- | ----- |
| Identification | pyr |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/QNX">QNX</a></u>**
| Type | Macro | Format | Description |
| -------------- | --------------------- | ---------- | ------------------------------------------------------------------------------------------------------------------------ |
| Identification | **QNX** | | QNX 4.x |
| Identification | **QNXNTO** | | QNX 6.x |
| Version | \_NTO_VERSION | VRR | V = VersionRR = RevisionOnly available when **QNXNTO** is defined.Must be included from sys/neutrino.h/ |
| Version | BBNDK_VERSION_CURRENT | VVRRRRPPPP | V = VersionRRRR = RevisionPPPP = PatchOnly available on Blackberry 10From Blackberry 10.1.0Must be included from bbndk.h |
**Example**
| QNX | \_NTO_VERSION |
| --- | ------------- |
| 6.2 | 620 |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/Reliant_UNIX">Reliant UNIX</a></u>**
| Type | Macro |
| -------------- | ----- |
| Identification | sinux |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/SCO_OpenServer">SCO OpenServer</a></u>**
| Type | Macro | Description |
| -------------- | -------- | ---------------- |
| Identification | M_I386 | Defined by GNU C |
| Identification | M_XENIX | Defined by GNU C |
| Identification | \_SCO_DS | |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/Solaris_Operating_Environment">Solaris</a></u>**
| 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 |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/Stratus_VOS">Stratus VOS</a></u>**
| 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.
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/UNIX_System_V">SVR4 Environment</a></u>**
| Type | Macro | Description |
| -------------- | -------------- | --------------- |
| Identification | **sysv** | |
| Identification | \_\_SVR4 | |
| Identification | **svr4** | |
| Identification | \_SYSTYPE_SVR4 | Defined on IRIX |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/Syllable_Desktop">Syllable</a></u>**
| Type | Macro |
| -------------- | ------------ |
| Identification | **SYLLABLE** |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/Symbian_OS">Symbian OS</a></u>**
| Type | Macro |
| -------------- | ------------- |
| Identification | **SYMBIAN32** |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/Digital_UNIX">Tru64 (OSF/1)</a></u>**
| Type | Macro |
| -------------- | ------- |
| Identification | **osf** |
| Identification | \_\_osf |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/Ultrix">Ultrix</a></u>**
| Type | Macro |
| -------------- | ---------- |
| Identification | ultrix |
| Identification | \_\_ultrix |
| Identification | **ultrix** |
| Identification | unix & vax |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/UNICOS">UNICOS</a></u>**
| Type | Macro | Format | Description |
| -------------- | -------- | ------ | ----------- |
| Identification | \_UNICOS | | |
| Version | \_UNICOS | V | V = Version |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/Unicos">UNICOS/mp</a></u>**
| Type | Macro | Description |
| -------------- | ---------------- | ----------- |
| Identification | \_CRAY\_\_crayx1 | |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/Unix">UNIX Environment</a></u>**
| 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.
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/UnixWare">UnixWare</a></u>**
| Type | Macro |
| -------------- | ----------- |
| Identification | sco |
| Identification | \_UNIXWARE7 |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/UWIN">U/Win Environment</a></u>**
| Type | Macro |
| -------------- | ------ |
| Identification | \_UWIN |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/Vms">VMS</a></u>**
| Type | Macro | Format | Description |
| -------------- | ----------- | --------- | ------------------------------------------------------------------------------------------------ |
| Identification | VMS | | |
| Identification | \_\_VMS | | |
| Version | \_\_VMS_VER | VVRREPPTT | VV = VersionRR = RevisionE = Edit numberPP = Patch (01 = A, ... 26 = Z)TT = Type (22 = official) |
**Example**
| VMS | \_\_VMS_VER |
| ------ | ----------- |
| 6.1 | 60100022 |
| 6.2 | 60200022 |
| 6.2-1I | 60210922 |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/VxWorks">VxWorks</a></u>**
| 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 | VersionMust be included from version.h | |
| Version | \_WRS_VXWORKS_MINOR | RevisionMust be included from version.h | |
| Version | \_WRS_VXWORKS_MAINT | Patch/maintenanceMust 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 |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/Category:Microsoft_Windows">Windows</a></u>**
| 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++ |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/Windows_CE">Windows CE</a></u>**
| Type | Macro | Format | Description |
| -------------- | ------------------ | ------ | ------------------------------------- |
| Identification | \_WIN32_WCE | | Defined by Embedded Visual Studio C++ |
| Version | \_WIN32_WCE | VRR | V = VersionR = Revision |
| Identification | WIN32*PLATFORM*'P' | | P = Platform |
| Version | WIN32*PLATFORM*'P' | V | P = PlatformV = 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 |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/Bristol_Technology_Inc.">Wind/U Environment</a></u>**
| Type | Macro | Format | Description |
| -------------- | -------------- | -------- | ----------------------------------- |
| Identification | \_WINDU_SOURCE | | |
| Version | \_WINDU_SOURCE | 0xVVRRPP | VV = VersionRR = RevisionPP = Patch |
**Example**
| Wind/U | \_WINDU_SOURCE |
| ------ | -------------- |
| 3.1.2 | 0x030102 |
**<u><a rel="nofollow noreferrer" class="wrap external" href="http://en.wikipedia.org/wiki/Z/OS">z/OS</a></u>**
| Type | Macro | Description |
| -------------- | ----------- | ----------- |
| Identification | **MVS** | Host |
| Identification | **HOS_MVS** | Host |
| Identification | **TOS_MVS** | Target |
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