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130 lines
3.8 KiB
C
130 lines
3.8 KiB
C
/* FriBidi
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* common.h - common include for library sources
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*
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* Author:
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* Behdad Esfahbod, 2004
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*
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* Copyright (C) 2004 Sharif FarsiWeb, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library, in a file named COPYING; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA
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*
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* For licensing issues, contact <fribidi.license@gmail.com>.
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*/
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#ifndef _COMMON_H
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#define _COMMON_H
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#include <fribidi-common.h>
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#ifndef false
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# define false (0)
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# endif /* !false */
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# ifndef true
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# define true (!false)
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# endif /* !true */
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#ifndef NULL
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# ifdef __cplusplus
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# define NULL (0L)
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# else /* !__cplusplus */
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# define NULL ((void*) 0)
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# endif /* !__cplusplus */
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#endif /* !NULL */
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/* fribidi_malloc and fribidi_free should be used instead of malloc and free.
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* No need to include any headers. */
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#ifndef fribidi_malloc
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# if HAVE_STDLIB_H
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# ifndef __FRIBIDI_DOC
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# include <stdlib.h>
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# endif /* __FRIBIDI_DOC */
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# define fribidi_malloc malloc
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# else /* !HAVE_STDLIB_H */
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# define fribidi_malloc (void *) malloc
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# endif /* !HAVE_STDLIB_H */
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# define fribidi_free free
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#else /* fribidi_malloc */
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# ifndef fribidi_free
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# error "You should define fribidi_free too when you define fribidi_malloc."
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# endif /* !fribidi_free */
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#endif /* fribidi_malloc */
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#ifdef HAVE_STRING_H
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# if !STDC_HEADERS && HAVE_MEMORY_H
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# include <memory.h>
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# endif
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# include <string.h>
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#endif
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#ifdef HAVE_STRINGS_H
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# include <strings.h>
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#endif
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/* FRIBIDI_BEGIN_STMT should be used at the beginning of your macro
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* definitions that are to behave like simple statements. Use
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* FRIBIDI_END_STMT at the end of the macro after the semicolon or brace. */
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#ifndef FRIBIDI_BEGIN_STMT
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# define FRIBIDI_BEGIN_STMT do {
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# define FRIBIDI_END_STMT } while (0)
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#endif /* !FRIBIDI_BEGIN_STMT */
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/* LIKEYLY and UNLIKELY are used to give a hint on branch prediction to the
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* compiler. */
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#ifndef LIKELY
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# if defined(__GNUC__) && (__GNUC__ > 2) && defined(__OPTIMIZE__)
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# define FRIBIDI_BOOLEAN_EXPR(expr) \
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__extension__ ({ \
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int fribidi_bool_var; \
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if (expr) \
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fribidi_bool_var = 1; \
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else \
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fribidi_bool_var = 0; \
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fribidi_bool_var; \
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})
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# define LIKELY(expr) (__builtin_expect (FRIBIDI_BOOLEAN_EXPR(expr), 1))
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# define UNLIKELY(expr) (__builtin_expect (FRIBIDI_BOOLEAN_EXPR(expr), 0))
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# else
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# define LIKELY
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# define UNLIKELY
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# endif /* _GNUC_ */
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#endif /* !LIKELY */
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#ifndef FRIBIDI_EMPTY_STMT
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# define FRIBIDI_EMPTY_STMT FRIBIDI_BEGIN_STMT (void) 0; FRIBIDI_END_STMT
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#endif /* !FRIBIDI_EMPTY_STMT */
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#ifdef HAVE_STRINGIZE
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# define STRINGIZE(symbol) #symbol
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#else /* !HAVE_STRINGIZE */
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# error "No stringize operator available?"
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#endif /* !HAVE_STRINGIZE */
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/* As per recommendation of GNU Coding Standards. */
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#ifndef _GNU_SOURCE
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# define _GNU_SOURCE
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#endif /* !_GNU_SOURCE */
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/* We respect our own rules. */
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#ifndef FRIBIDI_NO_DEPRECATED
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# define FRIBIDI_NO_DEPRECATED
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#endif /* !FRIBIDI_NO_DEPRECATED */
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#include "debug.h"
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#endif /* !_COMMON_H */
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/* Editor directions:
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* vim:textwidth=78:tabstop=8:shiftwidth=2:autoindent:cindent
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*/
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