- Main Page
- Classes
- Files
- Related Pages

- File List
- File Members

# cpl_port.h

Go to the documentation of this file.

    00001 /******************************************************************************
    00002  * $Id: cpl_port.h 12841 2007-11-18 18:06:49Z mloskot $
    00003  *
    00004  * Project:  CPL - Common Portability Library
    00005  * Author:   Frank Warmerdam, warmerdam@pobox.com
    00006  * Purpose:  Include file providing low level portability services for CPL.
    00007  *           This should be the first include file for any CPL based code.
    00008  *
    00009  ******************************************************************************
    00010  * Copyright (c) 1998, 2005, Frank Warmerdam <warmerdam@pobox.com>
    00011  *
    00012  * Permission is hereby granted, free of charge, to any person obtaining a
    00013  * copy of this software and associated documentation files (the "Software"),
    00014  * to deal in the Software without restriction, including without limitation
    00015  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
    00016  * and/or sell copies of the Software, and to permit persons to whom the
    00017  * Software is furnished to do so, subject to the following conditions:
    00018  *
    00019  * The above copyright notice and this permission notice shall be included
    00020  * in all copies or substantial portions of the Software.
    00021  *
    00022  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
    00023  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    00024  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
    00025  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    00026  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
    00027  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
    00028  * DEALINGS IN THE SOFTWARE.
    00029  ****************************************************************************/
    00030
    00031 #ifndef CPL_BASE_H_INCLUDED
    00032 #define CPL_BASE_H_INCLUDED
    00033
    00034 /* Remove annoying warnings Microsoft Visual C++ */
    00035 #if defined(_MSC_VER)
    00036 #  pragma warning(disable:4251 4275 4786)
    00037 #endif
    00038
    00046 /* ==================================================================== */
    00047 /*      We will use macos_pre10 to indicate compilation with MacOS      */
    00048 /*      versions before MacOS X.                                        */
    00049 /* ==================================================================== */
    00050 #ifdef macintosh
    00051 #  define macos_pre10
    00052 #endif
    00053
    00054 /* ==================================================================== */
    00055 /*      We will use WIN32 as a standard windows define.                 */
    00056 /* ==================================================================== */
    00057 #if defined(_WIN32) && !defined(WIN32) && !defined(_WIN32_WCE)
    00058 #  define WIN32
    00059 #endif
    00060
    00061 #if defined(_WINDOWS) && !defined(WIN32) && !defined(_WIN32_WCE)
    00062 #  define WIN32
    00063 #endif
    00064
    00065 /* ==================================================================== */
    00066 /*      We will use WIN32CE as a standard Windows CE (Mobile) define.   */
    00067 /* ==================================================================== */
    00068 #if defined(_WIN32_WCE)
    00069 #  define WIN32CE
    00070 #endif
    00071
    00072 /* -------------------------------------------------------------------- */
    00073 /*      The following apparently allow you to use strcpy() and other    */
    00074 /*      functions judged "unsafe" by microsoft in VS 8 (2005).          */
    00075 /* -------------------------------------------------------------------- */
    00076 #ifdef _MSC_VER
    00077 #  ifndef _CRT_SECURE_NO_DEPRECATE
    00078 #    define _CRT_SECURE_NO_DEPRECATE
    00079 #  endif
    00080 #  ifndef _CRT_NONSTDC_NO_DEPRECATE
    00081 #    define _CRT_NONSTDC_NO_DEPRECATE
    00082 #  endif
    00083 #  ifdef MSVC_USE_VLD
    00084 #    include <vld.h>
    00085 #  endif
    00086 #endif
    00087
    00088
    00089 #include "cpl_config.h"
