Re: [Boost-users] dynamic_properties and std::vector attributes

On Fri, 11 Jun 2010, Dominik Dahlem wrote:

Jeremiah Willcock writes:

...

What error message do you get from the vector<int> example? I do not see any obvious reason that a vector would behave differently from a string, although the lack of a streaming operator or something might break it. Is the issue in creating a dynamic_properties object (or adding your property map to it) or in the output of the properties?

The issue is in creating the dynamic_properties object. The complete error message is as follows:

The dynamic_properties object needs to know how to print your property (here vector<int>) to a stream and read it back; the lack of that is causing the error message. The best way to solve the problem is to create a new object that wraps a vector<int> and has customized operator<<() and operator>>(); you can then use that as your property type. You cannot add those operators to vector<int> itself AFAIK. -- Jeremiah Willcock