Application: gvSIG desktop

/******************************************************************************

 * $Id: cpl_port.h 7765 2006-10-03 07:05:18Z nacho $

 *

 * Project:  CPL - Common Portability Library

 * Author:   Frank Warmerdam, warmerdam@pobox.com

 * Purpose:  

 * Include file providing low level portability services for CPL.  This

 * should be the first include file for any CPL based code.  It provides the

 * following:

 *

 * o Includes some standard system include files, such as stdio, and stdlib.

 *

 * o Defines CPL_C_START, CPL_C_END macros.

 *

 * o Ensures that some other standard macros like NULL are defined.

 *

 * o Defines some portability stuff like CPL_MSB, or CPL_LSB.

 *

 * o Ensures that core types such as GBool, GInt32, GInt16, GUInt32, 

 *   GUInt16, and GByte are defined.

 *

 ******************************************************************************

 * Copyright (c) 1998, Frank Warmerdam

 *

 * Permission is hereby granted, free of charge, to any person obtaining a

 * copy of this software and associated documentation files (the "Software"),

 * to deal in the Software without restriction, including without limitation

 * the rights to use, copy, modify, merge, publish, distribute, sublicense,

 * and/or sell copies of the Software, and to permit persons to whom the

 * Software is furnished to do so, subject to the following conditions:

 *

 * The above copyright notice and this permission notice shall be included

 * in all copies or substantial portions of the Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL

 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING

 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER

 * DEALINGS IN THE SOFTWARE.

 ******************************************************************************

 *

 * $Log$

 * Revision 1.3  2006-10-03 07:05:18  nacho

 * *** empty log message ***

 *

 * Revision 1.1  2006/07/18 16:21:00  nacho

 * *** empty log message ***

 *

 * Revision 1.1  2006/06/29 16:23:27  nacho

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 *

 * Revision 1.2  2006/01/09 12:50:13  nacho

 * *** empty log message ***

 *

 * Revision 1.1  2005/07/27 08:22:55  igbrotru

 * *** empty log message ***

 *

 * Revision 1.1  2004/12/28 14:06:59  igbrotru

 * *** empty log message ***

 *

 * Revision 1.1  2004/10/28 12:08:47  igbrotru

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 *

 * Revision 1.1  2004/09/27 08:27:48  igbrotru

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 *

 * Revision 1.1  2004/09/08 12:39:04  igbrotru

 * *** empty log message ***

 *

 * Revision 1.36  2004/01/06 21:42:32  warmerda

 * "Fix" for bug 455 related to CPL_IS_LSB macro.

 *

 * Revision 1.35  2003/12/11 03:16:02  warmerda

 * Added CPL_IS_LSB macro with value 0 (MSB) or 1 (LSB).

 *

 * Revision 1.34  2003/09/08 11:11:05  dron

 * Include time.h and locale.h.

 *

 * Revision 1.33  2003/05/12 14:52:56  warmerda

 * Use _MSC_VER to test for Microsoft Visual C++ compiler.

 *

 * Revision 1.32  2002/10/24 20:24:40  warmerda

 * avoid using variable names likely to conflict in macros

 *

 * Revision 1.31  2002/07/15 13:31:46  warmerda

 * CPL_SWAPDOUBLE had alignment problem, use CPL_SWAP64PTR

 *

 * Revision 1.30  2002/04/18 18:55:06  dron

 * added <ctype.h> at the list of standard include files

 *

 * Revision 1.29  2002/01/17 01:40:27  warmerda

 * added _LARGEFILE64_SOURCE support

 *

 * Revision 1.28  2001/08/30 21:20:49  warmerda

 * expand tabs

 *

 * Revision 1.27  2001/07/18 04:00:49  warmerda

 * added CPL_CVSID

 *

 * Revision 1.26  2001/06/21 21:17:26  warmerda

 * added irix 64bit file api support

 *

 * Revision 1.25  2001/04/30 18:18:38  warmerda

 * added macos support, standard header

 *

 * Revision 1.24  2001/01/19 21:16:41  warmerda

 * expanded tabs

 *

 * Revision 1.23  2001/01/13 04:06:39  warmerda

 * added strings.h on AIX as per patch from Dale.

