Re: [boost] [proto] Can't use functions in expressions?

Subject: Re: [boost] [proto] Can't use functions in expressions?
From: John Maddock (boost.regex_at_[hidden])
Date: 2011-09-01 13:05:27

>> BTW I couldn't find any examples of using proto::function in a grammar, 
>> it
>> wasn't obvious to me what it's template arguments should be, or indeed
>> whether this actually enabled the function call operator rather than my 
>> use
>> case?
>
> Just keep in mind, that proto::function is a expression that can have 
> variadic
> children. The first is the function expression, and the remaining the 
> function
> arguments. proto::vararg might help here.

Got it, this needs to be documented under 
http://www.boost.org/doc/libs/1_47_0/doc/html/boost/proto/function.html 
though, and an example wouldn't harm either ;-)

John.