[Info-vax] nice for VMS

[Arne Vajhøj]

Bob Koehler wrote:
> In article <49e521a4$0$90271$14726298 at news.sunsite.dk>, =?ISO-8859-1?Q?Arne_Vajh=F8j?= <arne at vajhoej.dk> writes:
>> Call it "lying to the compiler" or "utilizing pointers
>> manipulation to the max".
> 
>    A properly operating compiler will make no assumptions about
>    the content of a pointer.  If the compiler can establish by code
>    analysis that the pointer is never set to anything unaligned then
>    it's OK to generate code that assumes alignment.  If the pointer
>    is an argument or global the compiler should make no assumptions.
> 
>    But if the compiler does make incorrect assumptions and the resulting
>    code crashes you may not be able to get the vendor to fix it.

If we speak about C then I believe that type of pointer fun is
either undefined or implementation specific behavior, so there
would most certainly not be any point in complaining.

Arne