📄 cpl_port.h
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/* Other standard services. *//* ==================================================================== */#ifdef __cplusplus# define CPL_C_START extern "C" {# define CPL_C_END }#else# define CPL_C_START# define CPL_C_END#endif#ifndef CPL_DLL#if defined(_MSC_VER) && !defined(CPL_DISABLE_DLL)# define CPL_DLL __declspec(dllexport)#else# define CPL_DLL#endif#endif// Should optional (normally private) interfaces be exported?#ifdef CPL_OPTIONAL_APIS# define CPL_ODLL CPL_DLL#else# define CPL_ODLL#endif#ifndef CPL_STDCALL#if defined(_MSC_VER) && !defined(CPL_DISABLE_STDCALL)# define CPL_STDCALL __stdcall#else# define CPL_STDCALL#endif#endif#ifdef _MSC_VER# define FORCE_CDECL __cdecl#else# define FORCE_CDECL #endif#ifndef NULL# define NULL 0#endif#ifndef FALSE# define FALSE 0#endif#ifndef TRUE# define TRUE 1#endif#ifndef MAX# define MIN(a,b) ((a<b) ? a : b)# define MAX(a,b) ((a>b) ? a : b)#endif#ifndef ABS# define ABS(x) ((x<0) ? (-1*(x)) : x)#endif/* -------------------------------------------------------------------- *//* Macro to test equality of two floating point values. *//* We use fabs() function instead of ABS() macro to avoid side *//* effects. *//* -------------------------------------------------------------------- */#ifndef CPLIsEqual# define CPLIsEqual(x,y) (fabs(fabs(x) - fabs(y)) < 0.0000000000001)#endif#ifndef EQUAL#if defined(WIN32) || defined(WIN32CE)# define EQUALN(a,b,n) (strnicmp(a,b,n)==0)# define EQUAL(a,b) (stricmp(a,b)==0)#else# define EQUALN(a,b,n) (strncasecmp(a,b,n)==0)# define EQUAL(a,b) (strcasecmp(a,b)==0)#endif#endif#ifdef macos_pre10int strcasecmp(char * str1, char * str2);int strncasecmp(char * str1, char * str2, int len);char * strdup (char *instr);#endif#ifndef CPL_THREADLOCAL # define CPL_THREADLOCAL #endif/* -------------------------------------------------------------------- *//* Handle isnan() and isinf(). Note that isinf() and isnan() *//* are supposed to be macros according to C99. Some systems *//* (ie. Tru64) don't have isinf() at all, so if the macro is *//* not defined we just assume nothing is infinite. This may *//* mean we have no real CPLIsInf() on systems with an isinf() *//* function but no corresponding macro, but I can live with *//* that since it isn't that important a test. *//* -------------------------------------------------------------------- */#ifdef _MSC_VER# define CPLIsNan(x) _isnan(x)# define CPLIsInf(x) (!_isnan(x) && !_finite(x))# define CPLIsFinite(x) _finite(x)#else# define CPLIsNan(x) isnan(x)# ifdef isinf # define CPLIsInf(x) isinf(x)# define CPLIsFinite(x) (!isnan(x) && !isinf(x))# else# define CPLIsInf(x) FALSE# define CPLIsFinite(x) (!isnan(x))# endif#endif/*--------------------------------------------------------------------- * CPL_LSB and CPL_MSB * Only one of these 2 macros should be defined and specifies the byte * ordering for the current platform. * This should be defined in the Makefile, but if it is not then * the default is CPL_LSB (Intel ordering, LSB first). *--------------------------------------------------------------------*/#if defined(WORDS_BIGENDIAN) && !defined(CPL_MSB) && !defined(CPL_LSB)# define CPL_MSB#endif#if ! ( defined(CPL_LSB) || defined(CPL_MSB) )#define CPL_LSB#endif#if defined(CPL_LSB)# define CPL_IS_LSB 1#else# define CPL_IS_LSB 