obliterate

[Dmitry Olshansky]

13-Nov-2013 04:33, Andrei Alexandrescu пишет:
> Hello,
[snip]
> Here's what I'm thinking. First, obliterate calls the destructor if
> present and then writes the fields as follows:

>
> * unsigned integers: t.max / 2
>
> * signed integers: t.min / 2
>
> * characters: ?

As Vladimir said:
0xFF for char
0xFFFF for wchar
0x10_FFFF for dchar

Alternatives for w/dchar :
all in range of 0xFDD0-0xFDEF
0xFFFE and 0xFFFF
0x1FFFE and 0x1FFFF
0x2FFFE and 0x2FFFF
and so on, up to
0x10FFFE and 0x10FFFF

Relevant passage from the Unicode standard:
Noncharacters are code points that are permanently reserved in the 
Unicode Standard for internal use. They are forbidden for use in open 
interchange of Unicode text data.

-- 
Dmitry Olshansky