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__	?

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
	2009	0x613	0x613
	2010	0x621	0x621

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
Identification	__clang__
Version	__clang_major__	Version
Version	__clang_minor__	Revision
Version	__clang_patchlevel__	Patch

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.

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