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			strdecr.c
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<pre>
/*====================================================================*
 *
 *   signed strdecr (void * memory, size_t extent, byte min, byte max);
 *
 *   memory.h
 *
 *   decrement a multi-byte memory region; start at max and reset at
 *   min; return -1 if all bytes are min;
 *
 *   Motley Tools by Charles Maier &lt;cmaier@cmassoc.net&gt;;
 *   Copyright (c) 2001-2006 by Charles Maier Associates;
 *   Licensed under the Internet Software Consortium License;
 *
 *--------------------------------------------------------------------*/

#ifndef STRDECR_SOURCE
#define STRDECR_SOURCE

#include &quot;../tools/memory.h&quot;

signed strdecr (void * memory, register size_t extent, register byte min, register byte max)

{
	register byte * offset = (byte *)(memory);
	while (extent--)
	{
		if (-- offset [extent] &gt;= min)
		{
			return (0);
		}
		offset [extent] = max;
	}
	return (-1);
}

#endif


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