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Re: Work on Qt 5.8 has begun :)

Subject: Re: Work on Qt 5.8 has begun :)
by ChrisH on 2017/2/8 17:52:17

@alfkil Quote:
why would you support 64 bit atomic operations on a 32 bit platform.....?

I'm definitely no expert, but it's not uncommon to use 64-bit numbers on a 32-bit platform. So it seems perfectly reasonable (to me) that someone might want atomic 64-bit operations, particularly if the code was ported from a 64-bit platform.

I have no idea if it's possible to support 64-bit atomic operations on our PPC processors, but I don't see why not (it just requires that 64-bit numbers can be written atomically, which a 32-bit CPU might easily support, it the designer's wanted it to).

But maybe I am missing something really obvious. I'm just an arm-chair programmer, as far as atomic stuff is concerned...
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