Regarding hex strings

[bearophile]

(Repost)

hex strings are useful, but I think they were invented in D1 when 
strings were convertible to char[]. But today they are an array 
of immutable UFT-8, so I think this default type is not so useful:

void main() {
     string data1 = x"A1 B2 C3 D4"; // OK
     immutable(ubyte)[] data2 = x"A1 B2 C3 D4"; // error
}


test.d(3): Error: cannot implicitly convert expression 
("\xa1\xb2\xc3\xd4") of type string to ubyte[]


Generally I want to use hex strings to put binary data in a 
program, so usually it's a ubyte[] or uint[].

So I have to use something like:

auto data3 = cast(ubyte[])(x"A1 B2 C3 D4".dup);


So maybe the following literals are more useful in D2:

ubyte[] data4 = x[A1 B2 C3 D4];
uint[]  data5 = x[A1 B2 C3 D4];
ulong[] data6 = x[A1 B2 C3 D4 A1 B2 C3 D4];

Bye,
bearophile