mirror of
https://github.com/json-c/json-c.git
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7b899b6dc5
* fix type passed to printbuf_memappend in json_tokener
* update autotools bootstrap instructions in README
Michael Clark <michael@metaparadigm.com>
git-svn-id: http://svn.metaparadigm.com/svn/json-c/trunk@6 327403b1-1117-474d-bef2-5cb71233fd97
58 lines
1.6 KiB
C
58 lines
1.6 KiB
C
/*
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* $Id: bits.h,v 1.7 2005/07/15 02:40:44 mclark Exp $
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*
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* Copyright Metaparadigm Pte. Ltd. 2004.
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* Michael Clark <michael@metaparadigm.com>
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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 (LGPL)
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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: http://www.gnu.org/
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*
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*/
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#ifndef _bits_h_
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#define _bits_h_
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#include "config.h"
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#if STDC_HEADERS
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# include <stddef.h>
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#endif /* STDC_HEADERS */
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/* CAW: wrapped in ifndef's to make win32 compliant
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** this fails to take over GCC specifics, but this
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** seems to be unimportant.
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*/
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#ifndef min
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#define min(x,y) ({ \
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typeof(x) _x = (x); \
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typeof(y) _y = (y); \
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(void) (&_x == &_y); \
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_x < _y ? _x : _y; })
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#endif
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#ifndef max
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#define max(x,y) ({ \
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typeof(x) _x = (x); \
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typeof(y) _y = (y); \
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(void) (&_x == &_y); \
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_x > _y ? _x : _y; })
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#endif
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#define hexdigit(x) (((x) <= '9') ? (x) - '0' : ((x) & 7) + 9)
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#define error_ptr(error) ((void*)error)
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#ifdef _MSC_VER
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#define is_error(ptr) ((UINT_PTR)ptr > (UINT_PTR)-4000L)
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#else
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#define is_error(ptr) ((unsigned long)ptr > (unsigned long)-4000L)
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#endif
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#endif
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