Re: [boost] [preprocessor] Maybe a improvement of BOOST_PP_IS_EMPTY

Subject: Re: [boost] [preprocessor] Maybe a improvement of BOOST_PP_IS_EMPTY
From: Zhenghui Zhou (zhouzhenghui_at_[hidden])
Date: 2012-11-22 06:05:52

Forgive my ignorant. Thanks very much, though it hasn't resloved all of my
problems.

2012/11/22 Edward Diener <eldiener_at_[hidden]>

> On 11/20/2012 7:36 PM, Edward Diener wrote:
>
>> On 11/20/2012 7:43 AM, Zhenghui Zhou wrote:
>>
>>> As I known, the undocument interface BOOST_PP_IS_EMPTY is not a general
>>> implementation to condider emptiness. There is a undefined behaviours
>>> when
>>> token concatenation return a invalid preprocessing token.
>>> Particularly, gcc
>>> restriction reports error.
>>>
>>
>> See BOOST_IS_EMPTY in my variadic macros library in the sandbox.
>>
>
> Sorry that should be BOOST_VMD_IS_EMPTY.
>
>
>
>
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