Why writeln can't be converted to nothrow with just catching of StdioException

[Basile B.]

On Monday, 21 February 2022 at 10:49:13 UTC, partypooper wrote:
> Do I completely not understand what is `nothrow` or why I can't 
> make function nothrow with just catching StdioException?
>
> This doesn't work
> ```d
> nothrow void hello() {
>   try {
>     writeln("Hello, World!")
>   } catch (StdioException) {}
> }
> ```
> This doest work
> ```d
> nothrow void hello() {
>   try {
>     writeln("Hello, World!")
>   } catch (Exception) {}
> }
> ```

I believe it's because it can throw ConvException as well ;)