[boost] Re: [filesystem + iterator] directory iterator problem

From: Vladimir Prus (ghost_at_[hidden])
Date: 2004-04-27 01:05:40

David Abrahams wrote:

>> Ok, let me try again:
>>
>>    ifšiteratoršisšalsošašmodelšofšthešreadablešiteratoršconcept,šthen
>> expressionš*rv should be equal to *v, where v is the value of iterator
>>    before call to operator++(int) and rv is the value returned from the
>>    call.
> 
> We don't need new language to express what should be said here; we
> can just take it from the C++98 input iterator requirements.

Except that requirements on "*r" return return say: "Convertible to T" and
std::input_iterator requirements on "*r++" say the return type should be
"T", exactly. I'm not sure what problems this entail, just pointing out the
difference.

- Volodya