Re: boost::variant usage with boost::spirit broken in 1.68 but ok in 1.60?

Hi Seth,

We've the following issue https://wandbox.org/permlink/rKMDr78pc6REDp0z . It's exactly this one https://github.com/boostorg/spirit/issues/321 .

What I noticed: it is actually also broken in 1.60 on wandbox. It works on our 1.60 build with the actual code which uses lazy parsers everywhere. But I guess it was more like a bug that it worked for us in the first place.

So, how can I fix or circumvent the problem above? Or is boost::variant and boost::fusion::vector not supported with lazy parsers?

Mit freundlichen Grüßen / Best Regards / Cordialement,

Hermann SCHNEIDER



From: Seth <[email protected]>
Sent: Thursday, November 8, 2018 23:31
To: Spirit General Mailing List <[email protected]>
Subject: Re: [Spirit-general] boost::variant usage with boost::spirit broken in 1.68 but ok in 1.60?

On 06-11-18 15:59, SCHNEIDER Hermann wrote:
Does anyone have a clue why this worked with 1.60 but doesn't with 1.68. The change log between 1.60 and 1.68 doesn't show much related? Or does anyone know a quick workaround?

https://www.boost.org/users/history/version_1_62_0.html contains significant changes to Variant interface (surrounding construction and assignment).

Minor changes in https://www.boost.org/users/history/version_1_64_0.html too.

Spirit received some related changes in 1.67: https://github.com/boostorg/spirit/pull/201 (and #209)

This is most likely what impacts you. If you share the problem we could see it.

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