Re: [boost] Re: [program_options] Patch to fix 64bit error and warning

From: Jonathan Wakely (cow_at_[hidden])
Date: 2005-03-23 06:41:50

On Wed, Mar 23, 2005 at 11:38:53AM +0000, Jonathan Wakely wrote:

> On Wed, Mar 23, 2005 at 02:12:03PM +0300, Vladimir Prus wrote:
> 
> > Applied. Interesting, I'd say that a std::string of more that 4GB is a
> > terrible idea, performance wise, as many operations are linear on string
> > size. Do you know why it's decided to make size_type 64bit?
> 
> size_t must be 64-bit or you couldn't request >4GB from new and malloc.
> IIRC std::string::size_type must be std::size_t.
> 
> AFAIK there's no requirement that std::string::max_size() == 4GB, 

that should read "max_size() > 4GB"

I'm typing a right old load of rubbish today, sorry!

jon

-- 
"Only two things are infinite: the universe and human stupidity,
 and I'm not sure about the former."
	- Albert Einstein