[Boost-users] [Spirit.Qi] I want to modify _val, how?

Subject: [Boost-users] [Spirit.Qi] I want to modify _val, how?
From: HT4N - (ht4n_at_[hidden])
Date: 2009-11-23 04:49:04

So, I was able to modify _1 (type of struct ptnode) by using a functor() (e.g. [_val = func(x, _1)] where the function will take a reference of _1 and do some modification to it and return (typeof(_1)&).
 
Can we also modify _val placeholder on the fly through semantic action? i.e. once _val = _1 executed, then modify the _val object
 
 
 
 
                                                
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