Re: [boost] [Fit] formal review starts today

On Saturday, March 5, 2016 at 5:15:01 AM UTC-6, Rob Stewart wrote:

On March 4, 2016 3:27:08 PM EST, Paul Fultz II javascript:> wrote:

...

The library could switch to using `Callable`, if everyone feels that is better. However, I honestly prefer to make mutable explicit. I would like to hear feedback from other reviewers as well.

If your library only requires Callable, then users can supply a Callable or a ConstCallable. When you require a ConstCallable, they cannot supply a Callable. There may be valid reasons for that restriction in certain cases, but they should be documented rather than just imposed as a convention.

Yes and if there are valid reasons for the mutable function object then the `mutable_` adaptor can be used. The mutable adaptor makes a mutable function object ConstCallable. Mutability is not prohibited, its just explicit.

___ Rob

(Sent from my portable computation engine)

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