Re: [Boost-users] circular_buffer: rotate() vs erase_begin() for scalars

Subject: Re: [Boost-users] circular_buffer: rotate() vs erase_begin() for scalars
From: Robert Dailey (rcdailey.lists_at_[hidden])
Date: 2017-01-24 10:28:18

On Wed, Jan 18, 2017 at 12:00 PM, Robert Dailey
<rcdailey.lists_at_[hidden]> wrote:
> I'm using circular_buffer to represent a FIFO queue of bytes:
>
> boost::circular_buffer<std::uint8_t> m_queue;
>
> When I read bytes from the "front", I simply do:
>
> m_queue.erase_begin(num_read_bytes);
>
> I do so because the documentation for erase_begin() specifically
> mentions constant time performance for scalar types since no
> destructor needs to be called.
>
> However, I feel that rotate() better expresses what I'm trying to do.
> Is there a reason to prefer one over the other for scalar types?

Would it be possible to get some feedback on this?