0#endif/*--------------------------------------------------------------------- * Little endian <==> big endian byte swap macros. *--------------------------------------------------------------------*/#define CPL_SWAP16(x) \ ((GUInt16)( \ (((GUInt16)(x) & 0x00ffU) << 8) | \ (((GUInt16)(x) & 0xff00U) >> 8) ))#define CPL_SWAP16PTR(x) \{ \ GByte byTemp, *_pabyDataT = (GByte *) (x); \ \ byTemp = _pabyDataT[0]; \ _pabyDataT[0] = _pabyDataT[1]; \ _pabyDataT[1] = byTemp; \} #define CPL_SWAP32(x) \ ((GUInt32)( \ (((GUInt32)(x) & (GUInt32)0x000000ffUL) << 24) | \ (((GUInt32)(x) & (GUInt32)0x0000ff00UL) << 8) | \ (((GUInt32)(x) & (GUInt32)0x00ff0000UL) >> 8) | \ (((GUInt32)(x) & (GUInt32)0xff000000UL) >> 24) ))#define CPL_SWAP32PTR(x) \{ \ GByte byTemp, *_pabyDataT = (GByte *) (x); \ \ byTemp = _pabyDataT[0]; \ _pabyDataT[0] = _pabyDataT[3]; \ _pabyDataT[3] = byTemp; \ byTemp = _pabyDataT[1]; \ _pabyDataT[1] = _pabyDataT[2]; \ _pabyDataT[2] = byTemp; \} #define CPL_SWAP64PTR(x) \{ \ GByte byTemp, *_pabyDataT = (GByte *) (x); \ \ byTemp = _pabyDataT[0]; \ _pabyDataT[0] = _pabyDataT[7]; \ _pabyDataT[7] = byTemp; \ byTemp = _pabyDataT[1]; \ _pabyDataT[1] = _pabyDataT[6]; \ _pabyDataT[6] = byTemp; \ byTemp = _pabyDataT[2]; \ _pabyDataT[2] = _pabyDataT[5]; \ _pabyDataT[5] = byTemp; \ byTemp = _pabyDataT[3]; \ _pabyDataT[3] = _pabyDataT[4]; \ _pabyDataT[4] = byTemp; \} /* Until we have a safe 64 bits integer data type defined, we'll replacem * this version of the CPL_SWAP64() macro with a less efficient one. *//*#define CPL_SWAP64(x) \ ((uint64)( \ (uint64)(((uint64)(x) & (uint64)0x00000000000000ffULL) << 56) | \ (uint64)(((uint64)(x) & (uint64)0x000000000000ff00ULL) << 40) | \ (uint64)(((uint64)(x) & (uint64)0x0000000000ff0000ULL) << 24) | \ (uint64)(((uint64)(x) & (uint64)0x00000000ff000000ULL) << 8) | \ (uint64)(((uint64)(x) & (uint64)0x000000ff00000000ULL) >> 8) | \ (uint64)(((uint64)(x) & (uint64)0x0000ff0000000000ULL) >> 24) | \ (uint64)(((uint64)(x) & (uint64)0x00ff000000000000ULL) >> 40) | \ (uint64)(((uint64)(x) & (uint64)0xff00000000000000ULL) >> 56) ))*/#define CPL_SWAPDOUBLE(p) CPL_SWAP64PTR(p)#ifdef CPL_MSB# define CPL_MSBWORD16(x) (x)# define CPL_LSBWORD16(x) CPL_SWAP16(x)# define CPL_MSBWORD32(x) (x)# define CPL_LSBWORD32(x) CPL_SWAP32(x)# define CPL_MSBPTR16(x) # define CPL_LSBPTR16(x) CPL_SWAP16PTR(x)# define CPL_MSBPTR32(x) # define CPL_LSBPTR32(x) CPL_SWAP32PTR(x)# define CPL_MSBPTR64(x) # define CPL_LSBPTR64(x) CPL_SWAP64PTR(x)#else# define CPL_LSBWORD16(x) (x)# define CPL_MSBWORD16(x) CPL_SWAP16(x)# define CPL_LSBWORD32(x) (x)# define CPL_MSBWORD32(x) CPL_SWAP32(x)# define CPL_LSBPTR16(x) # define CPL_MSBPTR16(x) CPL_SWAP16PTR(x)# define CPL_LSBPTR32(x) # define CPL_MSBPTR32(x) CPL_SWAP32PTR(x)# define CPL_LSBPTR64(x) # define CPL_MSBPTR64(x) CPL_SWAP64PTR(x)#endif/*********************************************************************** * Define CPL_CVSID() macro. It can be disabled during a build by * defining DISABLE_CPLID in the compiler options. * * The cvsid_aw() function is just there to prevent reports of cpl_cvsid() * being unused. */#ifndef DISABLE_CVSID# define CPL_CVSID(string) static char cpl_cvsid[] = string; \static char *cvsid_aw() { return( cvsid_aw() ? ((char *) NULL) : cpl_cvsid ); }#else# define CPL_CVSID(string)#endif#endif /* ndef CPL_BASE_H_INCLUDED */
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