125 lines
4.1 KiB
C
125 lines
4.1 KiB
C
/*
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* CDE - Common Desktop Environment
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*
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* Copyright (c) 1993-2012, The Open Group. All rights reserved.
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*
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* These libraries and programs are free software; you can
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* redistribute them and/or modify them under the terms of the GNU
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* Lesser General Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* These libraries and programs are distributed in the hope that
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* they will be useful, but WITHOUT ANY WARRANTY; without even the
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* implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU Lesser General Public License for more
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* details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with these libraries and programs; if not, write
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* to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
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* Floor, Boston, MA 02110-1301 USA
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*/
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/*
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* $XConsortium: macro.h /main/4 1996/07/18 14:59:08 drk $
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*
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* Copyright (c) 1993 HAL Computer Systems International, Ltd.
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* All rights reserved. Unpublished -- rights reserved under
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* the Copyright Laws of the United States. USE OF A COPYRIGHT
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* NOTICE IS PRECAUTIONARY ONLY AND DOES NOT IMPLY PUBLICATION
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* OR DISCLOSURE.
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*
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* THIS SOFTWARE CONTAINS CONFIDENTIAL INFORMATION AND TRADE
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* SECRETS OF HAL COMPUTER SYSTEMS INTERNATIONAL, LTD. USE,
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* DISCLOSURE, OR REPRODUCTION IS PROHIBITED WITHOUT THE
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* PRIOR EXPRESS WRITTEN PERMISSION OF HAL COMPUTER SYSTEMS
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* INTERNATIONAL, LTD.
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*
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* RESTRICTED RIGHTS LEGEND
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* Use, duplication, or disclosure by the Government is subject
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* to the restrictions as set forth in subparagraph (c)(l)(ii)
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* of the Rights in Technical Data and Computer Software clause
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* at DFARS 252.227-7013.
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*
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* HAL COMPUTER SYSTEMS INTERNATIONAL, LTD.
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* 1315 Dell Avenue
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* Campbell, CA 95008
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*
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*/
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#ifndef _macro_h
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#define _macro_h 1
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/* bit manipulation macros */
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#define BIT_TEST(x, y) ( ((x) & (y)) == (y) )
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#define RESET_BIT(x, y) x &= (~(y))
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#define SET_BIT(x, y) x |= (y)
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#define BITS_IN(TYPE) ( 8*sizeof(TYPE) )
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/* comparison macros */
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#define INRANGE(x, low, high) ((x>=low) && (x<=high))
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#undef MIN
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#undef MAX
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#define MIN(x, y) (((x) < (y)) ? (x) : (y))
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#define MAX(x, y) (((x) > (y)) ? (x) : (y))
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#define TOBOOLEAN(x) ( ((x) == 1 ) ? true : false )
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#define TOBIT(x) ( ((x) == true ) ? 1 : 0 )
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/* secure XtNewString macro */
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#define XtsNewString(str) \
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((str) != NULL ? (char *)(memcpy(XtMalloc((unsigned)strlen(str) + 1), \
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str, (unsigned)strlen(str) + 1)) : NULL)
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/* little endian to/from big endian swap macros. */
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#define ORDER_SWAP_LONG(x) \
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{ \
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long tmp_long = x; \
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((unsigned char*)&x)[0] = ((unsigned char*)&tmp_long)[3]; \
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((unsigned char*)&x)[1] = ((unsigned char*)&tmp_long)[2]; \
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((unsigned char*)&x)[2] = ((unsigned char*)&tmp_long)[1]; \
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((unsigned char*)&x)[3] = ((unsigned char*)&tmp_long)[0]; \
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}
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#define ORDER_SWAP_FLOAT(x) \
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{ \
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float tmp_float = x; \
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((unsigned char*)&x)[0] = ((unsigned char*)&tmp_float)[3]; \
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((unsigned char*)&x)[1] = ((unsigned char*)&tmp_float)[2]; \
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((unsigned char*)&x)[2] = ((unsigned char*)&tmp_float)[1]; \
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((unsigned char*)&x)[3] = ((unsigned char*)&tmp_float)[0]; \
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}
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#define ORDER_SWAP_INT(x) \
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{ \
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int tmp_uint = x; \
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((unsigned char*)&x)[0] = ((unsigned char*)&tmp_uint)[3]; \
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((unsigned char*)&x)[1] = ((unsigned char*)&tmp_uint)[2]; \
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((unsigned char*)&x)[2] = ((unsigned char*)&tmp_uint)[1]; \
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((unsigned char*)&x)[3] = ((unsigned char*)&tmp_uint)[0]; \
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}
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#define ORDER_SWAP_UINT(x) \
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{ \
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unsigned int tmp_uint = x; \
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((unsigned char*)&x)[0] = ((unsigned char*)&tmp_uint)[3]; \
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((unsigned char*)&x)[1] = ((unsigned char*)&tmp_uint)[2]; \
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((unsigned char*)&x)[2] = ((unsigned char*)&tmp_uint)[1]; \
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((unsigned char*)&x)[3] = ((unsigned char*)&tmp_uint)[0]; \
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}
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#define ORDER_SWAP_USHORT(x) \
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{ \
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unsigned short tmp_ushort = x; \
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((unsigned char*)&x)[0] = ((unsigned char*)&tmp_ushort)[1]; \
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((unsigned char*)&x)[1] = ((unsigned char*)&tmp_ushort)[0]; \
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}
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#endif
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