printf format string validation is here

[12345swordy]

On Saturday, 22 February 2020 at 08:06:59 UTC, Walter Bright 
wrote:
>   https://github.com/dlang/dmd/pull/10812
>
> I wrote it yesterday, and spend today fixing all the sloppy 
> code in the test suite with bad formats, and submitting PRs for 
> projects with bad formats.
>
> Unfortunately, Rainer says that Microsoft VS doesn't support 
> the printf `z` specifier (despite it being standardized in 
> 1999) in versions before 2015.
>
>   https://github.com/dlang/druntime/pull/2947
>
> Is it time to throw old VS support under the bus?

We couldn't use clang-cl for this?

-Alex