    00090
    00091 /* ==================================================================== */
    00092 /*      This will disable most WIN32 stuff in a Cygnus build which      */
    00093 /*      defines unix to 1.                                              */
    00094 /* ==================================================================== */
    00095
    00096 #ifdef unix
    00097 #  undef WIN32
    00098 #  undef WIN32CE
    00099 #endif
    00100
    00101 #if defined(VSI_NEED_LARGEFILE64_SOURCE) && !defined(_LARGEFILE64_SOURCE)
    00102 #  define _LARGEFILE64_SOURCE 1
    00103 #endif
    00104
    00105 /* ==================================================================== */
    00106 /*      Standard include files.                                         */
    00107 /* ==================================================================== */
    00108
    00109 #include <stdio.h>
    00110 #include <stdlib.h>
    00111 #include <math.h>
    00112 #include <stdarg.h>
    00113 #include <string.h>
    00114 #include <ctype.h>
    00115
    00116 #if !defined(WIN32CE)
    00117 #  include <time.h>
    00118 #else
    00119 #  include <wce_time.h>
    00120 #  include <wce_errno.h>
    00121 #endif
    00122
    00123
    00124 #if defined(HAVE_ERRNO_H)
    00125 #  include <errno.h>
    00126 #endif
    00127
    00128 #ifdef HAVE_LOCALE_H
    00129 #  include <locale.h>
    00130 #endif
    00131
    00132 #ifdef HAVE_DIRECT_H
    00133 #  include <direct.h>
    00134 #endif
    00135
    00136 #ifdef _AIX
    00137 #  include <strings.h>
    00138 #endif
    00139
    00140 #if defined(HAVE_LIBDBMALLOC) && defined(HAVE_DBMALLOC_H) && defined(DEBUG)
    00141 #  define DBMALLOC
    00142 #  include <dbmalloc.h>
    00143 #endif
    00144
    00145 #if !defined(DBMALLOC) && defined(HAVE_DMALLOC_H)
    00146 #  define USE_DMALLOC
    00147 #  include <dmalloc.h>
    00148 #endif
    00149
    00150 /* ==================================================================== */
    00151 /*      Base portability stuff ... this stuff may need to be            */
    00152 /*      modified for new platforms.                                     */
    00153 /* ==================================================================== */
    00154
    00155 /*---------------------------------------------------------------------
    00156  *        types for 16 and 32 bits integers, etc...
    00157  *--------------------------------------------------------------------*/
    00158 #if UINT_MAX == 65535
    00159 typedef long            GInt32;
    00160 typedef unsigned long   GUInt32;
    00161 #else
    00162 typedef int             GInt32;
    00163 typedef unsigned int    GUInt32;
    00164 #endif
    00165
    00166 typedef short           GInt16;
    00167 typedef unsigned short  GUInt16;
    00168 typedef unsigned char   GByte;
    00169 typedef int             GBool;
    00170
    00171 /* -------------------------------------------------------------------- */
    00172 /*      64bit support                                                   */
    00173 /* -------------------------------------------------------------------- */
    00174
    00175 #if defined(WIN32) && defined(_MSC_VER)
    00176
    00177 #define VSI_LARGE_API_SUPPORTED
    00178 typedef __int64          GIntBig;
    00179 typedef unsigned __int64 GUIntBig;
    00180
    00181 #elif HAVE_LONG_LONG
    00182
    00183 typedef long long        GIntBig;
    00184 typedef unsigned long long GUIntBig;
    00185
    00186 #else
    00187
    00188 typedef long             GIntBig;
    00189 typedef unsigned long    GUIntBig;
    00190
    00191 #endif
    00192
    00193 /* ==================================================================== */
    00194 /*      Other standard services.                                        */
    00195 /* ==================================================================== */
    00196 #ifdef __cplusplus
    00197 #  define CPL_C_START           extern "C" {
    00198 #  define CPL_C_END             }
    00199 #else
    00200 #  define CPL_C_START
    00201 #  define CPL_C_END
    00202 #endif
    00203
    00204 #ifndef CPL_DLL
