From: Peter Dimov (pdimov_at_[hidden])
Date: 2007-06-15 10:59:51
Eric Niebler wrote:
> Tobias Schwinger wrote:
>> Tobias Schwinger wrote:
>>> // [...] tricky nullary case with default ctor detection
>>> // omitted for simplicity
>> Doh! It's not possible to detect default constructibility, correct?
>> So we'd have to declare it as
>> template<typename T, typename DefaultConstructible =
>> mpl::false_> struct constructor;
> No. If the interface is "construct<T>(sequence)", then you can
> dispatch on the size of the sequence. You'd only try to default
> construct when you pass an empty sequence.
Why is there a need to detect a default constructor?
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