Compilers

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ACC

Type	Macro
Identification	_ACC_

Altium MicroBlaze C

Type	Macro	Format	Description
Identification	__CMB__
Version	__VERSION__	VRRR	V=Version RRR=Revision
Version	__REVISION__	P	P=Patch
Version	__BUILD__	VRRRPPP	Build number

Example

Altium MicroBlaze C	__VERSION__	__REVISION__	__BUILD__
1.0r2	1000	2
1.22.2			1022001

Altium C-to-Hardware

Type	Macro	Format	Description
Identification	__CHC__
Version	__VERSION__	VRRR	V=Version RRR=Revision
Version	__REVISION__	P	P=Patch Beta releases set this to -1
Version	__BUILD__	VRRRPPP	Build number

Example

Altium C-to-Hardware	__VERSION__	__REVISION__	__BUILD__
2.1r1	2001	1
1.22.2			1022001

Amsterdam Compiler Kit

Type	Macro
Identification	__ACK__

ARM Compiler

Type	Macro	Format	Description
Identification	__CC_ARM
Version	__ARMCC_VERSION	VRPBBB	V = Version R = Revision P = Patch BBB = Build

Notice that the __ARMCC_VERSION macro is also used as version indicator for Norcroft C, but that the format is different.

Example

Realview C	__ARMCC_VERSION
3.0	300503

Aztec C

Type	Macro	Format	Description
Identification	AZTEC_C __AZTEC_C__
Version	__VERSION	VRR	V = Version RR = Revision

Example

Aztec C	__VERSION
5.20	520

Borland C++

Type	Macro	Format
Identification	__BORLANDC__
Version	__BORLANDC__	?
Identification	__CODEGEARC__
Version	__CODEGEARC__	From C++ Builder 2006

Example

Borland C++	C++ Builder	__BORLANDC__	__CODEGEARC__
2.0		0x200
3.0		0x400
3.1		0x410
4.0		0x452
5.0		0x500
5.02	1.0	0x520
	3.0	0x530
	4.0	0x540
5.5	5.0	0x550
5.51		0x551
5.6.4		0x562
	2006	0x570	0x570
	2007	0x590	0x590
	2009	0x613	0x613
	2010	0x621	0x621
	XE	0x630	0x630
	XE2	0x640	0x640
	XE3	0x650	0x650
	XE4	0x660	0x660

CC65

Type	Macro	Format	Description
Identification	__CC65__
Version	__CC65__	0xVRP	V = Version R = Revision P = Patch

Example

Version	__CC65__
2.10.1	0x2A1

Clang

Type	Macro	Format	Description
Identification	__clang__
Version	__clang_major__	V	V = Major version
Version	__clang_minor__	R	R = Minor version
Version	__clang_patchlevel__	P	P = Patch level
Version	__clang_version__	V.R.P (tags/RELEASE_VRP/final)	V = Major version R = Minor version P = Patch level

Notice that clang also defines the GNU C version macros, but you should use the clang feature checking macros to detect the availability of various features.

The values of the __clang_major__, __clang_minor__, and __clang_patchlevel__ macros are not consistent across distributions of the Clang compiler. For example, the Clang 3.1 distribution available at http://clang.llvm.org defines __clang_major__ and __clang_minor__ as 3 and 1 respectively. The version of Clang distributed with Apple XCode 4.4 is branded as "Apple Clang 4.0" and derives from the open source Clang 3.1 distribution, but defines these macros with the values 4 and 0 respectively. Apple's Clang distribution can be identified by the presence of the __apple_build_version__ macro.

The meaning of the __clang__ and related macros has changed subtly over the years, from identifying the Clang compiler to identifying compilers that use the Clang infrastructure. For example, IBM XL C/C++ also defines these macros. IBM XL C/C++ for Linux defines them starting from version 13.1.1. IBM XL C/C++ for AIX defines them starting from version 16.1.

