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/******************************************************************************
* 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.
******************************************************************************
*
* cpl_port.h
*
* 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.
*
* $Log: cpl_port.h,v $
* Revision 1.9 1999/02/17 01:41:17 warmerda
* Added NULL.
*
* Revision 1.8 1999/02/02 21:32:38 warmerda
* Added CPL_{MSB,LSB}WORD{16,32} macros.
*
* Revision 1.7 1999/02/02 19:02:36 warmerda
* Removed duplicates of base types, and CPL_LSB
*
* Revision 1.6 1999/01/28 18:36:06 warmerda
* Ensure WIN32 is defined on Windows.
*
* Revision 1.5 1999/01/28 05:26:12 danmo
* Added byte swapping macros.
*
* Revision 1.4 1998/12/15 19:05:30 warmerda
* added errno.h
*
* Revision 1.3 1998/12/14 04:50:07 warmerda
* Added DBMALLOC support
*
* Revision 1.2 1998/12/04 21:38:40 danmo
* Changed str*casecmp() to str*icmp() for WIN32
*
* Revision 1.1 1998/12/03 18:26:02 warmerda
* New
*
*/
#ifndef CPL_BASE_H_INCLUDED
#define CPL_BASE_H_INCLUDED
/* ==================================================================== */
/* We will use WIN32 as a standard windows define. */
/* ==================================================================== */
#if defined(_WIN32) && !defined(WIN32)
# define WIN32
#endif
/* ==================================================================== */
/* Standard include files. */
/* ==================================================================== */
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <stdarg.h>
#include <string.h>
#include <errno.h>
#ifdef DBMALLOC
#include <dbmalloc.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;
/* ==================================================================== */
/* 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
/* # define CPL_DLL __declspec(dllexport) */
#define CPL_DLL
#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 NULL
#define NULL 0
#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
/*---------------------------------------------------------------------
* 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(CPL_LSB) || defined(CPL_MSB) )
#define CPL_LSB
#endif
/*---------------------------------------------------------------------
* Little endian <==> big endian byte swap macros.
*--------------------------------------------------------------------*/
#define CPL_SWAP16(x) \
((GUInt16)( \
(((GUInt16)(x) & 0x00ffU) << 8) | \
(((GUInt16)(x) & 0xff00U) >> 8) ))
#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) ))
/* 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) { \
double _tmp = *(double *)(p); \
((GByte *)(p))[0] = ((GByte *)&_tmp)[7]; \
((GByte *)(p))[1] = ((GByte *)&_tmp)[6]; \
((GByte *)(p))[2] = ((GByte *)&_tmp)[5]; \
((GByte *)(p))[3] = ((GByte *)&_tmp)[4]; \
((GByte *)(p))[4] = ((GByte *)&_tmp)[3]; \
((GByte *)(p))[5] = ((GByte *)&_tmp)[2]; \
((GByte *)(p))[6] = ((GByte *)&_tmp)[1]; \
((GByte *)(p))[7] = ((GByte *)&_tmp)[0]; \
}
#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)
#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)
#endif
#endif /* ndef CPL_BASE_H_INCLUDED */
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