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/**************************************************************************
*
* Copyright 2015 VMware, Inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
#ifndef NIR_VLA_H
#define NIR_VLA_H
#include "c99_alloca.h"
/* Declare a variable length array, with no initialization */
#define NIR_VLA(_type, _name, _length) \
_type *_name = alloca((_length) * sizeof *_name)
/* Declare a variable length array, and initialize it with the given byte.
*
* _length is evaluated twice, so expressions with side-effects must be
* avoided.
*/
#define NIR_VLA_FILL(_type, _name, _length, _byte) \
_type *_name = memset(alloca((_length) * sizeof *_name), _byte, (_length) * sizeof *_name)
/* Declare a variable length array, and zero it.
*
* Just like NIR_VLA_FILL, _length is evaluated twice, so expressions with
* side-effects must be avoided.
*/
#define NIR_VLA_ZERO(_type, _name, _length) \
NIR_VLA_FILL(_type, _name, _length, 0)
#endif /* NIR_VLA_H */
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