{"id":72,"date":"2017-06-21T20:38:03","date_gmt":"2017-06-21T12:38:03","guid":{"rendered":"http:\/\/49.232.131.197\/?p=72"},"modified":"2017-06-25T00:23:59","modified_gmt":"2017-06-24T16:23:59","slug":"cc","status":"publish","type":"post","link":"http:\/\/www.sourcecool.com\/index.php\/2017\/06\/21\/cc\/","title":{"rendered":"C\/C++\u8de8\u5e73\u53f0\u7684\u7684\u9884\u7f16\u8bd1\u5b8f"},"content":{"rendered":"

\u6211\u4eec\u5728\u7f16\u8bd1\u4e00\u4e9b\u8de8\u5e73\u53f0\u7684\u7a0b\u5e8f\u7684\u65f6\u5019\u96be\u514d\u4f1a\u9047\u5230_WIN32 \u00a0__linux__\u4ec0\u4e48\u4e4b\u7c7b\u7684SDK\u6216\u8005\u7f16\u8bd1\u5668\u73af\u5883\u9884\u5b9a\u4e49\u7684\u5b8f\u3002\u6709\u5f88\u591a\uff0c\u4e4b\u524d\u8fd8\u5206\u4e0d\u6e05_WIN32 \u548cWIN32\u7684\u533a\u522b\u3002\u4e0d\u8fc7\u8fd9\u91cc\u8fd8\u597d\u6709\u4e2a\u5217\u8868\uff0c\u505a\u4e2a\u5907\u5fd8\u3002<\/p>\n

 <\/p>\n

\n

Please send updates\/corrections to\u00a0predef-contribute<\/a>.<\/p>\n

AIX<\/a><\/h2>\n\n\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\nDescription<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\n_AIX<\/code><\/td>\n<\/td>\n<\/tr>\n
Version<\/td>\n_AIX'VR'<\/code><\/td>\nV = Version
\nR = Revision<\/td>\n<\/tr>\n
Identification<\/td>\n__TOS_AIX__<\/code><\/td>\nDefined by xlC<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
Example<\/h5>\n

If\u00a0_AIX<\/code>\u00a0is 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\u00a0_AIX43<\/code>\u00a0is defined, then\u00a0_AIX41<\/code>\u00a0will also be defined.<\/p>\n\n\n\n\n\n\n\n
AIX Version<\/th>\nMacro<\/th>\n<\/tr>\n<\/thead>\n
3.2.x<\/td>\n_AIX3<\/code>
\n_AIX32<\/code><\/td>\n<\/tr>\n
4.1<\/td>\n_AIX41<\/code><\/td>\n<\/tr>\n
4.3<\/td>\n_AIX43<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Android<\/a><\/h2>\n\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\nFormat<\/th>\nDescription<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\n__ANDROID__<\/code><\/td>\n<\/td>\n<\/td>\n<\/tr>\n
Version<\/td>\n__ANDROID_API__<\/code><\/td>\nV<\/td>\nV = API Version<\/p>\n

Must be included from\u00a0<android\/api-level.h><\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Notice that Android is based on Linux, and that the Linux macros also are defined for Android.<\/p>\n

Example<\/h5>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Android Version<\/th>\n__ANDROID_API__<\/code><\/th>\n<\/tr>\n<\/thead>\n
1.0<\/td>\n1<\/td>\n<\/tr>\n
1.1<\/td>\n2<\/td>\n<\/tr>\n
1.5<\/td>\n3<\/td>\n<\/tr>\n
1.6<\/td>\n4<\/td>\n<\/tr>\n
2.0<\/td>\n5<\/td>\n<\/tr>\n
2.0.1<\/td>\n6<\/td>\n<\/tr>\n
2.1<\/td>\n7<\/td>\n<\/tr>\n
2.2<\/td>\n8<\/td>\n<\/tr>\n
2.3<\/td>\n9<\/td>\n<\/tr>\n
2.3.3<\/td>\n10<\/td>\n<\/tr>\n
3.0<\/td>\n11<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Amdahl UTS<\/a><\/h2>\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\nUTS<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

