Re: [Boost-users] serialization::make_nvp parameters

Subject: Re: [Boost-users] serialization::make_nvp parameters
From: Steven Watanabe (watanabesj_at_[hidden])
Date: 2009-09-08 13:03:13

AMDG

Hammond, John (UK New Malden) wrote:
> I am hoping someone could answer a question I have regarding the
> make_nvp(..) function of the Serialization library.
>
> I am attempting to serialize a number of objects within a loop, and the
> name of the name-value-pair is to be assigned dynamically depending on
> some values taken from within the object that is to be serialized. I am
> currently performing the actions below:
>
> my_obj  = GetMyObj(..);
>
> std::string temp = str( boost::format("x:%1% y:%2%") % _x % _y );
>   

The space may be a problem.  Boost.Serialization sticks the
name directly into the XML, and <x:1 y:2></x:1 y:2> is bad.

> const char* const_temp = temp.c_str( );
>
> ar & boost::serialization::make_nvp(const_temp, my_obj);
>
>  
>
> This code compiles but will cause an exception on make_nvp. As far as I
> can tell, I am providing the function with the const char* that it
> requires, so am very confused as to why it is not performing as
> expected.
>   

In Christ,
Steven Watanabe