    00205 #if defined(_MSC_VER) && !defined(CPL_DISABLE_DLL)
    00206 #  define CPL_DLL     __declspec(dllexport)
    00207 #else
    00208 #  if defined(USE_GCC_VISIBILITY_FLAG)
    00209 #    define CPL_DLL     __attribute__ ((visibility("default")))
    00210 #  else
    00211 #    define CPL_DLL
    00212 #  endif
    00213 #endif
    00214 #endif
    00215
    00216 /* Should optional (normally private) interfaces be exported? */
    00217 #ifdef CPL_OPTIONAL_APIS
    00218 #  define CPL_ODLL CPL_DLL
    00219 #else
    00220 #  define CPL_ODLL
    00221 #endif
    00222
    00223 #ifndef CPL_STDCALL
    00224 #if defined(_MSC_VER) && !defined(CPL_DISABLE_STDCALL)
    00225 #  define CPL_STDCALL     __stdcall
    00226 #else
    00227 #  define CPL_STDCALL
    00228 #endif
    00229 #endif
    00230
    00231 #ifdef _MSC_VER
    00232 #  define FORCE_CDECL  __cdecl
    00233 #else
    00234 #  define FORCE_CDECL
    00235 #endif
    00236
    00237 #ifndef NULL
    00238 #  define NULL  0
    00239 #endif
    00240
    00241 #ifndef FALSE
    00242 #  define FALSE 0
    00243 #endif
    00244
    00245 #ifndef TRUE
    00246 #  define TRUE  1
    00247 #endif
    00248
    00249 #ifndef MAX
    00250 #  define MIN(a,b)      ((a<b) ? a : b)
    00251 #  define MAX(a,b)      ((a>b) ? a : b)
    00252 #endif
    00253
    00254 #ifndef ABS
    00255 #  define ABS(x)        ((x<0) ? (-1*(x)) : x)
    00256 #endif
    00257
    00258 /* -------------------------------------------------------------------- */
    00259 /*      Macro to test equality of two floating point values.            */
    00260 /*      We use fabs() function instead of ABS() macro to avoid side     */
    00261 /*      effects.                                                        */
    00262 /* -------------------------------------------------------------------- */
    00263 #ifndef CPLIsEqual
    00264 #  define CPLIsEqual(x,y) (fabs((x) - (y)) < 0.0000000000001)
    00265 #endif
    00266
    00267 #ifndef EQUAL
    00268 #if defined(WIN32) || defined(WIN32CE)
    00269 #  define EQUALN(a,b,n)           (strnicmp(a,b,n)==0)
    00270 #  define EQUAL(a,b)              (stricmp(a,b)==0)
    00271 #else
    00272 #  define EQUALN(a,b,n)           (strncasecmp(a,b,n)==0)
    00273 #  define EQUAL(a,b)              (strcasecmp(a,b)==0)
    00274 #endif
    00275 #endif
    00276
    00277 #ifdef macos_pre10
    00278 int strcasecmp(char * str1, char * str2);
    00279 int strncasecmp(char * str1, char * str2, int len);
    00280 char * strdup (char *instr);
    00281 #endif
    00282
    00283 #ifndef CPL_THREADLOCAL
    00284 #  define CPL_THREADLOCAL
    00285 #endif
    00286
    00287 /* -------------------------------------------------------------------- */
    00288 /*      Handle isnan() and isinf().  Note that isinf() and isnan()      */
    00289 /*      are supposed to be macros according to C99.  Some systems       */
    00290 /*      (ie. Tru64) don't have isinf() at all, so if the macro is       */
    00291 /*      not defined we just assume nothing is infinite.  This may       */
    00292 /*      mean we have no real CPLIsInf() on systems with an isinf()      */
    00293 /*      function but no corresponding macro, but I can live with        */
    00294 /*      that since it isn't that important a test.                      */
    00295 /* -------------------------------------------------------------------- */
    00296 #ifdef _MSC_VER
    00297 #  define CPLIsNan(x) _isnan(x)
    00298 #  define CPLIsInf(x) (!_isnan(x) && !_finite(x))
    00299 #  define CPLIsFinite(x) _finite(x)
    00300 #else
    00301 #  define CPLIsNan(x) isnan(x)
    00302 #  ifdef isinf
    00303 #    define CPLIsInf(x) isinf(x)
    00304 #    define CPLIsFinite(x) (!isnan(x) && !isinf(x))
    00305 #  else
    00306 #    define CPLIsInf(x)    FALSE
    00307 #    define CPLIsFinite(x) (!isnan(x))
    00308 #  endif
    00309 #endif
    00310
    00311 /*---------------------------------------------------------------------
    00312  *                         CPL_LSB and CPL_MSB
    00313  * Only one of these 2 macros should be defined and specifies the byte
    00314  * ordering for the current platform.