AmigaOS<\/a><\/h2>\n\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\nDescription<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\nAMIGA<\/code><\/td>\n<\/td>\n<\/tr>\n
Identification<\/td>\n__amigaos__<\/code><\/td>\nDefined by GNU C<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Apollo AEGIS<\/a><\/h2>\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\naegis<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Apollo Domain\/OS<\/a><\/h2>\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\napollo<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Bada<\/a><\/h2>\n

Based on Nucleus OS.<\/p>\n

BeOS<\/a><\/h2>\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\n__BEOS__<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Blue Gene<\/a><\/h2>\n\n\n\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\nDescription<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\n__bg__<\/code><\/td>\nAll Blue Gene systems<\/p>\n

Defined by XL C\/C++ and GNU C<\/td>\n<\/tr>\n

Version<\/td>\n__bgq__<\/code><\/td>\nBlue Gene\/Q<\/p>\n

Defined for XL C\/C++ and GNU C<\/td>\n<\/tr>\n

Identification<\/td>\n__THW_BLUEGENE__<\/code><\/td>\nAll Blue Gene systems<\/p>\n

Defined by XL C\/C++<\/td>\n<\/tr>\n

Version<\/td>\n__TOS_BGQ__<\/code><\/td>\nBlue Gene\/Q<\/p>\n

Defined by XL C\/C++<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

BSD Environment<\/a><\/h2>\n\n\n\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\nFormat<\/th>\nDescription<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\n__FreeBSD__<\/code>
\n__NetBSD__<\/code>
\n__OpenBSD__<\/code>
\n__bsdi__<\/code>
\n__DragonFly__<\/code><\/td>\n		<\/td>\n<\/td>\n<\/tr>\n
Version<\/td>\nBSD<\/code><\/td>\nYYYYMM<\/td>\nYYYY = Year
\nMM = MonthMust be included from\u00a0<sys\/param.h><\/code><\/td>\n<\/tr>\n
Version<\/td>\nBSD4_2<\/code>
\nBSD4_3<\/code>
\nBSD4_4<\/code><\/td>\n		<\/td>\nMust be included from\u00a0<sys\/param.h><\/code><\/td>\n<\/tr>\n
Identification<\/td>\n_SYSTYPE_BSD<\/code><\/td>\n<\/td>\nDefined by DEC C<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
Example<\/h5>\n\n\n\n\n\n\n\n
Version<\/th>\nBSD<\/code><\/th>\nMacro<\/th>\n<\/tr>\n<\/thead>\n
4.3 Net2<\/td>\n199103<\/td>\n<\/td>\n<\/tr>\n
4.4<\/td>\n199306<\/td>\nBSD4_4<\/code><\/td>\n<\/tr>\n
4.4BSD-Lite2<\/td>\n199506<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

BSD\/OS<\/a><\/h2>\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\n__bsdi__<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

ConvexOS<\/a><\/h2>\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\n__convex__<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Cygwin Environment<\/a><\/h2>\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\n__CYGWIN__<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

DG\/UX<\/a><\/h2>\n\n\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\nDGUX<\/code><\/td>\n<\/tr>\n
Identification<\/td>\n__DGUX__<\/code><\/td>\n<\/tr>\n
Identification<\/td>\n__dgux__<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

DragonFly<\/a><\/h2>\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\n__DragonFly__<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

DYNIX\/ptx<\/a><\/h2>\n\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\n_SEQUENT_<\/code><\/td>\n<\/tr>\n
Identification<\/td>\nsequent<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

eCos<\/a><\/h2>\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\n__ECOS<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

EMX Environment<\/a><\/h2>\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\n__EMX__<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

