[Development] QtCS: Notes from Modern C++ session

[Olivier Goffart]

On Friday 12. June 2015 07:37:15 Thiago Macieira wrote:
> On Friday 12 June 2015 12:12:17 Olivier Goffart wrote:
> > Which mean using things like std::function, std::unique_ptr, in our ABI.
> > Should we allow that?
> 
> The problem is deciding between std::function and std::__1::function.

That's not up to us to decide. That's up to the compiler/build system.

But the question is real:
Should we allow std library types in our ABI?

Cons:
 - We break binary compatibility when changing the std library or when the std 
library breaks compatibility

Pros:
 - We don't have to re-invent every wheels.  (std::function for example would 
be quite useful and re implementing it ourself is not trivial.)


Given that most users are using the std library anyway so they will have to 
recompile their application as they change standard library, I think the 
limitation is hurting us more than the benefit.


-- 
Olivier 

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