Re: [Boost-users] [uuid] to string problem

On Wed, May 12, 2010 at 6:05 AM, Thorsten Ottosen wrote:

Emil Dotchevski skrev:

...

On Tue, May 11, 2010 at 6:00 AM, Andy Tompkins wrote:

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Hmm, I haven't really given it much thought.  Since it doesn't need to be a member function, I would lean toward a standalone function.  Do any other libraries have a similar function?  I would likely create:

template std::basic_string to_basic_string(boost::uuids::uuid const& u);

as well as,

std::string to_string(boost::uuids::uuid const& u); std::wstring to_wstring(boost::uuids::uuid conts& u);

+1, unqualified call to to_string is how Boost Exception converts to string arbitrary objects stored in exception objects. If you use this form and someone adds a UUID to a boost::exception, it'll appear correctly in the output from boost::diagnostic_information.

-1

a to_string() member is IMO much preferred for simplicity and the encapsulation perspective.

A member function is incompatible with built-in types, so the question is how would you convert an int to string?

There seem to be no standard in Boost for this :-(, e.g. filesystem uses ::string(), format uses ::str().

This is another example why a member function is not practical, you can't have all 3rd-party types in the world agree on the name of a member function. However, you can provide a namespace-scope function overload for any type. Emil Dotchevski Reverge Studios, Inc. http://www.revergestudios.com/reblog/index.php?n=ReCode