From: Alexey Dobriyan <[email protected]>
> Sent: 26 February 2021 23:02
>
> On Fri, Feb 26, 2021 at 01:53:48PM -0800, Linus Torvalds wrote:
> > On Fri, Feb 26, 2021 at 12:17 PM Alexey Dobriyan <[email protected]>
> > wrote:
> > >
> > > I want to sent treewide "#pragma once" conversion:
> >
> > Are there *any* advantages to it?
> >
> > It's non-standard,
>
> It is effectively standard:
> https://en.wikipedia.org/wiki/Pragma_once#Portability
At the top of the page....
In the C and C++ programming languages, pragma once is a non-standard but
widely supported
So non-standard :-)
And #pragma is ugly...
There are also times when an include guard has to be set in order to stop
a problematic inner file being included.
Perhaps only during hacking, but it is useful.
David
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