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Subject: Re: [boost] [review][variant2] visit needs better user documentation
From: Peter Dimov (pdimov_at_[hidden])
Date: 2019-04-06 13:44:11

Larry Evans wrote:
> The documents here:
> suggest visit can take any number of arguments. However, the attached
> fails to compile when defined(ARGS5). The user docs should make clear
> that there is a limit to the number of arguments.

The error has nothing to do with number of arguments. The function object
needs to be callable with any combination of types; the first variant, for
instance, may hold a string, and therefore, the function object must be able
to accept a string as its first argument.

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