[Boost-users] Testing that a particular operator is not alllowed

Subject: [Boost-users] Testing that a particular operator is not alllowed
From: Edward Diener (eldiener_at_[hidden])
Date: 2010-07-08 23:29:36

Is there any way to test at compile time, using a Boost construct,  that 
a particular operator is not allowable for a given type, other than 
simply compile the code and have the compiler generate an error message 
when trying to use an operator on an object of that type ?

I am writing some tests for an MPL library on which I am working where I 
want to make sure that a given operator for my template class 
instantiation object will fail to compile, but I would like to do this 
in such a way that I can generate a compile time message for the failure 
rather than an actual compiler error. I suspect this is not possible but 
I thought I would ask anyway.