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/*
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/*
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 * Copyright (c) 2005 Jakub Jermar
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 * Copyright (c) 2005 Jakub Jermar
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 * All rights reserved.
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 * All rights reserved.
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 *
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 *
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 * Redistribution and use in source and binary forms, with or without
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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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 * modification, are permitted provided that the following conditions
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 * are met:
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 * are met:
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 *
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 *
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 * - Redistributions of source code must retain the above copyright
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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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 *   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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 * - 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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 *   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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 *   documentation and/or other materials provided with the distribution.
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 * - The name of the author may not be used to endorse or promote products
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 * - The name of the author may not be used to endorse or promote products
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 *   derived from this software without specific prior written permission.
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 *   derived from this software without specific prior written permission.
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 *
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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 */
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/** @addtogroup libc
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/** @addtogroup libc
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 * @{
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 * @{
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 */
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 */
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/** @file
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/** @file
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 */
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 */
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#ifndef LIBC_ALIGN_H_
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#ifndef LIBC_ALIGN_H_
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#define LIBC_ALIGN_H_
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#define LIBC_ALIGN_H_
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/** Align to the nearest lower address.
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/** Align to the nearest lower address which is a power of two.
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 *
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 *
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 * @param s Address or size to be aligned.
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 * @param s     Address or size to be aligned.
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 * @param a Size of alignment, must be power of 2.
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 * @param a     Size of alignment, must be power of 2.
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 */
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 */
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#define ALIGN_DOWN(s, a)    ((s) & ~((a) - 1))
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#define ALIGN_DOWN(s, a)    ((s) & ~((a) - 1))
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/** Align to the nearest higher address.
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/** Align to the nearest higher address which is a power of two.
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 *
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 *
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 * @param s Address or size to be aligned.
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 * @param s     Address or size to be aligned.
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 * @param a Size of alignment, must be power of 2.
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 * @param a     Size of alignment, must be power of 2.
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 */
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 */
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#define ALIGN_UP(s, a)      ((long)((s) + ((a) - 1)) & ~((long) (a) - 1))
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#define ALIGN_UP(s, a)      ((long)((s) + ((a) - 1)) & ~((long) (a) - 1))
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- 
 
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/** Round up to the nearest higher boundary.
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 *
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 * @param n     Number to be aligned.
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 * @param b     Boundary, arbitrary unsigned number.
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 */
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#define ROUND_UP(n, b)      (((n) / (b) + ((n) % (b) != 0)) * (b))
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#endif
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#endif
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/** @}
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/** @}
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 */
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 */
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