clang-UBSAN warning on CRAN

clang-UBSAN raises the following warning:

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> library(testthat)
> library(kernelboot)
> 
> test_check("kernelboot")
/data/gannet/ripley/R/test-clang/Rcpp/include/Rcpp/sugar/operators/Comparator_With_One_Value.h:59:10: runtime error: nan is outside the range of representable values of type 'int'
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior /data/gannet/ripley/R/test-clang/Rcpp/include/Rcpp/sugar/operators/Comparator_With_One_Value.h:59:10 in 
══ testthat results  ═══════════════════════════════════════════════════════════
OK: 345 SKIPPED: 3 FAILED: 0
> 
> proc.time()
   user  system elapsed 
 18.506   0.523  20.211

I wasn't able to reproduce it yet.

twolodzko / kernelboot

clang-UBSAN warning on CRAN #5