platform.h is a tool I made to allow for effortless detection of the compiler, OS, and architecture that the app is being compiled for.
To check the operating system, you can check whether these macros are defined:
TARGET_OS_WINDOWS TARGET_OS_MACOSX TARGET_OS_LINUX TARGET_OS_SOLARIS // OpenSolaris, Solaris, etc TARGET_OS_FREEBSD TARGET_OS_OPENBSD TARGET_OS_NETBSD TARGET_OS_DOS TARGET_OS_NDSFIRMWARE // NDS == Nintendo DS
To check whether the platform is 32 or 64-bit:
TARGET_CPU_BITS == 32 TARGET_CPU_BITS == 64
To check your platform's endianness (byte ordering), check whether these are defined:
TARGET_LITTLE_ENDIAN // x86, x86_64, Alpha, IA64, ARM TARGET_BIG_ENDIAN // PowerPC, SPARC
To check for a compiler, you can check whether these macros are defined:
TARGET_COMPILER_MSVC // Visual C++ TARGET_COMPILER_ICC // Intel C/C++ compiler TARGET_COMPILER_GCC // GCC Note that there are some subsets of GCC that you may want to check for (these macros will be defined in addition to the TARGET_COMPILER_GCC macro: TARGET_COMPILER_CYGWIN TARGET_COMPILER_MINGW TARGET_COMPILER_DJGPP // DOS port TARGET_COMPILER_BORLAND
Signed-off-by: Steven Noonan <steven@uplinklabs.net>
ZOWFHZLM3OFVGZ42TXWP325A5OUWCAFMPTMM7HI6TR4Z37IWMZPAC /** CrissCross* A multi-purpose cross-platform library.** A product of Uplink Laboratories.** (c) 2006-2009 Steven Noonan.* Licensed under the New BSD License.**//*** Preprocessor Definitions* ------------------------** TARGET_CPU_ARM* ARM processor* TARGET_CPU_ALPHA* DEC Alpha processor* TARGET_CPU_SPARC* Sun Microsystems SPARC processor* TARGET_CPU_X86* Intel x86 processor* TARGET_CPU_IA64* Intel Itanic processor* TARGET_CPU_X64* Intel 64-bit processor* TARGET_CPU_PPC* IBM PowerPC processor** TARGET_OS_WINDOWS* Windows* TARGET_OS_LINUX* Linux* TARGET_OS_MACOSX* Mac OS X* TARGET_OS_FREEBSD* FreeBSD* TARGET_OS_NETBSD* NetBSD* TARGET_OS_OPENBSD* OpenBSD* TARGET_OS_NDSFIRMWARE* Nintendo DS firmware** TARGET_COMPILER_GCC* GNU C++ Compiler* TARGET_COMPILER_MINGW* GCC for MinGW* TARGET_COMPILER_VC* Visual C++* TARGET_COMPILER_ICC* Intel C++ Compiler** TARGET_BIG_ENDIAN* Running on a big endian byte order architecture.* TARGET_LITTLE_ENDIAN* Running on a little endian byte order architecture.**/#ifndef __included_cc_platform_detect_h#define __included_cc_platform_detect_h#undef PROCESSOR_DETECTED#undef COMPILER_DETECTED#undef OS_DETECTED/* ------------------- ** PROCESSOR DETECTION ** ------------------- *//* Carbon defines this for us on Mac, apparently... */#if defined (TARGET_CPU_PPC)#define PROCESSOR_DETECTED#endif/* ARM */#if !defined (PROCESSOR_DETECTED)#if defined (__arm__)#define PROCESSOR_DETECTED#define TARGET_CPU_ARM#define TARGET_LITTLE_ENDIAN#endif#endif/* DEC Alpha */#if !defined (PROCESSOR_DETECTED)#if defined (__alpha) || defined (__alpha__)#define PROCESSOR_DETECTED#define TARGET_CPU_ALPHA#define TARGET_LITTLE_ENDIAN /* How should bi-endianness be handled? */#endif#endif/* Sun SPARC */#if !defined (PROCESSOR_DETECTED)#if defined (__sparc) || defined (__sparc__)#define PROCESSOR_DETECTED#define TARGET_CPU_SPARC#define TARGET_BIG_ENDIAN#endif#endif/* PowerPC */#if !defined (PROCESSOR_DETECTED)#if defined (_ARCH_PPC) || defined (__ppc__) || defined (__ppc64__) || defined (__PPC) || defined (powerpc) || defined (__PPC__) || defined (__powerpc64__) || defined (__powerpc64)#define PROCESSOR_DETECTED#if defined (__ppc64__) || defined (__powerpc64__) || defined (__powerpc64)#define TARGET_CPU_PPC 64#else#define