38 lines
1.7 KiB
C
38 lines
1.7 KiB
C
/*****************************************************************************
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Copyright (c) 2016, 2017, Oracle and/or its affiliates. All Rights Reserved.
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This program is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License, version 2.0, as published by the
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Free Software Foundation.
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This program is also distributed with certain software (including but not
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limited to OpenSSL) that is licensed under separate terms, as designated in a
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particular file or component or in included license documentation. The authors
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of MySQL hereby grant you an additional permission to link the program and
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your derivative works with the separately licensed software that they have
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included with MySQL.
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This program is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License, version 2.0,
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for more details.
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You should have received a copy of the GNU General Public License along with
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this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*****************************************************************************/
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#ifndef _ut0ut_h_
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#define _ut0ut_h_
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/*************************************************************/ /**
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Calculates the biggest multiple of m that is not bigger than n
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when m is a power of two. In other words, rounds n down to m * k.
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@param n in: number to round down
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@param m in: alignment, must be a power of two
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@return n rounded down to the biggest possible integer multiple of m */
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#define ut_2pow_round(n, m) ((n) & ~((m)-1))
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#endif // _ut0ut_h_
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