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	*/			*/
	#define testbyte(x) \			#define testbyte(x) \
	do { \			do { \
	if (p[x] == '\0') \			if (p[x] == '\0') \
	return (p - str + x); \			return (p - str + x); \
	} while (0)			} while (0)

	size_t			size_t
	strlen(const char *str)			(strlen)(const char *str)
	{			{
	const char *p;			const char *p;
	const unsigned long *lp;			const unsigned long *lp;
	long va, vb;			long va, vb;

	/*			/*
	* Before trying the hard (unaligned byte-by-byte access) way			* Before trying the hard (unaligned byte-by-byte access) way
	* to figure out whether there is a nul character, try to see			* to figure out whether there is a nul character, try to see
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