On Wed, 07 May 2014 19:41:16 +0100, Maxime Chevalier-Boisvert
<maximechevali...@gmail.com> wrote:
Unless I'm misunderstanding it should be as simple as:
wchar[100] stackws; // alloca() if you need it to be dynamically sized.
A slice of this static array behaves just like a slice of a dynamic
array.
I do need it to be dynamically sized. I also want to avoid copying my
string data if possible. Basically, I just want to create a wstring
"view" on an existing "raw" buffer that exists in memory somewhere,
based on a pointer to this buffer and its length.
import std.stdio;
import core.stdc.stdlib : malloc;
import core.stdc.wchar_ : wcscpy;
wchar[] toWChar(const void *ptr, int len)
{
// Cast pointer to wchar*, create slice (on the heap?) from it (copies no
data)
return (cast(wchar*)ptr)[0..len];
}
void main()
{
// Pre-existing data
int len = 12;
wchar *ptr = cast(wchar*)malloc(len * wchar.sizeof);
wcscpy(ptr, "Hello World");
// Create slice of data
wchar[] slice = toWChar(ptr, len);
writefln("%s", slice);
}
R
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