[Info-vax] New VSI post on Youtube

Arne Vajhøj arne at vajhoej.dk
Thu Sep 5 13:30:55 EDT 2024


On 8/14/2024 2:07 PM, Robert A. Brooks wrote:
> On 8/14/2024 1:48 PM, Simon Clubley wrote:
>> It would be interesting to
>> know the reasons for the failures however and what is different about the
>> x86-64 environment that resulted in test differences that ended up being
>> classified as failures.
> 
> I don't know specifically, but with my very limited experience with C++, 
> the
> X86_64 compiler is much less accepting of the syntax that the Alpha and 
> IA64 compilers
> accepted.
> 
> Some of the changes are pretty mechanical (casting or simple 
> refactoring); some are not.
> 
> Don't ask me to describe the "some are not" part, because I'm getting 
> help to deal wit
> those.

Being more strict is just one thing.

I also believe it is missing some of the VMS specific extensions.

And it has different size of long and pointers. Causing problems
for two cases:
* code that make implicit assumptions that those are 32 bit
* mixing C and C++

Arne



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