 *

 * Revision 1.22  2001/01/03 16:18:07  warmerda

 * added GUIntBig

 *

 * Revision 1.21  2000/10/20 04:20:33  warmerda

 * added SWAP16PTR macros

 *

 * Revision 1.20  2000/10/13 17:32:42  warmerda

 * check for unix instead of IGNORE_WIN32

 *

 * Revision 1.19  2000/09/25 19:58:43  warmerda

 * ensure win32 doesn't get defined in Cygnus builds

 *

 * Revision 1.18  2000/07/20 13:15:03  warmerda

 * don't redeclare CPL_DLL

 */

#ifndef CPL_BASE_H_INCLUDED

#define CPL_BASE_H_INCLUDED

/**

 * \file cpl_port.h

 *

 * Core portability definitions for CPL.

 *

 */

/* ==================================================================== */

/*      We will use macos_pre10 to indicate compilation with MacOS      */

/*      versions before MacOS X.                                        */

/* ==================================================================== */

#ifdef macintosh

#  define macos_pre10

#endif

/* ==================================================================== */

/*      We will use WIN32 as a standard windows define.                 */

/* ==================================================================== */

#if defined(_WIN32) && !defined(WIN32)

#  define WIN32

#endif

#if defined(_WINDOWS) && !defined(WIN32)

#  define WIN32

#endif

#include "cpl_config.h"

/* ==================================================================== */

/*      This will disable most WIN32 stuff in a Cygnus build which      */

/*      defines unix to 1.                                              */

/* ==================================================================== */

#ifdef unix

#  undef WIN32

#endif

#if defined(VSI_NEED_LARGEFILE64_SOURCE) && !defined(_LARGEFILE64_SOURCE)

#  define _LARGEFILE64_SOURCE 1

#endif

/* ==================================================================== */

/*      Standard include files.                                         */

/* ==================================================================== */

#include <stdio.h>

#include <stdlib.h>

#include <math.h>

#include <stdarg.h>

#include <string.h>

#include <ctype.h>

#include <errno.h>

#include <time.h>

#ifdef HAVE_LOCALE_H

#  include <locale.h>

#endif

#ifdef _AIX

#  include <strings.h>

#endif

#if defined(HAVE_LIBDBMALLOC) && defined(HAVE_DBMALLOC_H) && defined(DEBUG)

#  define DBMALLOC

#  include <dbmalloc.h>

#endif

#if !defined(DBMALLOC) && defined(HAVE_DMALLOC_H)

#  define USE_DMALLOC

#  include <dmalloc.h>

#endif

/* ==================================================================== */

/*      Base portability stuff ... this stuff may need to be            */

/*      modified for new platforms.                                     */

/* ==================================================================== */

/*---------------------------------------------------------------------

 *        types for 16 and 32 bits integers, etc...

 *--------------------------------------------------------------------*/

#if UINT_MAX == 65535

typedef long            GInt32;

typedef unsigned long   GUInt32;

#else

typedef int             GInt32;

typedef unsigned int    GUInt32;

#endif

typedef short           GInt16;

typedef unsigned short  GUInt16;

typedef unsigned char   GByte;

typedef int             GBool;

/* -------------------------------------------------------------------- */

/*      64bit support                                                   */

/* -------------------------------------------------------------------- */

#if defined(WIN32) && defined(_MSC_VER)

#define VSI_LARGE_API_SUPPORTED

typedef __int64          GIntBig;

typedef unsigned __int64 GUIntBig;

#elif HAVE_LONG_LONG

typedef long long        GIntBig;

typedef unsigned long long GUIntBig;

#else

typedef long             GIntBig;

typedef unsigned long    GUIntBig;

#endif

/* ==================================================================== */

/*      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

#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

#ifndef EQUAL

#ifdef WIN32

#  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_pre10

int strcasecmp(char * str1, char * str2);

int strncasecmp(char * str1, char * str2, int len);

char * strdup (char *instr);

#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 replace

m * 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 */