Reproduced on latest Catalina beta and R 4.0.0 and latest RStudio devel build (it crashes the session).
On Tue, May 19, 2020 at 7:39 AM Gu, Zuguang <z...@dkfz-heidelberg.de> wrote: > > Hi, > > > I found in grid package, if the graphic parameters have zero length, R > crashes. In the > > following code, I only tested `grid.rect()` and the `fill` parameter, but I > think it should > > be similar as other grid graphic functions. > > > In `gpar()` function, the graphic parameters are not allowed to have zero > length, but > we can make them with zero length by first generating a `gpar` object and > then subsetting > with zero length index, such as follows: > > ``` > > library(grid) > > gp = gpar(fill = 1) > > grid.rect(gp = gp[integer(0)]) > ``` > > After Executing the code, R crashes with message "Floating point exception: > 8?". > > If I set the value of `fill` to an integer, the following code causes an > error with a > not informative error message. > > > library(grid) > > gp = gpar(fill = as.integer(1)) > > grid.rect(gp = gp[integer(0)]) > Error in grid.Call.graphics(C_rect, x$x, x$y, x$width, x$height, > resolveHJust(x$just, : > numerical color values must be >= 0, found -192882464 > > But sometimes it also causes R to crash. > > > My session info: > > > ``` > > > sessionInfo() > R version 4.0.0 (2020-04-24) > Platform: x86_64-apple-darwin17.0 (64-bit) > Running under: macOS Catalina 10.15.4 > > Matrix products: default > BLAS: > /Library/Frameworks/R.framework/Versions/4.0/Resources/lib/libRblas.dylib > LAPACK: > /Library/Frameworks/R.framework/Versions/4.0/Resources/lib/libRlapack.dylib > > locale: > [1] en_GB.UTF-8/en_GB.UTF-8/en_GB.UTF-8/C/en_GB.UTF-8/en_GB.UTF-8 > > attached base packages: > [1] stats graphics grDevices utils datasets methods base > > other attached packages: > [1] colorout_1.2-2 > > loaded via a namespace (and not attached): > [1] compiler_4.0.0? > ``` > > > Best regards, > Zuguang Gu? > > > [[alternative HTML version deleted]] > > ______________________________________________ > R-devel@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-devel ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
