Re: [boost] Re: enable_if and BOOST_NO_SFINAE

From: Peter Dimov (pdimov_at_[hidden])
Date: 2003-12-03 17:28:18

David Abrahams wrote:
> Jaakko Jarvi <jajarvi_at_[hidden]> writes:
>
>>
>>>> #   if __GNUC__ == 2 && __GNUC_MINOR__ <= 95
>>>
>>> The regression tests seem to disagree that 2.95.3 can handle
>>> enable_if, and in Function I'm using:
>>>
>>> #if BOOST_WORKAROUND(__GNUC__, < 3)
>>
>>>> #   if __GNUC__ == 2 && __GNUC_MINOR__ <= 95
>>
>> This should flag 2.95.3 as BOOST_NO_SFINAE ???
>
> I think these tests are equivalent.

<= 2.95 means "we know it fails with 2.95; we assume that it doesn't fail
with later versions."

< 3 means "we know that the first version to support it is 3".