Re: [boost] [Container] Provide more guarantees for flat_multimap

Subject: Re: [boost] [Container] Provide more guarantees for flat_multimap
From: Rob Stewart (robertstewart_at_[hidden])
Date: 2014-08-19 15:27:01

On August 19, 2014 7:39:44 AM EDT, Niall Douglas <s_sourceforge_at_[hidden]> wrote:
>On 19 Aug 2014 at 14:33, Gavin Lambert wrote:
>
>> >> After thinking way too hard for a bit, I'd reckon it stands for
>> >> "constant time". I would not have deciphered it without the "low
>> >> latency" and "no allocation" hints.
>> >
>> > It does.
>> >
>> > I like the idea of a noalloc_t tag, so insert(noalloc_t,
>> > node_ptr_type &&v). Thoughts?
>> 
>> Shouldn't tags traditionally be the final argument?
>
>Pre-C++11 I would agree. However availability of variadic args makes 
>putting tags at the end harder than at the start. For me personally 
>in my own code, I would prefer all tags to go at the front rather 
>than some at the start and some at the end.
>
>Ok, I'm being lazy, but it saves productivity in having to write 
>Args&&... filters just to put tags at the end.

I put non-const reference parameters (for "out" arguments) first because of defaults, so it's the same idea. Putting the tag first is a bit jarring at first, but I like your argument.

___
Rob

(Sent from my portable computation engine)