1/* 2 * $Id: bits.h,v 1.10 2006/01/30 23:07:57 mclark Exp $ 3 * 4 * Copyright (c) 2004, 2005 Metaparadigm Pte. Ltd. 5 * Michael Clark <michael@metaparadigm.com> 6 * 7 * This library is free software; you can redistribute it and/or modify 8 * it under the terms of the MIT license. See COPYING for details. 9 * 10 */ 11 12#ifndef _bits_h_ 13#define _bits_h_ 14 15#ifndef json_min 16#define json_min(a,b) ((a) < (b) ? (a) : (b)) 17#endif 18 19#ifndef json_max 20#define json_max(a,b) ((a) > (b) ? (a) : (b)) 21#endif 22 23#define hexdigit(x) (((x) <= '9') ? (x) - '0' : ((x) & 7) + 9) 24#define error_ptr(error) ((void*)error) 25#define error_description(error) (json_tokener_errors[error]) 26#define is_error(ptr) (ptr == NULL) 27 28#endif 29