135 lines
4.7 KiB
C
135 lines
4.7 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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/* $XConsortium: cdefs.h /main/4 1996/06/11 17:13:31 cde-hal $ */
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/*
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* Copyright (c) 1991, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)cdefs.h 8.1 (Berkeley) 6/2/93
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*/
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#ifndef _CDEFS_H_
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#define _CDEFS_H_
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#if defined(__cplusplus)
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#ifndef __BEGIN_DECLS
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#define __BEGIN_DECLS extern "C" {
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#endif
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#ifndef __END_DECLS
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#define __END_DECLS };
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#endif
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#else
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#undef __BEGIN_DECLS
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#define __BEGIN_DECLS
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#undef __END_DECLS
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#define __END_DECLS
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#endif
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/*
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* The __CONCAT macro is used to concatenate parts of symbol names, e.g.
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* with "#define OLD(foo) __CONCAT(old,foo)", OLD(foo) produces oldfoo.
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* The __CONCAT macro is a bit tricky -- make sure you don't put spaces
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* in between its arguments. __CONCAT can also concatenate double-quoted
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* strings produced by the __STRING macro, but this only works with ANSI C.
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*/
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#if defined(__STDC__) || defined(__cplusplus)
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#ifdef __P
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#undef __P
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#endif
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#define __P(protos) protos /* full-blown ANSI C */
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#ifndef __CONCAT
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#define __CONCAT(x,y) x ## y
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#endif
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#define __STRING(x) #x
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#else /* !(__STDC__ || __cplusplus) */
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#ifdef __P
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#undef __P
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#endif
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#define __P(protos) () /* traditional C preprocessor */
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#define __CONCAT(x,y) x/**/y
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#define __STRING(x) "x"
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#ifdef __GNUC__
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#define const __const /* GCC: ANSI C with -traditional */
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#define inline __inline
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#define signed __signed
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#define volatile __volatile
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#else /* !__GNUC__ */
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#define const /* delete ANSI C keywords */
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#define inline
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#define signed
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#define volatile
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#endif /* !__GNUC__ */
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#endif /* !(__STDC__ || __cplusplus) */
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/*
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* GCC has extensions for declaring functions as `pure' (always returns
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* the same value given the same inputs, i.e., has no external state and
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* no side effects) and `dead' (nonreturning). These mainly affect
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* optimization and warnings. Unfortunately, GCC complains if these are
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* used under strict ANSI mode (`gcc -ansi -pedantic'), hence we need to
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* define them only if compiling without this.
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*/
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#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
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#undef __dead
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#define __dead __volatile
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#ifndef __pure
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#define __pure __const
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#endif
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#else
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#define __dead
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#define __pure
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#endif
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#endif /* !_CDEFS_H_ */
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