Re: [boost] [PREDEF] Review for the Boost.Predef library by Rene Riviera

Subject: Re: [boost] [PREDEF] Review for the Boost.Predef library by Rene Riviera
From: Lars Viklund (zao_at_[hidden])
Date: 2012-02-18 16:18:17

On Sat, Feb 18, 2012 at 03:01:49PM -0600, Rene Rivera wrote:
> On 2/18/2012 8:36 AM, Klaim - Joël Lamotte wrote:
>> I guess it is ok to ask about details even if the library isn't in review
>> yet, right?
>
> Sure.. As it certainly won't prevent me from answering them ;-)
>
>> I'm not an expert in architecture so I hope I'm not asking
>> something obvious.
>>
>> My understanding is that for example if you're targeting classic PC
>> hardware, you'll get
>> BOOST_ARCHITECTURE_X86   for 32Bit OS
>> BOOST_ARCHITECTURE_AMD64 for 64Bit OS (running on 64bit processor).
>
> If you are targeting 64Bit you are more likely to get both  
> BOOST_ARCHITECTURE_AMD64 and BOOST_ARCHITECTURE_IA64.

The set of 64-bit architectures is a bit error-prone to enumerate
explicitly in user code, as the set will inevitably be either incomplete
or stale.

Just consider SPARC, IBM's POWER, MIPS, and not to mention the most
glorious DEC Alpha.

-- 
Lars Viklund | zao_at_[hidden]