Pre-defined Library Macros

Table of Content - Compilers

The following macros have to be included from <features.h>.

Type	Macro	Description
Version	__GNU_LIBRARY__ __GNU_LIBRARY_MINOR__	Until version 5
Version	__GLIBC__ __GLIBC_MINOR__	From version 6

Type	Macro	Format	Description
Identification	__CRTL_VER	.	.
Version	__CRTL_VER	VVRREPPTT	VV = Version RR = Revision E = Edit number PP = Patch (01 = A, ... 26 = Z) TT = Type (22 = official)

Please note that I am not sure about the format of __CRTL_VER, but it seems to follow that of __VMS_VER.

Type	Macro	Format	Description
Identification	__LIBREL__	.	Host
Identification	__TARGET_LIB__	.	Target
Version	__LIBREL__	0xNVRRPPPP	N = Product (0 = C/370, 1 = MVS, 2 = OS/390, 4 = z/OS) V = Version RR = Revision PPPP = Patch Defined for z/OS XL C/C++
Version	__TARGET_LIB__	As above	.

Library __LIBREL__

OS/390 2.10 0x220A0000

z/OS 1.1 0x41010000

z/OS 1.6 0x41060000

Type	Macro	Format	Description
Identification	__CPPLIB_VER	.	.
Version	__CPPLIB_VER	VVRR	VV = Version RR = Revision

Dinkumware __CPPLIB_VER

3.08 308

Dinkumware	__CPPLIB_VER
3.08	308

Type	Macro	Format	Description
Version	__GLIBCPP__	YYYYMMDD	YYYY = Year MM = Month DD = Day Until GCC 3.4.0
Version	__GLIBCXX__	YYYYMMDD	YYYY = Year MM = Month DD = Day From GCC 3.4.0

GCC __GLIBCPP__ __GLIBCXX__

3.0.0 20010615 .

3.1.0 20020514 .

3.2.0 20020814 .

3.3.0 20030513 .

3.4.0 . 20040419

Type	Macro
Identification	__INTEL_CXXLIB_ICC

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

MFC _MFC_VER

4.21 0x0421

6.0 0x0600

7.0 0x0700

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