Is it possible to define an alias for a template-template parameter?
I\'m experimenting with template-template for fun. I have the following class:
template class T, typename R> class Unit
{
usi
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You cannot make an alias for
T. The following was discussed in the committee to make an alias forT(because a very late C++11 draft contained notes that stated that it is an alias forTwhich a Defect Report cleaned up).// Courtesy of @KerrekSB template class T, typename R> class Unit { templateusing MyTemplate = T; // ... // use e.g. MyTemplate to get T }; Note while
MyTemplateis the same type asT, thatMyTemplateis not the same asT. The wording at http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_active.html#1286 was supposed to change that, but in the last meeting it was considered to be a very special machinery that doesn't really fit what alias templates turned out to be (own templates), and it was pushed back to review. To get that effect, ausing MyTemplate = T;in future may fit the bill (if proposed and accepted, of course).
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