Comeau C++

Type	Macro	Format	Description
Identification	__COMO__
Version	__COMO_VERSION__	VRR	V = Version RR = Revision

Example

Comeau C++	__COMO_VERSION__
2.3	230

Compaq C/C++

Type	Macro	Format	Description
Identification	__DECC		C compiler
Version	__DECC_VER	VVRRTPPPP	VV = Version RR = Revision T = Type (9 = official) PPPP = Patch
Identification	__DECCXX		C++ compiler
Version	__DECCXX_VER	As __DECC_VER
Identification	__VAXC		Obsolete
Identification	VAXC		Obsolete

Example

Compaq C/C++	__DECC_VER
6.0-001	60090001

Convex C

Type	Macro
Identification	__convexc__

CompCert

Type	Macro
Identification	__COMPCERT__

Coverity C/C++ Static Analyzer

Type	Macro
Identification	__COVERITY__

Cray C

Type	Macro	Description
Identification	_CRAYC
Version	_RELEASE	Version
Version	_RELEASE_MINOR	Revision

Diab C/C++

Type	Macro	Format	Description
Identification	__DCC__	1
Version	__VERSION_NUMBER__	VRPP	V = Version R = Revision PP = Patch

Example

Diab C/C++	__VERSION_NUMBER__
4.4g	4426

DICE C

Type	Macro
Identification	_DICE

Digital Mars

Type	Macro	Format	Description
Identification	__DMC__
Version	__DMC__	0xVRP	V = Version R = Revision P = Patch

Example

Digital Mars	__DMC__
7.0	0x700
7.2	0x720
8.0	0x800

Dignus Systems/C++

Type	Macro	Format	Description
Identification	__SYSC__
Version	__SYSC_VER__	VRRPP	V = Version RR = Revision PP = Patch

Example

Systems/C	__SYSC_VER__
1.80.32	18032

DJGPP

Type	Macro	Description
Identification	__DJGPP__
Version	__DJGPP__	Version
Version	__DJGPP_MINOR__	Revision
Identification	__GO32__	Defined by DJGPP 1.x

Example

DJGPP	__DJGPP__	__DJGPP_MINOR__
2.01	2	1

EDG C++ Frontend

Type	Macro	Format	Description
Identification	__EDG__
Version	__EDG_VERSION__	VRR	V = Version RR = Revision

Example

EDG C++	__EDG_VERSION__
2.30	230
2.45	245

EKOPath

Type	Macro	Description
Identification	__PATHCC__
Version	__PATHCC__	Version
Version	__PATHCC_MINOR__	Revision
Version	__PATHCC_PATCHLEVEL__	Patch

Example

EKOPath	__PATHCC__	__PATHCC_MINOR__	__PATHCC_PATCHLEVEL__
2.0	2	0	0

Fujitsu C++

Type	Macro
Identification	__FCC_VERSION

GCC C/C++

Type	Macro	Description
Identification	__GNUC__
Version	__GNUC__	Version
Version	__GNUC_MINOR__	Revision
Version	__GNUC_PATCHLEVEL__	Patch (introduced in version 3.0)

Notice that the meaning of the __GNUC__ macro has changed subtly over the years, from identifying the GNU C/C++ compiler to identifying any compiler that implements the GNU compiler extensions (see the Feature request - a macro defined for GCC discussion for further information). For example, the Intel C++ on Linux also defines these macros from version 8.1 (see the Intel C++ Compiler 8.1 for Linux Release Notes and Intel Compilers for Linux: Compatibility with GNU Compilers.)

Example

GNU C/C++	__GNUC__	__GNUC_MINOR__	__GNUC_PATCHLEVEL__
2.7.x	2	7	N/A
3.0.2	3	0	2

Alternative Version

If you prefer a single version macro, you can define the following yourself.

#if defined(__GNUC__)
# if defined(__GNUC_PATCHLEVEL__)
#  define __GNUC_VERSION__ (__GNUC__ * 10000 \
                            + __GNUC_MINOR__ * 100 \
                            + __GNUC_PATCHLEVEL__)
# else
#  define __GNUC_VERSION__ (__GNUC__ * 10000 \
                            + __GNUC_MINOR__ * 100)
# endif
#endif

The format of this new macro is:

Type	Macro	Format	Description
Version	__GNUC_VERSION__	VVRRPP	VV = Version RR = Revision PP = Patch

Example of Alternative Version

GNU C/C++	__GNUC_VERSION__
2.7.x	20700
3.0.2	30002

Green Hill C/C++

Type	Macro	Format	Description
Identification	__ghs__
Version	__GHS_VERSION_NUMBER__	VRP	V = Version R = Revision P = Patch
Version	__GHS_REVISION_DATE__	Epoch time

Example

Green Hill C/C++	__GHS_VERSION_NUMBER__
4.2.1	421

HP ANSI C

Type	Macro
Identification	__HP_cc

HP aC++

Type	Macro	Format	Description
Identification	__HP_aCC
Version	__HP_aCC	1	From version A.01.15 (and A.03.13)
Version	__HP_aCC	VVRRPP	VV = Version RR = Revision PP = Patch From version A.01.21 (and A.03.25)

