MySQL
8.2.0
Source Code Documentation
my_pointer_arithmetic.h
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#ifndef MY_POINTER_ARITHMETIC_INCLUDED
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#define MY_POINTER_ARITHMETIC_INCLUDED
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/*
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Copyright (c) 2016, 2023, Oracle and/or its affiliates.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License, version 2.0,
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as published by the Free Software Foundation.
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This program is also distributed with certain software (including
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but not limited to OpenSSL) that is licensed under separate terms,
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as designated in a particular file or component or in included license
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documentation. The authors of MySQL hereby grant you an additional
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permission to link the program and your derivative works with the
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separately licensed software that they have included with MySQL.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License, version 2.0, for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
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#include <stdint.h>
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/**
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@file include/my_pointer_arithmetic.h
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Some macros for dealing with pointer arithmetic, e.g., aligning
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of buffers to a given size.
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*/
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#define MY_ALIGN(A, L) (((A) + (L)-1) & ~((L)-1))
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#define ALIGN_SIZE(A) MY_ALIGN((A), sizeof(double))
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#ifdef __cplusplus
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template
<
typename
T>
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bool
is_aligned_to
(T *t,
int
increment) {
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return
reinterpret_cast<
uintptr_t
>
(t) % increment == 0;
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}
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template
<
typename
T>
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bool
is_aligned
(T *t) {
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return
is_aligned_to
(t,
alignof
(T));
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}
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#endif
// __cplusplus
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#endif
// MY_POINTER_ARITHMETIC_INCLUDED
is_aligned
bool is_aligned(T *t)
Definition:
my_pointer_arithmetic.h:45
is_aligned_to
bool is_aligned_to(T *t, int increment)
Definition:
my_pointer_arithmetic.h:40
include
my_pointer_arithmetic.h
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