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https://github.com/servalproject/serval-dna.git
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91 lines
2.6 KiB
C
91 lines
2.6 KiB
C
/*
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Copyright (C) 2015 Serval Project Inc.
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Copyright (C) 2016 Flinders University
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) 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; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef __SERVAL_DNA__LANG_H
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#define __SERVAL_DNA__LANG_H
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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/* Conveniences to assist readability.
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*/
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typedef char bool_t;
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/* Useful macros not specific to Serval DNA that assist with using the C
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* language.
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*/
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// Concatenate two preprocessor symbols, eg, _APPEND(__FUNC__, __LINE__).
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#define __APPEND_(X,Y) X ## Y
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#define _APPEND(X,Y) __APPEND_(X,Y)
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// Number of elements in an array (Warning: does not work if A is a pointer!).
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#define NELS(A) (sizeof (A) / sizeof *(A))
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// Support for various GCC attributes.
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#ifdef HAVE_FUNC_ATTRIBUTE_ERROR
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# define __ATTRIBUTE_error(m) __error__(m)
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#else
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# define __ATTRIBUTE_error(m)
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#endif
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#ifdef HAVE_FUNC_ATTRIBUTE_FORMAT
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# define __ATTRIBUTE_format(a,b,c) __format__(a,b,c)
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#else
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# define __ATTRIBUTE_format(a,b,c)
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#endif
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#ifdef HAVE_FUNC_ATTRIBUTE_MALLOC
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# define __ATTRIBUTE_malloc __malloc__
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#else
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# define __ATTRIBUTE_malloc
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#endif
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#ifdef HAVE_FUNC_ATTRIBUTE_ALLOC_SIZE
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# define __ATTRIBUTE_alloc_size(n) __alloc_size__(n)
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#else
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# define __ATTRIBUTE_alloc_size(n)
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#endif
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// To suppress the "unused parameter" warning from -Wunused-parameter.
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#ifdef HAVE_FUNC_ATTRIBUTE_UNUSED
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# define __ATTRIBUTE_unused __unused__
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# define UNUSED(x) x __attribute__((__unused__))
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#else
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# define __ATTRIBUTE_unused
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# define UNUSED(x) x
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#endif
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// To suppress the "may fall through" warning from -Wimplicit-fallthrough.
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#ifdef HAVE_STMT_ATTRIBUTE_FALLTHROUGH
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# define __ATTRIBUTE_fallthrough __fallthrough__
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# define FALLTHROUGH __attribute__((__fallthrough__));
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#else
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# define __ATTRIBUTE_fallthrough
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// If there is no __fallthrough__ attribute, it is a bit of a pain, because
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// not all version of GCC will let us define the fall-through comment in a macro
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// like this for portability.
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# define FALLTHROUGH // fall-through
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#endif
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#endif // __SERVAL_DNA__LANG_H
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