FreeBSD<\/a><\/h2>\n\n\n\n\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\nFormat<\/th>\nDescription<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\n__FreeBSD__<\/code><\/td>\n<\/td>\n<\/td>\n<\/tr>\n
Identification<\/td>\n__FreeBSD_kernel__<\/code><\/td>\n<\/td>\nFrom FreeBSD 8.3, 9.1, and 10.0.1<\/a><\/td>\n<\/tr>\n
Version<\/td>\nBSD<\/code><\/td>\n<\/td>\n<\/td>\n<\/tr>\n
Version<\/td>\n__FreeBSD__<\/code><\/td>\nV<\/td>\nV = Version<\/td>\n<\/tr>\n
Version<\/td>\n__FreeBSD_version<\/code><\/td>\n?<\/td>\nMust be included from\u00a0<osreldate.h><\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
Example<\/h5>\n\n\n\n\n\n\n\n\n\n\n
FreeBSD<\/th>\n__FreeBSD__<\/code><\/th>\n__FreeBSD_version<\/code><\/th>\n<\/tr>\n<\/thead>\n
1.x<\/td>\n1<\/td>\n<\/td>\n<\/tr>\n
2.0-RELEASE<\/td>\n2<\/td>\n119411<\/td>\n<\/tr>\n
2.2-RELEASE<\/td>\n2<\/td>\n220000<\/td>\n<\/tr>\n
3.0-RELEASE<\/td>\n3<\/td>\n300005<\/td>\n<\/tr>\n
4.0-RELEASE<\/td>\n4<\/td>\n400017<\/td>\n<\/tr>\n
4.5-RELEASE<\/td>\n4<\/td>\n450000<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

For more information see the\u00a0FreeBSD porters handbook<\/a>.<\/p>\n

GNU aka\u00a0GNU\/Hurd<\/a><\/h2>\n

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.<\/p>\n\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\n__GNU__<\/code>\u00a01<\/a><\/td>\n<\/tr>\n
Identification<\/td>\n__gnu_hurd__<\/code>\u00a01<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

GNU\/kFreeBSD<\/a><\/h2>\n

GNU\/kFreeBSD is one of the Debian distros that is based on the FreeBSD kernel rather than the Linux or Hurd kernels.<\/p>\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\n__FreeBSD_kernel__<\/code>\u00a0&&<\/code>\u00a0__GLIBC__<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Notice that FreeBSD also defines\u00a0__FreeBSD_kernel__<\/code>\u00a0so the\u00a0__GLIBC__<\/code>\u00a0macro must be checked to distinguish it.<\/p>\n

GNU\/Linux<\/a><\/h2>\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\n__gnu_linux__<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

HI-UX MPP<\/a><\/h2>\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\n__hiuxmpp<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

HP-UX<\/a><\/h2>\n\n\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\nDescription<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\n_hpux<\/code><\/td>\nDefined by HP UPC<\/td>\n<\/tr>\n
Identification<\/td>\nhpux<\/code><\/td>\n<\/td>\n<\/tr>\n
Identification<\/td>\n__hpux<\/code><\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

IBM OS\/400<\/a><\/h2>\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\n__OS400__<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

INTEGRITY<\/a><\/h2>\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\n__INTEGRITY<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Interix Environment<\/a><\/h2>\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\nDescription<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\n__INTERIX<\/code><\/td>\nDefined by GNU C and Visual Studio<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

IRIX<\/a><\/h2>\n\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\nsgi<\/code><\/td>\n<\/tr>\n
Identification<\/td>\n__sgi<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Linux kernel<\/a><\/h2>\n

Systems based on the Linux kernel define these macros. There are two major Linux-based operating systems:\u00a0GNU\/Linux<\/a>\u00a0andAndroid<\/a>, and numerous others like\u00a0\u00c5ngstr\u00f6m<\/a>\u00a0or\u00a0OpenEmbedded<\/a><\/p>\n\n\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\nDescription<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\n__linux__<\/code><\/td>\n1<\/a><\/td>\n<\/tr>\n
Identification<\/td>\nlinux<\/code><\/td>\nObsolete (not POSIX compliant)<\/td>\n<\/tr>\n
Identification<\/td>\n__linux<\/code><\/td>\nObsolete (not POSIX compliant)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

LynxOS<\/a><\/h2>\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\n__Lynx__<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

MacOS<\/a><\/h2>\n\n\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\nDescription<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\nmacintosh<\/code><\/td>\nMac OS 9<\/td>\n<\/tr>\n
Identification<\/td>\nMacintosh<\/code><\/td>\nMac OS 9<\/td>\n<\/tr>\n
Identification<\/td>\n__APPLE__<\/code>\u00a0&&<\/code>\u00a0__MACH__<\/code><\/td>\nMac OS X<\/p>\n

Defined by GNU C and Intel C++<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Microware OS-9<\/a><\/h2>\n\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\nDescription<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\n__OS9000<\/code><\/td>\nDefined by Ultimate C\/C++<\/td>\n<\/tr>\n
Identification<\/td>\n_OSK<\/code><\/td>\nDefined by Ultimate C\/C++<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

