Re: [boost] Interest check: container with preallocated buffer

Subject: Re: [boost] Interest check: container with preallocated buffer
From: OvermindDL1 (overminddl1_at_[hidden])
Date: 2009-05-25 20:26:52

> Thorsten Ottosen wrote:
>>
>> Dmitry Vinogradov skrev:
>>>
>>> Boost.Array offers constant size container with preallocated buffer,
>>> Boost.Optional provides from zero to one element. There are no STL container
>>> with preallocated buffer and it seems custom allocator does not help to do
>>> this with existing containers.
>>>
>>> Does any container exist to offer functionality like Boost.Array but
>>> allowing to store from 0 to N elements? Is there any interest in such
>>> container?
>>>
>>> PS. It's similar to fixed_string but as a generic container.
>>
>> Please see
>>
>> http://www.cs.aau.dk/~nesotto/boost/auto_buffer.zip
>>
>> http://www.cs.aau.dk/~nesotto/boost/trunk/libs/auto_buffer/doc/html/

I am curious.  Would it not be possible to implement a class that
handles memory allocations of the standard STL style and just pass an
instance of that allocator (after allocated on the stack of course) to
the stl::vector template parameter, or does std::vector require a
class type?  I have not read the standard in this area, and from above
I guess the C++0x is more clear on this?