Example

HP aCC	__HP_aCC
A.01.21	12100

IAR C/C++

Type	Macro	Format	Description
Identification	__IAR_SYSTEMS_ICC__
Version	__VER__	VRR	V = Version RR = Revision

Example

IAR C/C++	__VER__
3.34	334

IBM XL C/C++ (Clang-based versions)

The entry on XL C/C++ has been split into three for clarity. This entry covers the following versions:
IBM XL C/C++ for Linux for little endian distributions version 13.1.1 and later
IBM XL C/C++ for AIX version 16.1 and later (Clang-based compiler invocation only, see next section for legacy compiler invocation)
Clang-based versions of IBM XL C/C++ define the Clang macros listed in the Clang section.
Specify -qxlcompatmacros to also define the legacy macros listed in IBM XL C/C++ (legacy versions). This is useful when you migrate programs from IBM XL C/C++ (legacy versions) to IBM XL C/C++ (Clang-based versions).

Type	Macro	Format	Description
Identification	__ibmxl__		C and C++ compiler
	__clang__
Version	__ibmxl_vrm__	0xVVRRMM00	VV = Version RR = Release MM = Modification
	__ibmxl_version__	V	V = Version
	__ibmxl_release__	R	R = Release
	__ibmxl_modification__	M	M = Modification
	__ibmxl_ptf_fix_level__	F	F = Fix Pack

Example

IBM XL C/C++	__ibmxl_vrm__
13.1.6.1	0x0D010600
16.1.0.0	0x10010000

IBM XL C/C++ (legacy versions)

The entry on XL C/C++ has been split into three for clarity. This entry covers the following versions:
IBM XL C/C++ for Linux for big endian distributions
IBM XL C/C++ for AIX (Note: starting in version 16.1, IBM XL C/C++ for AIX also offers a Clang-based compiler invocation, see the Clang-based versions section above for that compiler invocation)

Clang-based versions of IBM XL C/C++ will also define the legacy macros listed in this section when -qxlcompatmacros is specified.

Type	Macro	Format	Description
Identification	__xlC__		C and C++ compiler
Version	__IBMC__	0xVVRRMM	C compiler VV = Version RR = Release MM = Modification
	__IBMCPP__	0xVVRRMM	C++ compiler VV = Version RR = Release MM = Modification
	__xlc__	0xVVRRMMFF	C compiler VV = Version RR = Release MM = Modification FF = Fix Pack
	__xlC__	0xVVRR	C and C++ compiler VV = Version RR = Release
	__xlC_ver__	0x0000MMFF	MM = Modification FF = Fix Pack

Example

IBM XL C/C++	__IBMCPP__	__xlC__	__xlC_ver__
13.1.3.5	0x0D0103	0x0D01	0x00000305
12.1.0.4	0x0C0100	0x0C01	0x00000004

IBM z/OS XL C/C++

The entry on XL C/C++ has been split into three for clarity. This entry covers the XL C/C++ compiler for mainframes (e.g. z/OS).

Type	Macro	Format	Description
Identification	__IBMC__		C compiler
	__IBMCPP__		C++ compiler
Version	__IBMC__ __IBMCPP__	NVRRM	N = Product (0 = C/370, 1 = MVS, 2 = OS/390, 4 = z/OS) V = Version RR = Revision M = Modification
	__COMPILER_VER__	0xNVRRMMFF	N = Product (see above) V = Version RR = Revision MM = Modification FF = Fix Pack

Notice that XL C/C++ also defines __IBMC__ and __IBMCPP__ macros, but with a different syntax. You can use __xlC__ (only defined for XL C/C++) or __COMPILER_VER__ (only defined for z/OS XL C/C++) to distinguish between the two. Alternatively, the macro identifying z/OS (__MVS__) can be used to distinguish between them.

