Nice surprise with C++11
daniel.gutson at tallertechnologies.com
Thu Jul 30 14:31:15 UTC 2015
El 30/7/2015 11:27, "Joel Sherrill" <joel.sherrill at oarcorp.com> escribió:
> On 7/30/2015 9:08 AM, Daniel Gutson wrote:
>> IOW, I think that the double parens is only for decltype.
> Historical convention is to put parens around variable names
> in macros. What type of impact does this have?
If what I think is correct, then the impact os none since this a bug. But I
will look at it deeper once I arrive to the office in 1h. I will try with
different versions of gcc and clang and look into the C++ standard. So far
the (()) seems to be a decltype only thing, so this would be a frontend bug.
>> El 30/7/2015 11:06, escribió:
>> I don't it's a language issue: https://ideone.com/k1vz5d
>> El 30/7/2015 10:51, "Gedare Bloom" <gedare at gwu.edu <mailto:
gedare at gwu.edu>> escribió:
>> OK, I guess this makes the convention "minimize parentheses"
>> if we want C++11. I guess the basic problem is that constructions
>> where a single atom is in parens may produce different results
>> least an error is emitted rather than silent optimization..
>> On Thu, Jul 30, 2015 at 2:49 AM, Sebastian Huber
>> <sebastian.huber at embedded-brains.de <mailto:
sebastian.huber at embedded-brains.de>> wrote:
>> > Hello,
>> > please have a look at the following bug:
>> > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67064
>> > This is really nice in combination with defines and macros
that use ( ) to
>> > make sure the content stays together.
>> > --
>> > Sebastian Huber, embedded brains GmbH
>> > Address : Dornierstr. 4, D-82178 Puchheim, Germany
>> > Phone : +49 89 189 47 41-16
>> > Fax : +49 89 189 47 41-09
>> > E-Mail : sebastian.huber at embedded-brains.de <mailto:
sebastian.huber at embedded-brains.de>
>> > PGP : Public key available on request.
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