TDPL reaches Thermopylae level

Chris Nicholson-Sauls ibisbasenji at gmail.com
Tue Oct 27 00:04:33 PDT 2009


Andrei Alexandrescu wrote:
> Bill Baxter wrote:
>> On Mon, Oct 26, 2009 at 11:51 AM, Andrei Alexandrescu
>> <SeeWebsiteForEmail at erdani.org> wrote:
>>> Bill Baxter wrote:
>>>> On Mon, Oct 26, 2009 at 8:47 AM, Jeremie Pelletier <jeremiep at gmail.com>
>>>> wrote:
>>>>> Andrei Alexandrescu wrote:
>>>>>> 303 pages and counting!
>>>>>>
>>>>>> Andrei
>>>>> Soon the PI level, or at least 10 times PI!
>>>>>
>>>> A hundred even. ;-)
>>> Coming along. I'm writing about strings and Unicode right now. I was
>>> wondering what people think about allowing concatenation (with ~ and 
>>> ~=) of
>>> strings of different character widths. The support library could do 
>>> all of
>>> the transcoding.
>>>
>>> (I understand that concatenating an array of wchar or char with a 
>>> dchar is
>>> already in bugzilla.)
>>
>> So a common way to convert wchar to char might then become 
>> ""~myWcharString?
>>
>> That seems kind of odd.
> 
> Well, I guess. In particular, to me it's not clear what type we should 
> assign to a concatenation between a string and a wstring. With ~=, it's 
> much easier...
> 

My intuition would be to expect the same as adding an int to a byte: you get an int. 
Concatenating a string and a wstring should yield a wstring; ie, encode to the wider of 
the two types.

-- Chris Nicholson-Sauls



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