AVR-LibC
2.2.0
Standard C library for AVR-GCC
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include
alloca.h
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/* Copyright (c) 2007, Dmitry Xmelkov
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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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/* $Id$ */
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#ifndef _ALLOCA_H
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#define _ALLOCA_H 1
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#include <stddef.h>
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/** \defgroup alloca <alloca.h>: Allocate space in the stack */
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/** \ingroup alloca
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\brief Allocate \a __size bytes of space in the stack frame of the caller.
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This temporary space is automatically freed when the function that
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called alloca() returns to its caller. AVR-LibC defines the alloca() as
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a macro, which is translated into the inlined \c __builtin_alloca()
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function. The fact that the code is inlined, means that it is impossible
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to take the address of this function, or to change its behaviour by
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linking with a different library.
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\return alloca() returns a pointer to the beginning of the allocated
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space. If the allocation causes stack overflow, program behaviour is
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undefined.
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\warning Avoid use alloca() inside the list of arguments of a function
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call.
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*/
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extern
void
*alloca (
size_t
__size);
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#define alloca(size) __builtin_alloca (size)
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#endif
/* alloca.h */
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