MINIX<\/a><\/h2>\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\n__minix<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

MorphOS<\/a><\/h2>\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\n__MORPHOS__<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

MPE\/iX<\/a><\/h2>\n\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\nmpeix<\/code><\/td>\n<\/tr>\n
Identification<\/td>\n__mpexl<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

MSDOS<\/a><\/h2>\n\n\n\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\nMSDOS<\/code><\/td>\n<\/tr>\n
Identification<\/td>\n__MSDOS__<\/code><\/td>\n<\/tr>\n
Identification<\/td>\n_MSDOS<\/code><\/td>\n<\/tr>\n
Identification<\/td>\n__DOS__<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

NetBSD<\/a><\/h2>\n\n\n\n\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\nFormat<\/th>\nDescription<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\n__NetBSD__<\/code><\/td>\n<\/td>\n<\/td>\n<\/tr>\n
Version<\/td>\nBSD<\/code><\/td>\n<\/td>\n<\/td>\n<\/tr>\n
Version<\/td>\nNetBSD'V'_'R'<\/code><\/td>\n<\/td>\nV = Version
\nR = RevisionMust be included from\u00a0<sys\/param.h><\/code><\/td>\n<\/tr>\n
Version<\/td>\n__NetBSD_Version__<\/code><\/td>\nVVRRAAPP00<\/td>\nVV = Version
\nRR = Revision
\nAA = Release
\nPP = PatchFrom NetBSD 1.2D (?) until NetBSD 2.0HMust be included from\u00a0<sys\/param.h><\/code><\/td>\n<\/tr>\n
Version<\/td>\n__NetBSD_Version__<\/code><\/td>\nVVRR00PP00<\/td>\nVV = Version
\nRR = Revision
\nPP = PatchFrom NetBSD 2.99.9Must be included from\u00a0<sys\/param.h><\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
Example<\/h5>\n\n\n\n\n\n\n\n\n\n\n
NetBSD<\/th>\n__NetBSD_Version__<\/code><\/th>\nMacro<\/th>\n<\/tr>\n<\/thead>\n
0.8<\/td>\n<\/td>\nNetBSD0_8<\/code><\/td>\n<\/tr>\n
0.9<\/td>\n<\/td>\nNetBSD0_9<\/code><\/td>\n<\/tr>\n
1.0<\/td>\n<\/td>\nNetBSD1_0<\/code>\u00a0= 1<\/td>\n<\/tr>\n
1.0A<\/td>\n<\/td>\nNetBSD1_0<\/code>\u00a0= 2<\/td>\n<\/tr>\n
1.2D<\/td>\n102040000<\/td>\n<\/td>\n<\/tr>\n
1.2.1<\/td>\n102000100<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

NonStop<\/a><\/h2>\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\n__TANDEM<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Nucleus RTOS<\/a><\/h2>\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\n__nucleus__<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

OpenBSD<\/a><\/h2>\n\n\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\nFormat<\/th>\nDescription<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\n__OpenBSD__<\/code><\/td>\n<\/td>\n<\/td>\n<\/tr>\n
Version<\/td>\nBSD<\/code><\/td>\n<\/td>\n<\/td>\n<\/tr>\n
Version<\/td>\nOpenBSD'V'_'R'<\/code><\/td>\n<\/td>\nV = Version
\nR = RevisionMust be included from\u00a0<sys\/param.h><\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
Example<\/h5>\n\n\n\n\n\n\n
OpenBSD<\/th>\nMacro<\/th>\n<\/tr>\n<\/thead>\n
3.1<\/td>\nOpenBSD3_1<\/code><\/td>\n<\/tr>\n
3.9<\/td>\nOpenBSD3_9<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

OS\/2<\/a><\/h2>\n\n\n\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\nOS2<\/code><\/td>\n<\/tr>\n
Identification<\/td>\n_OS2<\/code><\/td>\n<\/tr>\n
Identification<\/td>\n__OS2__<\/code><\/td>\n<\/tr>\n
Identification<\/td>\n__TOS_OS2__<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Palm OS<\/a><\/h2>\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\nDescription<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\n__palmos__<\/code><\/td>\nDefined by GNU C in\u00a0PRC-Tools<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Plan 9<\/a><\/h2>\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\nEPLAN9<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Pyramid DC\/OSx<\/a><\/h2>\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\npyr<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

