R Under development (unstable) (2026-01-18 r89306 ucrt) -- "Unsuffered Consequences"
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> library( "miscTools" )
> 
> a <- 1:10
> attr( a, "min" ) <- 1
> attr( a, "max" ) <- 10
> sum(a)
[1] 55
> sumKeepAttr(a)
[1] 55
attr(,"min")
[1] 1
attr(,"max")
[1] 10
> 
> proc.time()
   user  system elapsed 
   0.14    0.03    0.15