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			flags.h
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<pre>
/*====================================================================*
 *
 *   flags.h - bitmap flagword definitions and declarations;
 *
 *   Motley Tools by Charles Maier &lt;cmaier@cmassoc.net&gt;;
 *   Copyright 2001-2006 by Charles Maier Associates;
 *   Licensed under the Internet Software Consortium License;
 *
 *--------------------------------------------------------------------*/

#ifndef FLAGS_HEADER
#define FLAGS_HEADER

/*====================================================================*
 *   system header files;
 *--------------------------------------------------------------------*/

#include &lt;stdint.h&gt;

/*====================================================================*
 *   define macros for common, but error prone, bitmap operations;
 *--------------------------------------------------------------------*/

#define _bits(object) (sizeof (object) &lt;&lt; 3)
#define _getbits(map,pos,cnt) (((map)&gt;&gt;((pos)-(cnt)+1))&amp;~(~(0)&lt;&lt;(cnt)))

#define _bitmask(bits) ~(~(0) &lt;&lt; bits)

#define _setbits(flag,mask) flag |=  (mask)
#define _clrbits(flag,mask) flag &amp;= ~(mask)
#define _toggle(flag,mask)  flag = ~(flag) &amp; ~(mask)

#define _anyset(flag,mask) ((flag) &amp; (mask)) != (0)
#define _anyclr(flag,mask) ((flag) &amp; (mask)) != (mask)
#define _allset(flag,mask) ((flag) &amp; (mask)) == (mask)
#define _allclr(flag,mask) ((flag) &amp; (mask)) == (0)

// #define _notset(flag,mask) ((flag) &amp; (mask)) == (0)

#define _anybits(flag,mask) ((flag) &amp; (mask)) != (0)
#define _allbits(flag,mask) ((flag) &amp; (mask)) == (mask)

#define _clean(flag,mask) ((flag) &amp; ~(mask)) == (0)
#define _dirty(flag,mask) ((flag) &amp; ~(mask)) != (0)

/*====================================================================*
 *
 *--------------------------------------------------------------------*/

void set32bitmap (uint32_t * map, unsigned bit);
void clr32bitmap (uint32_t * map, unsigned bit);

/*====================================================================*
 *   end definitions and declarations;
 *--------------------------------------------------------------------*/

#endif


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