Re: master 37889523278: Add new `swap` macro and use it

[Gregory Heytings <gregory@heytings.org>]

>>> As regards __typeof__, I recall a comment in a GLib header to the 
>>> effect that it was unusable under compilers older than GCC 4.8, so we 
>>> should also avoid it in the PGTK port.
>>
>> Which GLib header was that?
>
> /usr/include/glib-2.0/glib/glib-typeof.h.
>

That information is completely irrelevant in the matter at hand.  If, 
instead of throwing it in this discussion, and expecting someone else to 
debunk it, you had taken the time to check what the words "We can only use 
__typeof__ on GCC >= 4.8" in that header mean, you would have seen that:

- this is about GCC < 4.8 (ten year old compilers)

- on a specific platform (PowerPC, which is rarely used nowadays)

- on which GCC displays a bogus "value computed is not used" warning (a 
warning, not an error!)

- when __typeof__ is used in a cast operation on the return type of a 
function.

That's a far cry, to say the least, from "__typeof__ is unusable under 
compilers older than GCC 4.8".

Much ado about nothing, again.