    00315  * This should be defined in the Makefile, but if it is not then
    00316  * the default is CPL_LSB (Intel ordering, LSB first).
    00317  *--------------------------------------------------------------------*/
    00318 #if defined(WORDS_BIGENDIAN) && !defined(CPL_MSB) && !defined(CPL_LSB)
    00319 #  define CPL_MSB
    00320 #endif
    00321
    00322 #if ! ( defined(CPL_LSB) || defined(CPL_MSB) )
    00323 #define CPL_LSB
    00324 #endif
    00325
    00326 #if defined(CPL_LSB)
    00327 #  define CPL_IS_LSB 1
    00328 #else
    00329 #  define CPL_IS_LSB 0
    00330 #endif
    00331
    00332 /*---------------------------------------------------------------------
    00333  *        Little endian <==> big endian byte swap macros.
    00334  *--------------------------------------------------------------------*/
    00335
    00336 #define CPL_SWAP16(x) \
    00337         ((GUInt16)( \
    00338             (((GUInt16)(x) & 0x00ffU) << 8) | \
    00339             (((GUInt16)(x) & 0xff00U) >> 8) ))
    00340
    00341 #define CPL_SWAP16PTR(x) \
    00342 {                                                                 \
    00343     GByte       byTemp, *_pabyDataT = (GByte *) (x);              \
    00344                                                                   \
    00345     byTemp = _pabyDataT[0];                                       \
    00346     _pabyDataT[0] = _pabyDataT[1];                                \
    00347     _pabyDataT[1] = byTemp;                                       \
    00348 }
    00349
    00350 #define CPL_SWAP32(x) \
    00351         ((GUInt32)( \
    00352             (((GUInt32)(x) & (GUInt32)0x000000ffUL) << 24) | \
    00353             (((GUInt32)(x) & (GUInt32)0x0000ff00UL) <<  8) | \
    00354             (((GUInt32)(x) & (GUInt32)0x00ff0000UL) >>  8) | \
    00355             (((GUInt32)(x) & (GUInt32)0xff000000UL) >> 24) ))
    00356
    00357 #define CPL_SWAP32PTR(x) \
    00358 {                                                                 \
    00359     GByte       byTemp, *_pabyDataT = (GByte *) (x);              \
    00360                                                                   \
    00361     byTemp = _pabyDataT[0];                                       \
    00362     _pabyDataT[0] = _pabyDataT[3];                                \
    00363     _pabyDataT[3] = byTemp;                                       \
    00364     byTemp = _pabyDataT[1];                                       \
    00365     _pabyDataT[1] = _pabyDataT[2];                                \
    00366     _pabyDataT[2] = byTemp;                                       \
    00367 }
    00368
    00369 #define CPL_SWAP64PTR(x) \
    00370 {                                                                 \
    00371     GByte       byTemp, *_pabyDataT = (GByte *) (x);              \
    00372                                                                   \
    00373     byTemp = _pabyDataT[0];                                       \
    00374     _pabyDataT[0] = _pabyDataT[7];                                \
    00375     _pabyDataT[7] = byTemp;                                       \
    00376     byTemp = _pabyDataT[1];                                       \
    00377     _pabyDataT[1] = _pabyDataT[6];                                \
    00378     _pabyDataT[6] = byTemp;                                       \
    00379     byTemp = _pabyDataT[2];                                       \
    00380     _pabyDataT[2] = _pabyDataT[5];                                \
    00381     _pabyDataT[5] = byTemp;                                       \
    00382     byTemp = _pabyDataT[3];                                       \
    00383     _pabyDataT[3] = _pabyDataT[4];                                \
    00384     _pabyDataT[4] = byTemp;                                       \
    00385 }
    00386
    00387
    00388 /* Until we have a safe 64 bits integer data type defined, we'll replace
    00389  * this version of the CPL_SWAP64() macro with a less efficient one.
