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- Committer: Bazaar Package Importer
- Author(s): Paul Wise
- Date: 2005-11-15 15:43:39 UTC
- Revision ID: james.westby@ubuntu.com-20051115154339-tmt82iiu3dwtk94a
Tags: upstream-1.0.0
Import upstream version 1.0.0
added
removed
cpl_port.h
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/******************************************************************************
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* Copyright (c) 1998, Frank Warmerdam
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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******************************************************************************
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*
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* cpl_port.h
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*
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* Include file providing low level portability services for CPL. This
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* should be the first include file for any CPL based code. It provides the
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* following:
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*
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* o Includes some standard system include files, such as stdio, and stdlib.
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*
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* o Defines CPL_C_START, CPL_C_END macros.
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*
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* o Ensures that some other standard macros like NULL are defined.
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*
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* o Defines some portability stuff like CPL_MSB, or CPL_LSB.
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*
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* o Ensures that core types such as GBool, GInt32, GInt16, GUInt32,
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* GUInt16, and GByte are defined.
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*
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* $Log: cpl_port.h,v $
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* Revision 1.9 1999/02/17 01:41:17 warmerda
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* Added NULL.
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*
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* Revision 1.8 1999/02/02 21:32:38 warmerda
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* Added CPL_{MSB,LSB}WORD{16,32} macros.
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*
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* Revision 1.7 1999/02/02 19:02:36 warmerda
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* Removed duplicates of base types, and CPL_LSB
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*
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* Revision 1.6 1999/01/28 18:36:06 warmerda
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* Ensure WIN32 is defined on Windows.
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*
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* Revision 1.5 1999/01/28 05:26:12 danmo
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* Added byte swapping macros.
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*
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* Revision 1.4 1998/12/15 19:05:30 warmerda
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* added errno.h
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*
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* Revision 1.3 1998/12/14 04:50:07 warmerda
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* Added DBMALLOC support
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*
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* Revision 1.2 1998/12/04 21:38:40 danmo
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* Changed str*casecmp() to str*icmp() for WIN32
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*
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* Revision 1.1 1998/12/03 18:26:02 warmerda
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* New
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*
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*/
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#ifndef CPL_BASE_H_INCLUDED
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#define CPL_BASE_H_INCLUDED
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/* ==================================================================== */
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/* We will use WIN32 as a standard windows define. */
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/* ==================================================================== */
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#if defined(_WIN32) && !defined(WIN32)
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# define WIN32
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#endif
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/* ==================================================================== */
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/* Standard include files. */
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/* ==================================================================== */
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#include <stdio.h>
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#include <stdlib.h>
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#include <math.h>
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#include <stdarg.h>
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#include <string.h>
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#include <errno.h>
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#ifdef DBMALLOC
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#include <dbmalloc.h>
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#endif
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/* ==================================================================== */
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/* Base portability stuff ... this stuff may need to be */
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/* modified for new platforms. */
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/* ==================================================================== */
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/*---------------------------------------------------------------------
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* types for 16 and 32 bits integers, etc...
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*--------------------------------------------------------------------*/
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#if UINT_MAX == 65535
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typedef long GInt32;
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typedef unsigned long GUInt32;
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#else
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typedef int GInt32;
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typedef unsigned int GUInt32;
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#endif
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typedef short GInt16;
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typedef unsigned short GUInt16;
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typedef unsigned char GByte;
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typedef int GBool;
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/* ==================================================================== */
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/* Other standard services. */
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/* ==================================================================== */
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#ifdef __cplusplus
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# define CPL_C_START extern "C" {
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# define CPL_C_END }
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#else
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# define CPL_C_START
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# define CPL_C_END
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#endif
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/* # define CPL_DLL __declspec(dllexport) */
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#define CPL_DLL
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#ifndef NULL
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# define NULL 0
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#endif
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#ifndef FALSE
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# define FALSE 0
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#endif
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#ifndef TRUE
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# define TRUE 1
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#endif
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#ifndef MAX
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# define MIN(a,b) ((a<b) ? a : b)
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# define MAX(a,b) ((a>b) ? a : b)
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#endif
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#ifndef NULL
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#define NULL 0
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#endif
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#ifndef ABS
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# define ABS(x) ((x<0) ? (-1*(x)) : x)
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#endif
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#ifndef EQUAL
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#ifdef WIN32
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# define EQUALN(a,b,n) (strnicmp(a,b,n)==0)
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# define EQUAL(a,b) (stricmp(a,b)==0)
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#else
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# define EQUALN(a,b,n) (strncasecmp(a,b,n)==0)
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# define EQUAL(a,b) (strcasecmp(a,b)==0)
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#endif
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#endif
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/*---------------------------------------------------------------------
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* CPL_LSB and CPL_MSB
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* Only one of these 2 macros should be defined and specifies the byte
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* ordering for the current platform.