#if defined(__IBMC__) || defined(__IBMCPP__)
# if defined(__COMPILER_VER__)
/* z/OS XL C/C++ so __IBMC__ is defined as NVRRM */
# else
/* z/OS XL C/C++ so __IBMC__ is defined as VRM */
# endif
#endif

Example

IBM z/OS XL C/C++	__IBMC__	__COMPILER_VER__
2.3	42030	0x42030000

ImageCraft C

Type	Macro
Identification	__IMAGECRAFT__

Intel C/C++

Type	Macro	Format	Description
Identification	__INTEL_COMPILER
Identification	__ICC		Obsolete
Identification	__ECC		Obsolete
Identification	__ICL
Version	__INTEL_COMPILER	VRP	V = Version R = Revision P = Patch
Version	__INTEL_COMPILER_BUILD_DATE	YYYYMMDD	YYYY = Year MM = Month DD = Day

Example

Intel C/C++	__INTEL_COMPILER	__INTEL_COMPILER_BUILD_DATE
5.0	500
6.0	600
8.0	800
9.0	900	20060222

KAI C++

Type	Macro	Format	Description
Identification	__KCC
Version	__KCC_VERSION	0xVRPP	V = Version R = Revision PP = Patch (a = 01, b = 02, ...)

Example

KAI C++	__KCC_VERSION
4.0d	4004

KEIL CARM

Type	Macro	Format	Description
Identification	__CA__
Identification	__KEIL__
Version	__CA__	VRR	V = Version RR = Revision

Example

Keil CARM	__CA__
1.01	101

KEIL C166

Type	Macro	Format	Description
Identification	__C166__
Version	__C166__	VRR	V = Version RR = Revision

Example

Keil C166	__C166__
5.01	501

KEIL C51

Type	Macro	Format	Description
Identification	__C51__
Identification	__CX51__
Version	__C51__	VRR	V = Version RR = Revision

Example

Keil C51	__C51__
7.01	701

LCC

Type	Macro
Identification	__LCC__

LLVM

Type	Macro
Identification	__llvm__

The Clang compiler has an expectation that it operates in conjunction with the LLVM compiler, so the Clang compiler defines __llvm__ too. IBM XL C/C++ (Clang-based versions) use Clang infrastructure, so IBM XL C/C++ for Linux versions 13.1.1 to 16.1 also define __llvm__. Starting from version 16.1.1, IBM XL C/C++ for Linux no longer defines __llvm__.

MetaWare High C/C++

Type	Macro
Identification	__HIGHC__

Metrowerks CodeWarrior

Type	Macro	Format	Description
Identification	__MWERKS__
Identification	__CWCC__		From 4.2.0
Version	__MWERKS__	1	Until CodeWarrior 7
Version	__MWERKS__	0xVRPP	V = Version R = Revision PP = Patch From CodeWarrior 7
Version	__CWCC__	0xVRPP	V = Version R = Revision PP = Patch From 4.2.0

Example

Metrowerks C/C++	__MWERKS__	__CWCC__
2.0	0x2000
2.2	0x2200
4.2.0	0x4200	0x4200

Microsoft Visual C++

Type	Macro	Format	Description
Identification	_MSC_VER
Version	_MSC_VER	VVRR	VV = Version RR = Revision
Version	_MSC_FULL_VER	VVRRPPPP	VV = Version RR = Revision PPPP = Patch From Visual C++ 6.0 Processor Pack
Version	_MSC_FULL_VER	VVRRPPPPP	VV = Version RR = Revision PPPPP = Patch From Visual C++ 8.0
Version	_MSC_BUILD	B	B = Build number From Visual C++ 9.0

Example

Visual C++ 1 2	_MSC_VER	_MSC_FULL_VER
1.0	800
3.0	900
4.0	1000
4.2	1020
5.0	1100
6.0	1200
6.0 SP6	1200	12008804
7.0	1300	13009466
7.1 (2003)	1310	13103077
8.0 (2005)	1400	140050727
9.0 (2008)	1500	150021022
9.0 SP1	1500	150030729
10.0 (2010)	1600	160030319
10.0 (2010) SP1	1600	160040219
11.0 (2012)	1700	170050727
12.0 (2013)	1800	180021005
14.0 (2015)	1900	190023026
14.0 (2015 Update 1)	1900	190023506
14.0 (2015 Update 2)	1900	190023918
14.0 (2015 Update 3)	1900	190024210
15.0 (2017)	1910	191025017

Microtec C/C++

Type	Macro
Identification	_MRI

Microway NDP C

Type	Macro
Identification	__NDPC__ __NDPX__

MinGW and MinGW-w64

MinGW (formerly known as MinGW32) is a toolchain for creating 32 Bit Windows executables. The MinGW-w64 projects offers toolchains for creating 32 Bit and 64 Bit Windows executables. The following table shows which macros are defined by each toolchain:

