On Sun, 08 Apr 2012 01:08:09 -0400, dnewbie <[email protected]> wrote:
I have a wchar[] and I want to convert it to UTF8
then append a string. This is my code.
import std.c.windows.windows;
import std.string;
import std.utf;
int main()
{
wchar[100] v;
v[0] = 'H';
v[1] = 'e';
v[2] = 'l';
v[3] = 'l';
v[4] = 'o';
v[5] = 0;
D does not use null terminated strings, so...
string s = toUTF8(v) ~ ", world!";
a fixed-sized wchar array is always passed full-bore. What you are doing
is appending ", world!" to a 100-element char array.
The resulting string is:
Hello\0\xff\xff\xff....\xff\xff, world
where that xff represnts the octet 0xff as a char, to fill out the 100
elements.
So what you want is a slice of the original string, use v[0..n] where n is
the length of the string. Since you don't need that 0, you can just do
v[0..5]:
string s = toUTF8(v[0..5]) ~ ", world!";
MessageBoxA(null, s.toStringz, "myapp", MB_OK);
return 0;
}
I want "Hello, world!", but the result is "Hello" only. Please help me.
Yeah, that's what I would have expected. MessageBox is hitting that 0
embedded in the string and stopping.
-Steve
