Boost logo

Boost Users :

Subject: Re: [Boost-users] std::vector and default constructor
From: Andrew Sutton (andrew.n.sutton_at_[hidden])
Date: 2008-11-21 15:43:54

> It would be helpful to have something like std::vector which allows one to
> pass some argument which is in turn passed to the constructor of every
> element so that not the default constructor is being called.

This would be helpful for e.g. objects located in memory created by memory
> mapped files.
> I think you could probably do this by building a custom allocator, so you
could write something like:

vector<T, default_value_allocator<T, some_value> > v;

This could just be a simple wrapper around the default allocator.

Andrew Sutton

Boost-users list run by williamkempf at, kalb at, bjorn.karlsson at, gregod at, wekempf at