Type	Macro	Description	MinGW32	MinGW-w64 32 Bit	MinGW-w64 64 Bit
Identification	__MINGW32__		defined	defined	defined
Version	__MINGW32_MAJOR_VERSION	Version	defined	defined	defined
Version	__MINGW32_MINOR_VERSION	Revision	defined	defined	defined
Identification	__MINGW64__		-	-	defined
Version	__MINGW64_VERSION_MAJOR	Version	-	defined	defined
Version	__MINGW64_VERSION_MINOR	Revision	-	defined	defined

Notice that __MINGW32_MAJOR_VERSION, __MINGW32_MINOR_VERSION, __MINGW64_VERSION_MAJOR, and __MINGW64_VERSION_MINOR
are only defined if appropriate headers are included. Appropriate headers are
<stdlib.h>, <stdio.h>, <windows.h>, <windef.h>, and probably more.

Examples

__MINGW32_MAJOR_VERSION	__MINGW32_MINOR_VERSION	__MINGW64_VERSION_MAJOR	__MINGW64_VERSION_MINOR	Description
2	4			MinGW32 2.4
3	20			MinGW32 3.20
3	11	2	0	MinGW-w64 2.0

MIPSpro

Type	Macro	Format	Description
Identification	__sgi
Identification	sgi
Version	_COMPILER_VERSION	VRP	V = Version R = Revision P = Patch Until ?
Version	_SGI_COMPILER_VERSION	VRP	V = Version R = Revision P = Patch From ?

Example

MIPSpro	_COMPILER_VERSION	_SGI_COMPILER_VERSION
6.0.2	602
7.2.1	721
7.4.4		744

Miracle C

Type	Macro
Identification	MIRACLE

MPW C++

Type	Macro	Format	Description
Identification	__MRC__
Identification	MPW_C
Identification	MPW_CPLUS
Version	__MRC__	0xVVRR	VV = Version RR = Revision

Example

MPW C++	__MRC__
5.0	0x500

Norcroft C

Type	Macro	Format	Description
Identification	__CC_NORCROFT
Version	__ARMCC_VERSION	V.R	V = Version R = Revision

Notice that __ARMCC_VERSION is assigned a floating-point number, so it cannot be used by the preprocessor to compare versions.

Example

Norcroft C	__ARMCC_VERSION
4.69	4.69
4.90	4.90

NWCC

Type	Macro
Identification	__NWCC__

Open64

Type	Macro	Format	Description
Identification	__OPEN64__		Contains the full version as a string
Identification	__OPENCC__
Version	__OPENCC__	V	V = Version
Version	__OPENCC_MINOR__	R	R = Revision
Version	__OPENCC_PATCHLEVEL__	P.B	P = Patch B = Build

Notice that __OPENCC_PATCHLEVEL__ can be a floating-point number (e.g. 5.2 for Open64 version 4.2.5.2) so it cannot be used by the preprocessor to compare patch-levels.

Oracle Pro*C Precompiler

Type	Macro
Identification	ORA_PROC

Oracle Solaris Studio

Type	Macro	Format	Description
Identification	__SUNPRO_C		C compiler
Version	__SUNPRO_C	0xVRP	V = Version R = Revision P = Patch Until version 5.9
Version	__SUNPRO_C	0xVRRP	V = Version RR = Revision P = Patch From later releases
Identification	__SUNPRO_CC		C++ compiler
Version	__SUNPRO_CC	As __SUNPRO_C

Example

Compiler version	Solaris Studio	__SUNPRO_C
4.2	4.2	0x420
5.0	5.0	0x500
5.2	6.1	0x520
5.3	6.2	0x530
5.4	7	0x540
5.5	8	0x550
5.6	9	0x560
5.7	10	0x570
5.8	11	0x580
5.9	12	0x590
5.10	12.1	0x5100
5.11	12.2	0x5110
5.12	12.3	0x5120

The name of Oracle Solaris Studio has changed over the years (e.g. Sun Studio, Sun Workshop, Forte Developer) but we do not make this distinction in the table above.