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* This should be defined in the Makefile, but if it is not then
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* the default is CPL_LSB (Intel ordering, LSB first).
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*--------------------------------------------------------------------*/
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#if ! ( defined(CPL_LSB) || defined(CPL_MSB) )
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#define CPL_LSB
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#endif
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/*---------------------------------------------------------------------
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* Little endian <==> big endian byte swap macros.
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*--------------------------------------------------------------------*/
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#define CPL_SWAP16(x) \
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((GUInt16)( \
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(((GUInt16)(x) & 0x00ffU) << 8) | \
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(((GUInt16)(x) & 0xff00U) >> 8) ))
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#define CPL_SWAP32(x) \
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((GUInt32)( \
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(((GUInt32)(x) & (GUInt32)0x000000ffUL) << 24) | \
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(((GUInt32)(x) & (GUInt32)0x0000ff00UL) << 8) | \
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(((GUInt32)(x) & (GUInt32)0x00ff0000UL) >> 8) | \
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(((GUInt32)(x) & (GUInt32)0xff000000UL) >> 24) ))
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/* Until we have a safe 64 bits integer data type defined, we'll replace
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m * this version of the CPL_SWAP64() macro with a less efficient one.
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*/
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/*
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#define CPL_SWAP64(x) \
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((uint64)( \
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(uint64)(((uint64)(x) & (uint64)0x00000000000000ffULL) << 56) | \
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(uint64)(((uint64)(x) & (uint64)0x000000000000ff00ULL) << 40) | \
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(uint64)(((uint64)(x) & (uint64)0x0000000000ff0000ULL) << 24) | \
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(uint64)(((uint64)(x) & (uint64)0x00000000ff000000ULL) << 8) | \
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(uint64)(((uint64)(x) & (uint64)0x000000ff00000000ULL) >> 8) | \
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(uint64)(((uint64)(x) & (uint64)0x0000ff0000000000ULL) >> 24) | \
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(uint64)(((uint64)(x) & (uint64)0x00ff000000000000ULL) >> 40) | \
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(uint64)(((uint64)(x) & (uint64)0xff00000000000000ULL) >> 56) ))
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*/
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#define CPL_SWAPDOUBLE(p) { \
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double _tmp = *(double *)(p); \
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((GByte *)(p))[0] = ((GByte *)&_tmp)[7]; \
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((GByte *)(p))[1] = ((GByte *)&_tmp)[6]; \
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((GByte *)(p))[2] = ((GByte *)&_tmp)[5]; \
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((GByte *)(p))[3] = ((GByte *)&_tmp)[4]; \
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((GByte *)(p))[4] = ((GByte *)&_tmp)[3]; \
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((GByte *)(p))[5] = ((GByte *)&_tmp)[2]; \
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((GByte *)(p))[6] = ((GByte *)&_tmp)[1]; \
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((GByte *)(p))[7] = ((GByte *)&_tmp)[0]; \
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}
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#ifdef CPL_MSB
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# define CPL_MSBWORD16(x) (x)
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# define CPL_LSBWORD16(x) CPL_SWAP16(x)
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# define CPL_MSBWORD32(x) (x)
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# define CPL_LSBWORD32(x) CPL_SWAP32(x)
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#else
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# define CPL_LSBWORD16(x) (x)
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# define CPL_MSBWORD16(x) CPL_SWAP16(x)
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# define CPL_LSBWORD32(x) (x)
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# define CPL_MSBWORD32(x) CPL_SWAP32(x)
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#endif
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#endif /* ndef CPL_BASE_H_INCLUDED */
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