> length alongside with the (binary safe) string itself, What is the type of the length? What is the type of the length+string? What lengths is it limited t

> length alongside with the (binary safe) string itself, What is the type of the length? What is the type of the length+string? What lengths is it limited to? Do we need a 32 bit and 64 bit version? And 128+ bit version? Can you provide an implementation? What is its best and worst case efficiency? What is its expected efficiency for the typical string operations?