On 31/07/07, Stefan Seefeld <seefeld@sympatico.ca> wrote:
I see ! I hadn't realized that the third parameter type was deduced from the argument. (Instead I was fixated on the use of 'NULL' instead of '0'.)
And NULL is, of course, #defined to 0. On a slightly off-topic but perhaps more interesting note, what's the rationale for having a separate template parameter for the type of the initializing element? If it used the iterator's value_type (or a reference thereto) then this thread wouldn't be happening. Though to answer my own question, I suppose that the current one is more general and the cast can be added by hand fairly easily, and going the other way isn't possible. It seems like filling with 0 is common enough that there should perhaps be a std::reset algorithm that sets them all to a default-constructed value. It'd be nice and easy to optimize to memsets for PODs, too... ~ Scott