Re: [boost] [string] proposal

Subject: Re: [boost] [string] proposal
From: Alexander Lamaison (awl03_at_[hidden])
Date: 2011-01-22 08:43:37

On Fri, 21 Jan 2011 15:31:16 -0600, Nevin Liber wrote:

> On 21 January 2011 10:55, Dave Abrahams <dave_at_[hidden]> wrote:
> 
>>
>> Do you want to prevent
>> 1. wholesale mutation such as
>>
>>          x = y
>>          x += y
>>
>> or just
>>
>> 2. per-char mutation such as
>>
>>          x[10] = 'a'
>>
>> ?
>>
> 
> Eliminating #2 but not #1 would force c_str() to make a (possibly tracked)
> copy, to avoid #2 on its internal buffer (due to the trailing '\0' byte).

Why does the trailing '\0' affect anything.  It could store the immutable
string data internally in a buffer that has an extra '\0'.  The time it
considers this '\0' to be part of the data is on a call to c_str().

Alex

-- 
Easy SFTP for Windows Explorer (http://www.swish-sftp.org)