Re: [Boost-users] [ICL] Can't use an enum as map value

That's run-time knowledge that the compiler can't infer or use. Investigate whether it's possible to avoid this behaviour via some policy

Probably, but the documentation is not very clear about the policies.

or if it might be acceptable to have a bogus operator+= defined for your type somewhere where it can be found.

By using the insert() method, instead of add(), I can get what I wanted (see the other thred I initiated), because the insert() method isn't annoyed by the enum type.

If none of those are acceptable, you could always consider patching the library to provide such a policy or trait.

I'd like to, but I dont' think my employer will agree... (time is money !).