QNX<\/a><\/h2>\n\n\n\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\nFormat<\/th>\nDescription<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\n__QNX__<\/code><\/td>\n<\/td>\nQNX 4.x<\/td>\n<\/tr>\n
Identification<\/td>\n__QNXNTO__<\/code><\/td>\n<\/td>\nQNX 6.x<\/td>\n<\/tr>\n
Version<\/td>\n_NTO_VERSION<\/code><\/td>\nVRR<\/td>\nV = Version
\nRR = RevisionOnly available when\u00a0__QNXNTO__<\/code>\u00a0is defined.Must be included from\u00a0<sys\/neutrino.h><\/code><\/td>\n<\/tr>\n
Version<\/td>\nBBNDK_VERSION_CURRENT<\/code><\/td>\nVVRRRRPPPP<\/td>\nV = Version
\nRRRR = Revision
\nPPPP = PatchOnly available on\u00a0Blackberry 10<\/a>From Blackberry 10.1.0<\/p>\n

Must be included from\u00a0<bbndk.h><\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Example<\/h5>\n\n\n\n\n\n
QNX<\/th>\n_NTO_VERSION<\/code><\/th>\n<\/tr>\n<\/thead>\n
6.2<\/td>\n620<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Reliant UNIX<\/a><\/h2>\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\nsinux<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

SCO OpenServer<\/a><\/h2>\n\n\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\nDescription<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\nM_I386<\/code><\/td>\nDefined by GNU C<\/td>\n<\/tr>\n
Identification<\/td>\nM_XENIX<\/code><\/td>\nDefined by GNU C<\/td>\n<\/tr>\n
Identification<\/td>\n_SCO_DS<\/code><\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Solaris<\/a><\/h2>\n\n\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\nDescription<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\nsun<\/code><\/td>\n<\/td>\n<\/tr>\n
Identification<\/td>\n__sun<\/code><\/td>\n<\/td>\n<\/tr>\n
Version<\/td>\n__'System'_'Version'<\/code><\/td>\nSystem =\u00a0uname -s<\/code>
\nVersion =\u00a0uname -r<\/code>
\nAny illegal character is replaced by an underscore.Defined by Sun Studio<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Use the SVR4 macros to distinguish between Solaris and SunOS.<\/p>\n

#if defined(sun) || defined(__sun)# if defined(__SVR4) || defined(__svr4__)\/* Solaris *\/# else\/* SunOS *\/# endif#endif<\/div>\n
Example<\/h5>\n\n\n\n\n\n\n
Solaris<\/th>\nMacro<\/th>\n<\/tr>\n<\/thead>\n
2.7<\/td>\n__SunOS_5_7<\/code><\/td>\n<\/tr>\n
8<\/td>\n__SunOS_5_8<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Stratus VOS<\/a><\/h2>\n\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\nFormat<\/th>\nDescription<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\n__VOS__<\/code><\/td>\n<\/td>\n<\/td>\n<\/tr>\n
Version<\/td>\n__VOS__<\/code><\/td>\nV<\/td>\nV = Version<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Notice that the\u00a0__VOS__<\/code>\u00a0macro is defined by the compiler, but as several compilers can co-exist in the same OS release, the version number is not reliable.<\/p>\n

SVR4 Environment<\/a><\/h2>\n\n\n\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\nDescription<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\n__sysv__<\/code><\/td>\n<\/td>\n<\/tr>\n
Identification<\/td>\n__SVR4<\/code><\/td>\n<\/td>\n<\/tr>\n
Identification<\/td>\n__svr4__<\/code><\/td>\n<\/td>\n<\/tr>\n
Identification<\/td>\n_SYSTYPE_SVR4<\/code><\/td>\nDefined on IRIX<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Syllable<\/a><\/h2>\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\n__SYLLABLE__<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Symbian OS<\/a><\/h2>\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\n__SYMBIAN32__<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Tru64 (OSF\/1)<\/a><\/h2>\n\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\n__osf__<\/code><\/td>\n<\/tr>\n
Identification<\/td>\n__osf<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Ultrix<\/a><\/h2>\n\n\n\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\nultrix<\/code><\/td>\n<\/tr>\n
Identification<\/td>\n__ultrix<\/code><\/td>\n<\/tr>\n
Identification<\/td>\n__ultrix__<\/code><\/td>\n<\/tr>\n
Identification<\/td>\nunix<\/code>\u00a0&\u00a0vax<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

