R Under development (unstable) (2024-08-21 r87038 ucrt) -- "Unsuffered Consequences"
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> library(DPQ)
> 
> set.seed(17)
> x <- rlnorm(500)
> dg.R.1  <- sapply(x, dgamma.R, shape = 11.111)
> dg.R.1L <- sapply(x, dgamma.R, shape = 11.111, log = TRUE)
> ## print observed differences
> all.equal(dgamma  (x, 11.111          ), dg.R.1,  tolerance = 0) # 7.844e-16
[1] "Mean relative difference: 1.067218e-15"
> all.equal(dgamma  (x, 11.111, log=TRUE), dg.R.1L, tolerance = 0) # 2.148e-16
[1] "Mean relative difference: 2.30355e-16"
> stopifnot(exprs = {
+     all.equal(dg.R.1,  dgamma.R(x, 11.111          ), tolerance = 0) # just vectorization
+     all.equal(dg.R.1L, dgamma.R(x, 11.111, log=TRUE), tolerance = 0) #  "    "
+     all.equal(dg.R.1,  dgamma(x, 11.111          ), tolerance = 1e-14)
+     all.equal(dg.R.1L, dgamma(x, 11.111, log=TRUE), tolerance = 1e-14)
+     all.equal(dgamma  (x, 14.99), tolerance = 2e-15,
+               dgamma.R(x, 14.99, dpois_r_args = list(verbose=TRUE) -> dgR149))
+ })
dpois_raw(): M = 500
> 
> 
> 
> 
> proc.time()
   user  system elapsed 
   0.40    0.01    0.42