    00390  */
    00391 /*
    00392 #define CPL_SWAP64(x) \
    00393         ((uint64)( \
    00394             (uint64)(((uint64)(x) & (uint64)0x00000000000000ffULL) << 56) | \
    00395             (uint64)(((uint64)(x) & (uint64)0x000000000000ff00ULL) << 40) | \
    00396             (uint64)(((uint64)(x) & (uint64)0x0000000000ff0000ULL) << 24) | \
    00397             (uint64)(((uint64)(x) & (uint64)0x00000000ff000000ULL) << 8) | \
    00398             (uint64)(((uint64)(x) & (uint64)0x000000ff00000000ULL) >> 8) | \
    00399             (uint64)(((uint64)(x) & (uint64)0x0000ff0000000000ULL) >> 24) | \
    00400             (uint64)(((uint64)(x) & (uint64)0x00ff000000000000ULL) >> 40) | \
    00401             (uint64)(((uint64)(x) & (uint64)0xff00000000000000ULL) >> 56) ))
    00402 */
    00403
    00404 #define CPL_SWAPDOUBLE(p) CPL_SWAP64PTR(p)
    00405
    00406 #ifdef CPL_MSB
    00407 #  define CPL_MSBWORD16(x)      (x)
    00408 #  define CPL_LSBWORD16(x)      CPL_SWAP16(x)
    00409 #  define CPL_MSBWORD32(x)      (x)
    00410 #  define CPL_LSBWORD32(x)      CPL_SWAP32(x)
    00411 #  define CPL_MSBPTR16(x)
    00412 #  define CPL_LSBPTR16(x)       CPL_SWAP16PTR(x)
    00413 #  define CPL_MSBPTR32(x)
    00414 #  define CPL_LSBPTR32(x)       CPL_SWAP32PTR(x)
    00415 #  define CPL_MSBPTR64(x)
    00416 #  define CPL_LSBPTR64(x)       CPL_SWAP64PTR(x)
    00417 #else
    00418 #  define CPL_LSBWORD16(x)      (x)
    00419 #  define CPL_MSBWORD16(x)      CPL_SWAP16(x)
    00420 #  define CPL_LSBWORD32(x)      (x)
    00421 #  define CPL_MSBWORD32(x)      CPL_SWAP32(x)
    00422 #  define CPL_LSBPTR16(x)
    00423 #  define CPL_MSBPTR16(x)       CPL_SWAP16PTR(x)
    00424 #  define CPL_LSBPTR32(x)
    00425 #  define CPL_MSBPTR32(x)       CPL_SWAP32PTR(x)
    00426 #  define CPL_LSBPTR64(x)
    00427 #  define CPL_MSBPTR64(x)       CPL_SWAP64PTR(x)
    00428 #endif
    00429
    00430 /***********************************************************************
    00431  * Define CPL_CVSID() macro.  It can be disabled during a build by
    00432  * defining DISABLE_CPLID in the compiler options.
    00433  *
    00434  * The cvsid_aw() function is just there to prevent reports of cpl_cvsid()
    00435  * being unused.
    00436  */
    00437
    00438 #ifndef DISABLE_CVSID
    00439 #  define CPL_CVSID(string)     static char cpl_cvsid[] = string; \
    00440 static char *cvsid_aw() { return( cvsid_aw() ? ((char *) NULL) : cpl_cvsid ); }
    00441 #else
    00442 #  define CPL_CVSID(string)
    00443 #endif
    00444
    00445 #endif /* ndef CPL_BASE_H_INCLUDED */

Generated for GDAL by 1.5.1.