mirror of
https://github.com/reactos/reactos.git
synced 2024-08-28 22:28:36 +00:00
115 lines
3.4 KiB
C
115 lines
3.4 KiB
C
![]() |
/* @(#)intcvt.h 1.8 13/10/26 Copyright 1986-2013 J. Schilling */
|
||
|
/*
|
||
|
* Definitions for conversion to/from integer data types of various size.
|
||
|
*
|
||
|
* Copyright (c) 1986-2013 J. Schilling
|
||
|
*/
|
||
|
/*
|
||
|
* The contents of this file are subject to the terms of the
|
||
|
* Common Development and Distribution License, Version 1.0 only
|
||
|
* (the "License"). You may not use this file except in compliance
|
||
|
* with the License.
|
||
|
*
|
||
|
* See the file CDDL.Schily.txt in this distribution for details.
|
||
|
* A copy of the CDDL is also available via the Internet at
|
||
|
* http://www.opensource.org/licenses/cddl1.txt
|
||
|
*
|
||
|
* When distributing Covered Code, include this CDDL HEADER in each
|
||
|
* file and include the License file CDDL.Schily.txt from this distribution.
|
||
|
*/
|
||
|
|
||
|
#ifndef _SCHILY_INTCVT_H
|
||
|
#define _SCHILY_INTCVT_H
|
||
|
|
||
|
#ifndef _SCHILY_MCONFIG_H
|
||
|
#include <schily/mconfig.h>
|
||
|
#endif
|
||
|
#ifndef _SCHILY_UTYPES_H
|
||
|
#include <schily/utypes.h>
|
||
|
#endif
|
||
|
|
||
|
#define i_to_2_byte(a, i) (((Uchar *)(a))[0] = ((i) >> 8) & 0xFF,\
|
||
|
((Uchar *)(a))[1] = (i) & 0xFF)
|
||
|
|
||
|
#define i_to_3_byte(a, i) (((Uchar *)(a))[0] = ((i) >> 16)& 0xFF,\
|
||
|
((Uchar *)(a))[1] = ((i) >> 8) & 0xFF,\
|
||
|
((Uchar *)(a))[2] = (i) & 0xFF)
|
||
|
|
||
|
#define i_to_4_byte(a, i) (((Uchar *)(a))[0] = ((i) >> 24)& 0xFF,\
|
||
|
((Uchar *)(a))[1] = ((i) >> 16)& 0xFF,\
|
||
|
((Uchar *)(a))[2] = ((i) >> 8) & 0xFF,\
|
||
|
((Uchar *)(a))[3] = (i) & 0xFF)
|
||
|
|
||
|
|
||
|
|
||
|
#define a_to_byte(a) (((Int8_t *)a)[0])
|
||
|
|
||
|
#define a_to_u_byte(a) ((UInt8_t) \
|
||
|
(((Uchar *)a)[0] & 0xFF))
|
||
|
|
||
|
#define a_to_u_2_byte(a) ((UInt16_t) \
|
||
|
((((Uchar *)a)[1] & 0xFF) | \
|
||
|
(((Uchar *)a)[0] << 8 & 0xFF00)))
|
||
|
|
||
|
#define a_to_2_byte(a) (int)(Int16_t)a_to_u_2_byte(a)
|
||
|
|
||
|
#define a_to_u_3_byte(a) ((Ulong) \
|
||
|
((((Uchar *)a)[2] & 0xFF) | \
|
||
|
(((Uchar *)a)[1] << 8 & 0xFF00) | \
|
||
|
(((Uchar *)a)[0] << 16 & 0xFF0000)))
|
||
|
|
||
|
#define a_to_3_byte(a) a_to_u_3_byte(a) /* XXX signed version? */
|
||
|
|
||
|
#ifdef __STDC__
|
||
|
# define __TOP_4BYTE 0xFF000000UL
|
||
|
#else
|
||
|
# define __TOP_4BYTE 0xFF000000
|
||
|
#endif
|
||
|
|
||
|
#define a_to_u_4_byte(a) ((Ulong) \
|
||
|
((((Uchar*)a)[3] & 0xFF) | \
|
||
|
(((Uchar*)a)[2] << 8 & 0xFF00) | \
|
||
|
(((Uchar*)a)[1] << 16 & 0xFF0000) | \
|
||
|
(((Uchar*)a)[0] << 24 & __TOP_4BYTE)))
|
||
|
|
||
|
#define a_to_4_byte(a) (long)(Int32_t)a_to_u_4_byte(a)
|
||
|
|
||
|
/*
|
||
|
* Little Endian versions of above macros
|
||
|
*/
|
||
|
#define li_to_2_byte(a, i) (((Uchar *)(a))[1] = ((i) >> 8) & 0xFF,\
|
||
|
((Uchar *)(a))[0] = (i) & 0xFF)
|
||
|
|
||
|
#define li_to_3_byte(a, i) (((Uchar *)(a))[2] = ((i) >> 16)& 0xFF,\
|
||
|
((Uchar *)(a))[1] = ((i) >> 8) & 0xFF,\
|
||
|
((Uchar *)(a))[0] = (i) & 0xFF)
|
||
|
|
||
|
#define li_to_4_byte(a, i) (((Uchar *)(a))[3] = ((i) >> 24)& 0xFF,\
|
||
|
((Uchar *)(a))[2] = ((i) >> 16)& 0xFF,\
|
||
|
((Uchar *)(a))[1] = ((i) >> 8) & 0xFF,\
|
||
|
((Uchar *)(a))[0] = (i) & 0xFF)
|
||
|
|
||
|
|
||
|
#define la_to_u_2_byte(a) ((UInt16_t) \
|
||
|
((((Uchar*)a)[0] & 0xFF) | \
|
||
|
(((Uchar*)a)[1] << 8 & 0xFF00)))
|
||
|
|
||
|
#define la_to_2_byte(a) (int)(Int16_t)la_to_u_2_byte(a)
|
||
|
|
||
|
#define la_to_u_3_byte(a) ((Ulong) \
|
||
|
((((Uchar*)a)[0] & 0xFF) | \
|
||
|
(((Uchar*)a)[1] << 8 & 0xFF00) | \
|
||
|
(((Uchar*)a)[2] << 16 & 0xFF0000)))
|
||
|
|
||
|
#define la_to_3_byte(a) la_to_u_3_byte(a) /* XXX signed version? */
|
||
|
|
||
|
#define la_to_u_4_byte(a) ((Ulong) \
|
||
|
((((Uchar*)a)[0] & 0xFF) | \
|
||
|
(((Uchar*)a)[1] << 8 & 0xFF00) | \
|
||
|
(((Uchar*)a)[2] << 16 & 0xFF0000) | \
|
||
|
(((Uchar*)a)[3] << 24 & __TOP_4BYTE)))
|
||
|
|
||
|
#define la_to_4_byte(a) (long)(Int32_t)la_to_u_4_byte(a)
|
||
|
|
||
|
#endif /* _SCHILY_INTCVT_H */
|