Method head

GPRS/ByteVector.h:253–253

pat 2-2012: I am modifying this to use the refcnts, so to get a segment with an incremented refcnt, use: alias().segment(...) ByteVector alias() { return segment(0,size()); }

	// a segment with an incremented refcnt, use: alias().segment(...)
	//ByteVector alias() { return segment(0,size()); }
	ByteVector head(size_t span) const { return segment(0,span); }
	//const ByteVector headTemp(size_t span) const { return segmentTemp(0,span); }
	ByteVector tail(size_t start) const { return segment(start,size()-start); }
	//const ByteVector tailTemp(size_t start) const { return segmentTemp(start,size()-start); }