Re: [boost] [variant] awkward recursion

Subject: Re: [boost] [variant] awkward recursion
From: Dave Abrahams (dave_at_[hidden])
Date: 2012-10-30 10:08:28

on Mon Oct 29 2012, Mathias Gaunard <mathias.gaunard-AT-ens-lyon.org> wrote:

>>> Keep in mind that instantiating a standard container with an
>>> incomplete type will yield undefined behavior, and that `variant` has
>>> to instantiate both `object` and `array` to know their size. In my own
>>> JSON attempt I have used Boost.Containers, which do guarantee defined
>>> behavior when instantiated with incomplete types.
>>
>> I haven't instantiated anything at that point in the code, though.
>
> According to the code you provided, you do instantiate the std::vector
> class template with an incomplete type in both the no_wrapper and
> wrapper cases.

You're right :-(

-- 
Dave Abrahams
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