UNICOS<\/a><\/h2>\n\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\nFormat<\/th>\nDescription<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\n_UNICOS<\/code><\/td>\n<\/td>\n<\/td>\n<\/tr>\n
Version<\/td>\n_UNICOS<\/code><\/td>\nV<\/td>\nV = Version<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

UNICOS\/mp<\/a><\/h2>\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\nDescription<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\n_CRAY<\/code>
\n__crayx1<\/code><\/td>\n		<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

UNIX Environment<\/a><\/h2>\n\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\n__unix__<\/code><\/td>\n<\/tr>\n
Identification<\/td>\n__unix<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

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.<\/p>\n

UnixWare<\/a><\/h2>\n\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\nsco<\/code><\/td>\n<\/tr>\n
Identification<\/td>\n_UNIXWARE7<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

U\/Win Environment<\/a><\/h2>\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\n_UWIN<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

VMS<\/a><\/h2>\n\n\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\nFormat<\/th>\nDescription<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\nVMS<\/code><\/td>\n<\/td>\n<\/td>\n<\/tr>\n
Identification<\/td>\n__VMS<\/code><\/td>\n<\/td>\n<\/td>\n<\/tr>\n
Version<\/td>\n__VMS_VER<\/code><\/td>\nVVRREPPTT<\/td>\nVV = Version
\nRR = Revision
\nE = Edit number
\nPP = Patch (01 = A, … 26 = Z)
\nTT = Type (22 = official)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
Example<\/h5>\n\n\n\n\n\n\n\n
VMS<\/th>\n__VMS_VER<\/code><\/th>\n<\/tr>\n<\/thead>\n
6.1<\/td>\n60100022<\/td>\n<\/tr>\n
6.2<\/td>\n60200022<\/td>\n<\/tr>\n
6.2-1I<\/td>\n60210922<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

VxWorks<\/a><\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\nDescription<\/th>\n<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\n__VXWORKS__<\/code><\/td>\nDefined by GNU C and Diab (from ?)<\/td>\n<\/td>\n<\/tr>\n
Identification<\/td>\n__vxworks<\/code><\/td>\nDefined by GNU C and Diab (from ?)<\/td>\n<\/td>\n<\/tr>\n
Version<\/td>\n_WRS_VXWORKS_MAJOR<\/code><\/td>\nVersion<\/p>\n

Must be included from\u00a0<version.h><\/code><\/td>\n

<\/td>\n<\/tr>\n
Version<\/td>\n_WRS_VXWORKS_MINOR<\/code><\/td>\nRevision<\/p>\n

Must be included from\u00a0<version.h><\/code><\/td>\n

<\/td>\n<\/tr>\n
Version<\/td>\n_WRS_VXWORKS_MAINT<\/code><\/td>\nPatch\/maintenance<\/p>\n

