R Under development (unstable) (2023-05-27 r84465 ucrt) -- "Unsuffered Consequences"
Copyright (C) 2023 The R Foundation for Statistical Computing
Platform: x86_64-w64-mingw32/x64

R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.

R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.

Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.

> options("rgdal_show_exportToProj4_warnings"="none")
> library(sp)
The legacy packages maptools, rgdal, and rgeos, underpinning this package
will retire shortly. Please refer to R-spatial evolution reports on
https://r-spatial.org/r/2023/05/15/evolution4.html for details.
This package is now running under evolution status 0 
> 
> # open polygon:
> print(point.in.polygon(1:10,1:10,c(3,5,5,3),c(3,3,5,5)))
 [1] 0 0 3 1 3 0 0 0 0 0
> # closed polygon:
> print(point.in.polygon(1:10,rep(4,10),c(3,5,5,3,3),c(3,3,5,5,3)))
 [1] 0 0 2 1 2 0 0 0 0 0
> 
> proc.time()
   user  system elapsed 
   0.23    0.06    0.28