Messages in this thread | | | Date | Mon, 6 Jan 2014 10:20:25 +0100 (CET) | From | Julia Lawall <> | Subject | Re: [PATCH 4/11] use ether_addr_equal_64bits |
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On Mon, 6 Jan 2014, Johannes Berg wrote:
> On Mon, 2014-01-06 at 10:04 +0100, Julia Lawall wrote: > > > OK, the question was expressed badly. Is there any way to use the value > > to trigger an action at build time? The only way I kow to trigger an > > action is with #error, but #error is processed by cpp, which doesn't know > > about the size of types. > > That's exactly BUILD_BUG_ON(), I believe.
Maybe BUILD_BUG_ON_ZERO? It's goal seems to be to return an integer, which could then be used as an array size in a dummy structure. The structure declaration would not generate any code. The structure would have to have a name, thoough.
julia
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