clib_memory_block_length

	length.i4.v = clib_memory_block_length(address.i1p.v)

	This routine returns the length of a block of dynamic memory
	allocated by a previous call to either clib_malloc, clib_calloc,
	or clib_realloc.  If an invalid pointer is passed or memory
	diagnostics are not on, a value of zero will be returned.

	address		address of previously allocated memory

	This function returns status values as follows:

	0			invalid pointer or memory diagnostics are off
	otherwise		length of the allocated block in bytes

	This function requires the following include files:

	clib_memory_h

	Related functions:

	clib_malloc, clib_calloc, clib_realloc, clib_free,
	memory_diagnostic_control_c, clib_memory_info, memory_analyze

	C/C++ usage:

	char	*address;
	int	length;

	length = clib_memory_block_length(address);