Must be included from\u00a0<version.h><\/code><\/td>\n

<\/td>\n<\/tr>\n
Mode<\/td>\n__RTP__<\/code><\/td>\nFor real-time mode<\/td>\n<\/td>\n<\/tr>\n
Mode<\/td>\n_WRS_KERNEL<\/code><\/td>\nFor kernel mode<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
Example<\/h5>\n\n\n\n\n\n
VxWorks<\/th>\n_WRS_VXWORKS_MAJOR<\/code><\/th>\n_WRS_VXWORKS_MINOR<\/code><\/th>\n_WRS_VXWORKS_MAINT<\/code><\/th>\n<\/tr>\n<\/thead>\n
6.2<\/td>\n6<\/td>\n2<\/td>\n0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Windows<\/a><\/h2>\n\n\n\n\n\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\nDescription<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\n_WIN16<\/code><\/td>\nDefined for 16-bit environments\u00a01<\/a><\/td>\n<\/tr>\n
Identification<\/td>\n_WIN32<\/code><\/td>\nDefined for both 32-bit and 64-bit environments\u00a01<\/a><\/td>\n<\/tr>\n
Identification<\/td>\n_WIN64<\/code><\/td>\nDefined for 64-bit environments\u00a01<\/a><\/td>\n<\/tr>\n
Identification<\/td>\n__WIN32__<\/code><\/td>\nDefined by Borland C++<\/td>\n<\/tr>\n
Identification<\/td>\n__TOS_WIN__<\/code><\/td>\nDefined by xlC<\/td>\n<\/tr>\n
Identification<\/td>\n__WINDOWS__<\/code><\/td>\nDefined by Watcom C\/C++<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Windows CE<\/a><\/h2>\n\n\n\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\nFormat<\/th>\nDescription<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\n_WIN32_WCE<\/code><\/td>\n<\/td>\nDefined by Embedded Visual Studio C++<\/td>\n<\/tr>\n
Version<\/td>\n_WIN32_WCE<\/code><\/td>\nVRR<\/td>\nV = Version
\nR = Revision<\/td>\n<\/tr>\n
Identification<\/td>\nWIN32_PLATFORM_'P'<\/code><\/td>\n<\/td>\nP = Platform<\/td>\n<\/tr>\n
Version<\/td>\nWIN32_PLATFORM_'P'<\/code><\/td>\nV<\/td>\nP = Platform
\nV = Version<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
Example<\/h5>\n\n\n\n\n\n\n\n\n\n\n\n
Version<\/th>\n_WIN32_WCE<\/code><\/th>\n<\/tr>\n<\/thead>\n
2.01<\/td>\n201<\/td>\n<\/tr>\n
2.11<\/td>\n211<\/td>\n<\/tr>\n
3.0<\/td>\n300<\/td>\n<\/tr>\n
4.0<\/td>\n400<\/td>\n<\/tr>\n
4.1<\/td>\n410<\/td>\n<\/tr>\n
4.2<\/td>\n420<\/td>\n<\/tr>\n
5.0<\/td>\n501<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n\n\n\n\n
Platform<\/th>\nMacro<\/th>\nValue<\/th>\n<\/tr>\n<\/thead>\n
H\/PC 2000<\/td>\nWIN32_PLATFORM_HPC2000<\/code><\/td>\n<\/td>\n<\/tr>\n
H\/PC Pro 2.11<\/td>\nWIN32_PLATFORM_HPCPRO<\/code><\/td>\n211<\/td>\n<\/tr>\n
H\/PC Pro 3.0<\/td>\nWIN32_PLATFORM_HPCPRO<\/code><\/td>\n300<\/td>\n<\/tr>\n
Pocket PC<\/td>\nWIN32_PLATFORM_PSPC<\/code><\/td>\n1<\/td>\n<\/tr>\n
Pocket PC 2002<\/td>\nWIN32_PLATFORM_PSPC<\/code><\/td>\n310<\/td>\n<\/tr>\n
Windows Mobile 2003<\/td>\nWIN32_PLATFORM_PSPC<\/code><\/td>\n400<\/td>\n<\/tr>\n
Smartphone 2002<\/td>\nWIN32_PLATFORM_WFSP<\/code><\/td>\n100<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Wind\/U Environment<\/a><\/h2>\n\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\nFormat<\/th>\nDescription<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\n_WINDU_SOURCE<\/code><\/td>\n<\/td>\n<\/td>\n<\/tr>\n
Version<\/td>\n_WINDU_SOURCE<\/code><\/td>\n0xVVRRPP<\/td>\nVV = Version
\nRR = Revision
\nPP = Patch<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
Example<\/h5>\n\n\n\n\n\n
Wind\/U<\/th>\n_WINDU_SOURCE<\/code><\/th>\n<\/tr>\n<\/thead>\n
3.1.2<\/td>\n0x030102<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

z\/OS<\/a><\/h2>\n\n\n\n\n\n\n\n
Type<\/th>\nMacro<\/th>\nDescription<\/th>\n<\/tr>\n<\/thead>\n
Identification<\/td>\n__MVS__<\/code><\/td>\nHost<\/td>\n<\/tr>\n
Identification<\/td>\n__HOS_MVS__<\/code><\/td>\nHost<\/td>\n<\/tr>\n
Identification<\/td>\n__TOS_MVS__<\/code><\/td>\nTarget<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

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