On Saturday, 11 November 2017 at 15:38:18 UTC, aki wrote:
Hello,
This will be trivial question but I cannot figure out
what's wrong. I want to convert string to an array of ubyte.
import std.conv;
void main() {
auto s = "hello";
ubyte[] b = to!(ubyte[])(s);
}
It compiles but cause run time error:
std.conv.ConvException@C:\APP\D\dmd2\windows\bin\..\..\src\phobos\std\conv.d(3530): Can't
parse string: "[" is missing
I cannot understand the meaning of this message.
Replacing s with s.dup to remove immutable doesn't help.
Do I need to use cast?
Regards,
Aki
I don't know about the error you're seeing, but the generic way
to get an array of the underlying data type of a string is via
std.string.representation.
import std.string;
auto s = "hello";
auto bytes = s.representation;
https://dlang.org/phobos/std_string.html#.representation
You can also simply cast to the appropriate type if you already
know what type of string you have.
auto bytes = cast(immutable(ubyte)[])s;
Of course, if you need a mutable array you should dup:
auto bytes = cast(ubyte[])s.dup;
