On 2011-08-02 19:51, Jonathan M Davis wrote:
I tried to convert a string into a wchar, but that didn't compile
because of this template constraint:
https://github.com/D-Programming-Language/phobos/blob/master/std/conv.d#L17
70
Is there a way to convert a string into a wchar?
Does that even make sense? What do you want it to do, convert the first code
point to a wchar and throw if there's more than one character in the string?
That's like asking whether you can covert between a container of ints and an
int. I would never expect std.conv.to to support that. Not to mention, you
shouldn't normally be using char or wchar by themselves, because they might
not be valid code points. Normally, only dchar should be used when
representing an individual character. If you want this, I'd suggest that you
simply do something like
cast(wchar)str.front
What you're asking for is inherently unsafe as far as unicode goes.
- Jonathan M Davis
I'm working on a serialization library and I intend to support as many
types as possible. So if someone serializes a single wchar I need to be
able to deserialize it. Since the serialized data is represented by a
string, in this case, I need to convert a string containing a single
character to a wchar when deserializing.
Yes, convert the first code point to a wchar and then throw if there's
more the one character in the string.
--
/Jacob Carlborg
