dChar Error

[Ali Çehreli]

On 12/30/22 17:22, Salih Dincer wrote:

 > I guess there is no other way but to overload.

Since the bodies of all three overloads are the same except some types, 
they can easily be templatized.

 > This is both the safest and the fastest.

I didn't think Values is fast with string copies that it makes. ;) I 
think it was only for showing the byte values but you can do the same by 
casting to ubyte[] as well.

Also, your Fun could work only with string literals; so I used function 
parameters.

import std.traits : isSomeString;

// isSomeString may or may not be useful below. (?)

auto Fun(S)(S str)
if (isSomeString!S) {
     import std.traits : Unqual;
     import std.conv : to;

     alias T = Unqual!S;

     // Note: The following may or may not copy the string
     //       depending on whether S is the same as T.
     return str.to!T;
}

void printBytes(S)(S str) {
     import std.stdio : writefln;
     import std.conv  : to;

     // The following cast does not copy anything.
     writefln!"%(%02X-%)"(cast(ubyte[])str);
}

void main()
{
     printBytes(Fun("β€Ş"));  // CE-B2-E2-82-AC-C5-9E
     printBytes(Fun("β€Ş"w)); // B2-03-AC-20-5E-01
     printBytes(Fun("β€Ş"d)); // B2-03-00-00-AC-20-00-00-5E-01-00-00
}

Ali