[Info-vax] [OT?] Should compiler warnings be treated as errors ?

[Simon Clubley]

On 2021-09-13, John Reagan <xyzzy1959 at gmail.com> wrote:
> On Sunday, September 12, 2021 at 9:04:00 AM UTC-4, Simon Clubley wrote:
>> 
>> OTOH, going the other way, I wonder if the LLVM compilers (with the 
>> normal LLVM frontends instead of hybrid GEM frontend/LLVM backend) 
>> will find things in the VMS source code that DEC C might have missed.
>
> Compiler(S) plural?  
>

Yes, although I should have expanded on the explicit reference to DEC C.
Don't you have Fortran code within the VMS code base ?

I did think of Pascal as well but I don't think there's a production-ready
Pascal frontend for LLVM, although Free Pascal appears to be doing some
initial work with LLVM.

> Are you asking could we take OpenVMS C source code and run it through the clang 
> compiler in "C mode"?  That probably won't work in general as the code often uses 
> features not in clang (#pragma linkage, /STANDARD=VAXC, etc.).   There might 
> be some C code that doesn't rely on such things that could be compiled with 
> "clang-in-C-mode" but I haven't thought that far into the future.  
>

Yes, that's what I was thinking of, and the same for any Fortran code
as well as any Pascal code _if_ there turned out to be a version of
Pascal for LLVM after all that supports the VMS Pascal syntax.

Simon.

-- 
Simon Clubley, clubley at remove_me.eisner.decus.org-Earth.UFP
Walking destinations on a map are further away than they appear.