Hi all,

I am running into C stack usage problems when using the R package `Runuran`

in RStudio. The following MWE is taken from `?pinv.new`

:

```
require(Runuran)
## Create a sample of size 100 for N(0,1)
pdf <- function (x) { exp(-0.5*x^2) }
gen <- pinv.new(pdf = pdf, lb = -Inf, ub = Inf)
```

```
Error: C stack usage 7969212 is too close to the limit
```

The C Stack information is

```
> Cstack_info()
size current direction eval_depth
7969177 12880 1 2
```

The interesting thing is: The same code works perfectly fine in R via terminal or via the R GUI, just not in RStudio.

I have uninstalled and re-installed both R and RStudio, the problem continued to exist. My current specifics: R version 4.0.2 (2020-06-22), RStudio version 1.3.1093, macOS Catalina (10.15.6).

I appreciate any advice!

ADDED: When I am using RMarkdown in RStudio with the exact same code, the error does not occur! Now I am completely clueless.