Re: [boost] [future] direct construct from value

From: Johan Torp (johan.torp_at_[hidden])
Date: 2008-05-16 05:14:58

Frank Mori Hess wrote:
> 
> I've just noticed that neither Anthony's or Braddock's future libraries
> seem 
> to support construction of a future directly from a value, like
> 
> future<int> fut_int(5);
> 
> Adding such a constructor gives support for implicit conversion of a value
> of 
> type T to a future<T>.  So a function which takes futures as arguments can 
> also seamlessly accept values:
> 
> future<void> my_func(future<int> f1, future<int> f2);
> 
> my_func(fut_int, 3);
> 

Adding an explicit constructor is one thing. Allowing implicit type
conversions is more dangeous and needs to be thought through carefully.
Could you make do with explicit constructing?

my_func(fut_int, future<int>(3));

Johan

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