TARGET_CPU_PPC 32#endif#define TARGET_BIG_ENDIAN#endif#endif/* x86_64 or AMD64 or x64 */#if !defined (PROCESSOR_DETECTED)#if defined (__x86_64__) || defined (__x86_64) || defined (__amd64) || defined (__amd64__) || defined (_AMD64_) || defined (_M_X64)#define PROCESSOR_DETECTED#define TARGET_CPU_X64#define TARGET_CPU_X86_64#define TARGET_LITTLE_ENDIAN#endif#endif/* Intel x86 */#if !defined (PROCESSOR_DETECTED)#if defined (__i386__) || defined (__i386) || defined (i386) || defined (_X86_) || defined (_M_IX86)#define PROCESSOR_DETECTED#define TARGET_CPU_X86#define TARGET_LITTLE_ENDIAN#endif#endif/* IA64 */#if !defined (PROCESSOR_DETECTED)#if defined (__ia64__) || defined (_IA64) || defined (__ia64) || defined (_M_IA64)#define PROCESSOR_DETECTED#define TARGET_CPU_IA64#define TARGET_LITTLE_ENDIAN#endif#endif/* ------------------- ** COMPILER DETECTION ** ------------------- */#if !defined (COMPILER_DETECTED)#if defined (__GNUC__)#define COMPILER_DETECTED#define TARGET_COMPILER_GCC#endif#if defined (__CYGWIN__) || defined (__CYGWIN32__)#define TARGET_COMPILER_CYGWIN#endif#if defined (__MINGW32__)#define TARGET_COMPILER_MINGW#endif#if defined (__DJGPP__)#define TARGET_COMPILER_DJGPP#endif#endif#if !defined (COMPILER_DETECTED)#if defined (__INTEL_COMPILER) || defined (__ICL)#define COMPILER_DETECTED#define TARGET_COMPILER_ICC#endif#endif#if !defined (COMPILER_DETECTED)#if defined (_MSC_VER)#define COMPILER_DETECTED#define TARGET_COMPILER_VC#endif#endif#if !defined (COMPILER_DETECTED)#if defined (__BORLANDC__)/* Earlier Borland compilers break terribly */#if __BORLANDC__ >= 0x0600#define COMPILER_DETECTED#define TARGET_COMPILER_BORLAND#endif#endif#endif/* ------------ ** OS DETECTION ** ------------ */#if !defined (OS_DETECTED)#if defined (TARGET_COMPILER_VC) || defined (_WIN32) || defined (_WIN64)#define OS_DETECTED#define TARGET_OS_WINDOWS#endif#endif#if !defined (OS_DETECTED)#if defined (__linux__) || defined (linux) || defined (__linux) || defined (__gnu_linux__) || defined (__CYGWIN__)#define OS_DETECTED#define TARGET_OS_LINUX#endif#endif#if !defined (OS_DETECTED)#if defined (TARGET_CPU_ARM)#define OS_DETECTED#define TARGET_OS_NDSFIRMWARE#endif#endif#if !defined (OS_DETECTED)#if defined (MSDOS) || defined (__DOS__) || defined (__DJGPP__)#define OS_DETECTED#define TARGET_OS_DOS#endif#endif#if !defined (OS_DETECTED)#if defined (__sun__)#define OS_DETECTED#define TARGET_OS_SOLARIS#endif#endif#if !defined (OS_DETECTED)#if defined (__FreeBSD__)#define OS_DETECTED#define TARGET_OS_FREEBSD#endif#endif#if !defined (OS_DETECTED)#if defined (__NetBSD__)#define OS_DETECTED#define TARGET_OS_NETBSD#endif#endif#if !defined (OS_DETECTED)#if defined (__OpenBSD__)#define OS_DETECTED#define TARGET_OS_OPENBSD#endif#endif#if !defined (OS_DETECTED)#if defined (__APPLE__) || defined (__MACH__)#define OS_DETECTED#define TARGET_OS_MACOSX#endif#endif#if defined (_LP64) || defined (__LP64__) || defined (_M_X64) || defined(_M_IA64)#define TARGET_CPU_BITS 64#else#define TARGET_CPU_BITS 32#endif#if defined (TARGET_CPU_PPC)#if TARGET_CPU_PPC == 32#define TARGET_CPU_BITS 32#elif TARGET_CPU_PPC == 64#define TARGET_CPU_BITS 64#endif#endif#if !defined (PROCESSOR_DETECTED)#error "Could not detect target CPU."#endif#if !defined (COMPILER_DETECTED)#error "Could not detect target compiler."#endif#if !defined (OS_DETECTED)#error "Could not detect target OS."#endif#if !defined (TARGET_CPU_BITS)#error "Could not detect 32-bit/64-bit architecture."#endif#endif