id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc
4427,for_each does not take a non-const Function object,chetant@…,Kohei Takahashi,"I'm trying to create a type of deserializer, templated by fusion types. I have a function object that I initialize with an input stream and its templatized operator() takes a record out of that stream and assigns it to a given input type.

I was trying to use fusion::foreach for this:


{{{
FusionType fvar;
EntryReader er(stream);
// This should call er for each entry in fvar
for_each(fvar, er);

}}}

The problem is that for_each only accepts const references to Function objects, so EntryReader::operator()(T& out) cannot read from the stream. Is it possible to make the Function reference in for_each non-const?",Bugs,closed,Boost 1.68.0,fusion,Boost 1.43.0,Problem,fixed,for_each,