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78 lines
2.5 KiB
C
78 lines
2.5 KiB
C
/*
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* Copyright (C) 2019 BlueKitchen GmbH
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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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*
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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. 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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* 4. Any redistribution, use, or modification is done solely for
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* personal benefit and not for any commercial purpose or for
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* monetary gain.
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*
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* THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS
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* RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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* 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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* Please inquire about commercial licensing options at
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* contact@bluekitchen-gmbh.com
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*
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*/
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/*
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* btstack_bool.h
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*
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* Provide bool type */
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#ifndef BTSTACK_BOOL_H
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#define BTSTACK_BOOL_H
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#if !defined(__cplusplus)
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//
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// Check for C99
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// see: https://sourceforge.net/p/predef/wiki/Standards/
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//
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#if defined(__STDC__)
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# if defined(__STDC_VERSION__)
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# if (__STDC_VERSION__ >= 199901L)
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# define PREDEF_STANDARD_C_1999
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# endif
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# endif
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#endif /* __STDC__ */
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// define boolean type - required for MISRA-C 2012 Essential Type System
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#ifdef PREDEF_STANDARD_C_1999
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// use <stdbool.h> if C99 or higher
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# include <stdbool.h>
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#else /* PREDEF_STANDARD_C_1999 */
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// backport for pre-c99 compilers
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#define bool unsigned char
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#define false 0
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#define true 1
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#endif /* PREDEF_STANDARD_C_1999 */
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#endif /* __cplusplus */
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#endif /* BTSTACK_BOOL_H */
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