[boost] Re: [optional]output

From: David Abrahams (dave_at_[hidden])
Date: 2005-03-09 10:31:53

"Peter Dimov" <pdimov_at_[hidden]> writes:

> David Abrahams wrote:
>> If you want to be unambiguous, it has to be more like:
>>
>>     [hello] <- a non-empty optional<std::string>
>>     []      <- a non-empty optional<std::string> (the string is empty)
>>     _       <- an empty optional<T>
>
> My preference is
>
>    hello
>
>    _
>
> A string can never be output "correctly", no matter what the delimiters are 
> ("a] [b"). 

I disagree.  You can generate escapes:

 [a\] \[b]

or if you like,

 [a\]\ \[b]

-- 
Dave Abrahams
Boost Consulting
www.boost-consulting.com