Re: [boost] Variadic append for std::string

Subject: Re: [boost] Variadic append for std::string
From: Christof Donat (cd_at_[hidden])
Date: 2017-01-26 08:16:41

Hi,

Am 26.01.2017 10:41, schrieb Hans Dembinski:
>>> Note that I am still resisting the idea of .str() as a member 
>>> function. If
>>> the joiner or concatenation object exports begin() and end(), it's
>>> un-necessary, because the object returned by create_string() (or 
>>> similar)
>>> can use the iterators.
>> 
>> I like that idea, though I still don't like the name to_string().
>> 
>> How about this:
>> 
>> auto s = generate<std::sting>(concat(...));
>> auto ws = generate<std::wsting>(concat(...));
> 
> Why don't you add explicit conversion operators to the string factory
> 
>   explicit operator std::string() { … }
>   explicit operator std::wstring() { … }
> 
> explicit type conversion was exactly added for this situation in
> C++11. The call is then
> 
>   auto s = static_cast<std::string>(concat(…));

That is the worst we had up to now. Even an implicit conversion is 
better, which is not at all my favourite as well.

Christof