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Re: c/10360: __alignof__(double) answer 8
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From: |
Richard Frith-Macdonald |
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Subject: |
Re: c/10360: __alignof__(double) answer 8 |
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Date: |
Thu, 10 Apr 2003 07:26:16 +0100 |
On Thursday, April 10, 2003, at 06:46 am, Chris Beaham wrote:
Good Morning Richard
Hi, thanks for the response.
I am not by any means a compiler expert, but I assume that the
alignment is dependent upon the CPU architecture, for the most part
the cache hardware
Sure.
and therefore the preferred alignment is always the same across all
platforms
That bit doesn't make sense to me ...
in what sense can it be said to be preferred?
and the true alignment machine dependent.
Yes ... but the result of using __alignof__ is/is-expected-to-be
machine dependent, in the same way that you expect
sizeof(int) to be machine dependent.
What is the point of __alignof__ returning some abstract 'preferred'
value which is not actually used on your machine?