Pacific C

Type	Macro
Identification	__PACIFIC__

Palm C/C++

Type	Macro	Format	Description
Identification	_PACC_VER
Version	_PACC_VER	0xVRRPPBBB	V = Version RR = Revision PP = Patch BBB = Build

Example

Palm C/C++	_PACC_VER
1.0.0.13	0x1000000D

Pelles C

Type	Macro	Format	Description
Identification	__POCC__
Version	__POCC__	VRR	V = Version RR = Revision

Example

Pelles C	__POCC__
3.00	300

Portland Group C/C++

Type	Macro	Description
Identification	__PGI
Version	__PGIC__	Version
Version	__PGIC_MINOR__	Revision
Version	__PGIC_PATCHLEVEL__	Patch

Example

PGI C/C++	__PGIC__	__PGIC_MINOR__	__PGIC_PATCHLEVEL__
7.0.1	7	0	1
11.9	11	9	0

Renesas C/C++

Type	Macro	Format	Description
Identification	__RENESAS__
Identification	__HITACHI__
Version	__RENESAS_VERSION__	0xVVRR	V = Version R = Revision P = Patch
Version	__RENESAS_VERSION__	0xVVRRPP00	From ?
Version	__HITACHI_VERSION__	0xVVRR	As above

Example

Renesas C/C++	__HITACHI_VERSION__	__RENESAS_VERSION__
5.1C	0x0501
8.0	0x8000	0x8000
1.00.00		0x01000000

SAS/C

Type	Macro	Format	Description
Identification	SASC
Identification	__SASC
Identification	__SASC__
Version	__VERSION__		Until ?
Version	__REVISION__		Until ?
Version	__SASC__	VRR	V = Version RR = Revision From ?

Example

SAS/C	__SASC__	__VERSION__	__REVISION__
5.10		5	10
6.50	650

SCO OpenServer

Type	Macro
Identification	_SCO_DS

Small Device C Compiler

Type	Macro	Format	Description
Identification	SDCC
Version	SDCC	VRP	V = Version R = Revision P = Patch

Example

SDCC Version	SDCC Macro
2.5.6	256

SN Compiler

Type	Macro
Identification	__SNC__

Stratus VOS C

Type	Macro	Description
Identification	__VOSC__
Version	__VOSC__	0 = K&R compiler 1 = ANSI C compiler

Symantec C++

Type	Macro	Format	Description
Identification	__SC__
Version	__SC__	0xVVRR	VV = Version RR = Revision

TenDRA C/C++

Type	Macro
Identification	__TenDRA__

Texas Instruments C/C++ Compiler

Type	Macro	Format	Description
Identification	__TI_COMPILER_VERSION__
Identification	_TMS320C6X		All C6000 compilers
Version	__TI_COMPILER_VERSION__	VVVRRRPPP	VVV = Version RRR = Revision PPP = Patch

Example

TI C/C++	__TI_COMPILER_VERSION__
4.9.1	4009001
7.3.1	7003001

THINK C

Type	Macro	Description
Version	THINKC3	Version 3.x
Version	THINKC4	Version 4.x

Tiny C

Type	Macro
Identification	__TINYC__

Turbo C/C++

Type	Macro	Format	Description
Identification	__TURBOC__
Version	__TURBOC__	0xVVRR	VV = Version RR = Revision This pattern does not apply to the values between 0x295 and 0x400.

Example

Turbo C	Turbo C++	__TURBOC__
2.01		0x201
	1.00	0x295
	1.01	0x296
	2.00	0x297

Ultimate C/C++

Type	Macro	Description
Identification	_UCC
Version	_MAJOR_REV = V _MINOR_REV = R	V = Version R = Revision

Example

Ultimate C/C++	_MAJOR_REV	_MINOR_REV
2.1	2	1

USL C

Type	Macro	Format	Description
Identification	__USLC__
Version	__SCO_VERSION__	VRRYYYYMM	V = Version RR = Revision YYYY = Year MM = Month

Example

USL C	__SCO_VERSION__	Description
3.2	302199801
3.4	304200805	UnixWare 7.1.4 UDK C++ (CC)
4.2	402200805	UnixWare 7.1.4 UDK C (cc)

VBCC

Type	Macro
Identification	__VBCC__

Watcom C++

Type	Macro	Format	Description
Identification	__WATCOMC__
Version	__WATCOMC__	VVRR	VV = Version RR = Revision

Notice that Watcom C++ became Open Watcom C++ after version 11.0, and the official version numbering (but not the version macro) was restated at version 1.0.

Example

Watcom C++	Open Watcom C++	__WATCOMC__
10.5		1050
11.0		1100
	1.0	1200
	1.7	1270

Zortech C++

Type	Macro	Format	Description
Identification	__ZTC__
Version	__ZTC__	0xVRP	V = Version R = Revision P = Patch