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/External/Mysql-5.0/include/my_attribute.h

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C++ Header | 63 lines | 22 code | 7 blank | 34 comment | 3 complexity | 4a2316683df70c3f38c6079daaaa3e0a MD5 | raw file
 1/* Copyright (C) 2000-2003 MySQL AB
 2
 3   This program is free software; you can redistribute it and/or modify
 4   it under the terms of the GNU General Public License as published by
 5   the Free Software Foundation; version 2 of the License.
 6
 7   This program is distributed in the hope that it will be useful,
 8   but WITHOUT ANY WARRANTY; without even the implied warranty of
 9   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
10   GNU General Public License for more details.
11
12   You should have received a copy of the GNU General Public License
13   along with this program; if not, write to the Free Software
14   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
15
16/*
17  Helper macros used for setting different __attributes__
18  on functions in a portable fashion
19*/
20
21#ifndef _my_attribute_h
22#define _my_attribute_h
23
24/*
25  Disable __attribute__() on gcc < 2.7, g++ < 3.4, and non-gcc compilers.
26  Some forms of __attribute__ are actually supported in earlier versions of
27  g++, but we just disable them all because we only use them to generate
28  compilation warnings.
29*/
30#ifndef __attribute__
31# if !defined(__GNUC__)
32#  define __attribute__(A)
33# elif GCC_VERSION < 2008
34#  define __attribute__(A)
35# elif defined(__cplusplus) && GCC_VERSION < 3004
36#  define __attribute__(A)
37# endif
38#endif
39
40/*
41  __attribute__((format(...))) is only supported in gcc >= 2.8 and g++ >= 3.4
42  But that's already covered by the __attribute__ tests above, so this is
43  just a convenience macro.
44*/
45#ifndef ATTRIBUTE_FORMAT
46# define ATTRIBUTE_FORMAT(style, m, n) __attribute__((format(style, m, n)))
47#endif
48
49/*
50
51   __attribute__((format(...))) on a function pointer is not supported
52   until  gcc 3.1
53*/
54#ifndef ATTRIBUTE_FORMAT_FPTR
55# if (GCC_VERSION >= 3001)
56#  define ATTRIBUTE_FORMAT_FPTR(style, m, n) ATTRIBUTE_FORMAT(style, m, n)
57# else
58#  define ATTRIBUTE_FORMAT_FPTR(style, m, n)
59# endif /* GNUC >= 3.1 */
60#endif
61
62
63#endif