mirror of https://gitee.com/openkylin/dwz.git
64 lines
1.8 KiB
C
64 lines
1.8 KiB
C
/* Copyright (C) 2001-2021 Red Hat, Inc.
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Copyright (C) 2003 Free Software Foundation, Inc.
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Copyright (C) 2019-2021 SUSE LLC.
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Written by Jakub Jelinek <jakub@redhat.com>, 2012.
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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 as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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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 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; see the file COPYING. If not, write to
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the Free Software Foundation, 51 Franklin Street - Fifth Floor,
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Boston, MA 02110-1301, USA. */
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/* Utility macros. */
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#define IMPLIES(A, B) (!((A) && !(B)))
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#define MAX(A, B) ((A) > (B) ? (A) : (B))
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#define MIN(A, B) ((A) < (B) ? (A) : (B))
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#define XSTR(s) STR(s)
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#define STR(s) #s
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#ifndef USE_GNUC
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#ifdef __GNUC__
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#define USE_GNUC 1
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#else
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#define USE_GNUC 0
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#endif
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#endif
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#if USE_GNUC && __GNUC__ >= 3
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# define likely(x) __builtin_expect (!!(x), 1)
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# define unlikely(x) __builtin_expect (!!(x), 0)
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#else
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# define likely(x) (x)
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# define unlikely(x) (x)
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#endif
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#if USE_GNUC
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# define FORCE_INLINE __attribute__((always_inline))
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# define UNUSED __attribute__((unused))
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# define USED __attribute__((used))
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#else
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# define FORCE_INLINE
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# define UNUSED
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# define USED
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#endif
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#if USE_GNUC
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# define ALIGN_STRUCT(name)
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# define ALIGNOF_STRUCT(name) __alignof__ (struct name)
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#else
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# define ALIGN_STRUCT(name) struct align_##name { char c; struct name s; };
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# define ALIGNOF_STRUCT(name) offsetof (struct align_##name, s)
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#endif
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