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% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/bitsort.R
\name{quicksort3}
\alias{quicksort3}
\title{Low-level sorting: threeway quicksort}
\usage{
quicksort3(x, na.last = NA)
}
\arguments{
\item{x}{an integer vector}
\item{na.last}{\code{NA} removes NAs, \code{FALSE} puts NAs at the beginning,
\code{TRUE} puts NAs at the end}
}
\value{
a sorted vector
}
\description{
In one pass over the vector \code{NA}s are handled according to parameter
\code{na.last} by \code{\link{range_sortna}}, then, if the vector is unsorted,
threeway quicksort is invoked.
}
\examples{
countsort(c(2L,0L,1L,NA,2L))
countsort(c(2L,0L,1L,NA,2L), na.last=TRUE)
countsort(c(2L,0L,1L,NA,2L), na.last=FALSE)
}
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