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74 lines
2.5 KiB
C
74 lines
2.5 KiB
C
/* Copyright (c) 2002,2007 Marek Michalkiewicz
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All rights reserved.
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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 are met:
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* 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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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the
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distribution.
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* Neither the name of the copyright holders nor the names of
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contributors may be used to endorse or promote products derived
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from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND 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 COPYRIGHT OWNER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE. */
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/* $Id: errno.h,v 1.6 2007/01/23 15:32:48 joerg_wunsch Exp $ */
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#ifndef __ERRNO_H_
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#define __ERRNO_H_ 1
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/** \file */
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/** \defgroup avr_errno <errno.h>: System Errors
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\code #include <errno.h>\endcode
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Some functions in the library set the global variable \c errno when an
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error occurs. The file, \c <errno.h>, provides symbolic names for various
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error codes.
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\warning The \c errno global variable is not safe to use in a threaded or
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multi-task system. A race condition can occur if a task is interrupted
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between the call which sets \c error and when the task examines \c
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errno. If another task changes \c errno during this time, the result will
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be incorrect for the interrupted task. */
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#ifdef __cplusplus
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extern "C" {
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#endif
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extern int errno;
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#ifdef __cplusplus
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}
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#endif
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/** \ingroup avr_errno
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\def EDOM
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Domain error. */
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#define EDOM 33
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/** \ingroup avr_errno
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\def ERANGE
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Range error. */
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#define ERANGE 34
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#endif
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