`vector-sort!``<``v``#!optional``start``end`procedure`vector-stable-sort!``<``v``#!optional``start``end`procedureThese procedures sort their data in-place. (But note that

`vector-stable-sort!`may allocate temporary storage proportional to the size of the input--there are no known O(*n*lg*n*) stable vector sorting algorithms that run in constant space.) They return an unspecified value.The

`vector-sort!`procedure with no optional arguments is equivalent to the R6RS`vector-sort!`procedure.