Hello,

import std.stdio;

void main() {
    wchar w_sonderzeichen= '\u20ac';    // Euro Zeichen
    writef("w_sonderzeichen = %s ",w_sonderzeichen) ;
}

capri@capri-desktop:~/dd$ dmd utf_test.d
/home/capri/dd/dmd/src/phobos/std/stdio.d(823): Error: undefined identifier backend
/home/capri/dd/dmd/src/phobos/std/stdio.d(823): Error: function std.stdio.fputc_unlocked (int, _iobuf*) does not match parameter types (wchar,int)
/home/capri/dd/dmd/src/phobos/std/stdio.d(823): Error: cannot implicitly convert expression (backend) of type int to _iobuf*
/home/capri/dd/dmd/src/phobos/std/stdio.d(830): Error: undefined identifier backend
/home/capri/dd/dmd/src/phobos/std/stdio.d(830): Error: function std.stdio.fputc_unlocked (int, _iobuf*) does not match parameter types (char,int)
/home/capri/dd/dmd/src/phobos/std/stdio.d(830): Error: cannot implicitly convert expression (backend) of type int to _iobuf*
/home/capri/dd/dmd/src/phobos/std/stdio.d(835): Error: undefined identifier backend
/home/capri/dd/dmd/src/phobos/std/stdio.d(835): Error: function std.stdio.fputwc_unlocked (dchar, _iobuf*) does not match parameter types (wchar,int)
/home/capri/dd/dmd/src/phobos/std/stdio.d(835): Error: cannot implicitly convert expression (backend) of type int to _iobuf*
/home/capri/dd/dmd/src/phobos/std/stdio.d(1982): Error: template instance std.stdio.File.LockingTextWriter.put!(wchar) error instantiating

DMD 2.029 under linux

nobody Wrote:

> Hello,
> 
> import std.stdio;
> 
> void main() {
>     wchar w_sonderzeichen= '\u20ac';    // Euro Zeichen
>     writef("w_sonderzeichen = %s ",w_sonderzeichen) ;
> }
> 
> capri@capri-desktop:~/dd$ dmd utf_test.d
> /home/capri/dd/dmd/src/phobos/std/stdio.d(823): Error: undefined identifier backend
> /home/capri/dd/dmd/src/phobos/std/stdio.d(823): Error: function std.stdio.fputc_unlocked (int, _iobuf*) does not match parameter types (wchar,int)
> /home/capri/dd/dmd/src/phobos/std/stdio.d(823): Error: cannot implicitly convert expression (backend) of type int to _iobuf*
> /home/capri/dd/dmd/src/phobos/std/stdio.d(830): Error: undefined identifier backend
> /home/capri/dd/dmd/src/phobos/std/stdio.d(830): Error: function std.stdio.fputc_unlocked (int, _iobuf*) does not match parameter types (char,int)
> /home/capri/dd/dmd/src/phobos/std/stdio.d(830): Error: cannot implicitly convert expression (backend) of type int to _iobuf*
> /home/capri/dd/dmd/src/phobos/std/stdio.d(835): Error: undefined identifier backend
> /home/capri/dd/dmd/src/phobos/std/stdio.d(835): Error: function std.stdio.fputwc_unlocked (dchar, _iobuf*) does not match parameter types (wchar,int)
> /home/capri/dd/dmd/src/phobos/std/stdio.d(835): Error: cannot implicitly convert expression (backend) of type int to _iobuf*
> /home/capri/dd/dmd/src/phobos/std/stdio.d(1982): Error: template instance std.stdio.File.LockingTextWriter.put!(wchar) error instantiating
> 
> DMD 2.029 under linux
> 

Hi

the error messages are the same on Windows XP. The problem
seems to be the type of 'w_sonderzeichen'.
If you change the type from wchar to dchar then dmd is happy
and at least on linux you see the Euro sign (on Windows console
output is not very useful).

Chears,
Sivo.

---
import std.stdio;

void main()
{
    dchar w_sonderzeichen = '\u20ac';    // Euro Zeichen
    writefln("w_sonderzeichen = %s ", w_sonderzeichen) ;
}
---

Output:
w_sonderzeichen = €

Sivo Schilling schrieb:
> nobody Wrote:
> 
>> Hello,
>>
>> import std.stdio;
>>
>> void main() {
>>     wchar w_sonderzeichen= '\u20ac';    // Euro Zeichen
>>     writef("w_sonderzeichen = %s ",w_sonderzeichen) ;
>> }
>>
>> capri@capri-desktop:~/dd$ dmd utf_test.d
>> /home/capri/dd/dmd/src/phobos/std/stdio.d(823): Error: undefined identifier backend
>> /home/capri/dd/dmd/src/phobos/std/stdio.d(823): Error: function std.stdio.fputc_unlocked (int, _iobuf*) does not match parameter types (wchar,int)
>> /home/capri/dd/dmd/src/phobos/std/stdio.d(823): Error: cannot implicitly convert expression (backend) of type int to _iobuf*
>> /home/capri/dd/dmd/src/phobos/std/stdio.d(830): Error: undefined identifier backend
>> /home/capri/dd/dmd/src/phobos/std/stdio.d(830): Error: function std.stdio.fputc_unlocked (int, _iobuf*) does not match parameter types (char,int)
>> /home/capri/dd/dmd/src/phobos/std/stdio.d(830): Error: cannot implicitly convert expression (backend) of type int to _iobuf*
>> /home/capri/dd/dmd/src/phobos/std/stdio.d(835): Error: undefined identifier backend
>> /home/capri/dd/dmd/src/phobos/std/stdio.d(835): Error: function std.stdio.fputwc_unlocked (dchar, _iobuf*) does not match parameter types (wchar,int)
>> /home/capri/dd/dmd/src/phobos/std/stdio.d(835): Error: cannot implicitly convert expression (backend) of type int to _iobuf*
>> /home/capri/dd/dmd/src/phobos/std/stdio.d(1982): Error: template instance std.stdio.File.LockingTextWriter.put!(wchar) error instantiating
>>
>> DMD 2.029 under linux
>>
> 
> Hi
> 
> the error messages are the same on Windows XP. The problem
> seems to be the type of 'w_sonderzeichen'.
> If you change the type from wchar to dchar then dmd is happy
> and at least on linux you see the Euro sign (on Windows console
> output is not very useful).
> 
> Chears,
> Sivo.
> 
> ---
> import std.stdio;
> 
> void main()
> {
>     dchar w_sonderzeichen = '\u20ac';    // Euro Zeichen
>     writefln("w_sonderzeichen = %s ", w_sonderzeichen) ;
> }
> ---
> 
> Output:
> w_sonderzeichen = €
> 

The windows console is by default adjusted to your local codepage. It
can be set to be utf8 with the shell command "chcp 65001" or your
program can do that with "SetConsoleCP( CP_UTF8 );"
In Tango programs this is done by default, afaik.

The compile errors you see seems like a implementation bug in phobos to me.

You can also use char[] instead of dchar,
char[] w_sonderzeichen = "\u20ac";