i wrote a test code:

void worker(int firstNumber)
{
     Thread.sleep(1.msecs);
}

void main()
{
    foreach (i; 1 .. 1000) {
        spawn(&worker, i );
        writeln(i);
    }
    thread_joinAll();
    writeln("ok");
}


sometimes it's ok,sometimes it's crashed ! why ?
here is one of times callstack message:

 	test.exe!_free()	
 	test.exe!_fwide()	
 	test.exe!_fwide()	
 	test.exe!__ReleaseSemaphore()	
 	test.exe!_fwide()	
>	test.exe!main@__modctor() 行 3
 	test.exe!rt@minfo@__T14runModuleFuncsS482rt5minfo11ModuleGroup11runTlsCtorsMFZ9__lambda1Z@runModuleFuncs()
 	test.exe!___threadstartex@4()

On 1/22/15 10:20 PM, mzfhhhh wrote:
> i wrote a test code:
>
> void worker(int firstNumber)
> {
>       Thread.sleep(1.msecs);
> }
>
> void main()
> {
>      foreach (i; 1 .. 1000) {
>          spawn(&worker, i );
>          writeln(i);
>      }
>      thread_joinAll();
>      writeln("ok");
> }
>
>
> sometimes it's ok,sometimes it's crashed ! why ?
> here is one of times callstack message:
>
>       test.exe!_free()
>       test.exe!_fwide()
>       test.exe!_fwide()
>       test.exe!__ReleaseSemaphore()
>       test.exe!_fwide()
>>     test.exe!main@__modctor() 行 3
>
>      test.exe!rt@minfo@__T14runModuleFuncsS482rt5minfo11ModuleGroup11runTlsCtorsMFZ9__lambda1Z@runModuleFuncs()
>       test.exe!___threadstartex@4()
>

That sounds like a bug in stdio. fwide is the horrible attempt of C stdio to do wide character output.

-Steve

thanks,you are right.

window console show chinese char is not right,
so i try to add this code:
"
extern(C) int setlocale(int, char*);
static this()
{
    fwide(core.stdc.stdio.stdout, 1);
    setlocale(LC_CTYPE, cast(char*)"china");
}
"
it's looks like solve the problem,but caused another problem.

now i use "chcp 65001" command to change the code page and change the
font to "lucida console".it works correctly!

On Saturday, 24 January 2015 at 01:54:32 UTC, mzfhhhh wrote:
> thanks,you are right.
>
> window console show chinese char is not right,
> so i try to add this code:
> "
> extern(C) int setlocale(int, char*);
> static this()
> {
>     fwide(core.stdc.stdio.stdout, 1);
>     setlocale(LC_CTYPE, cast(char*)"china");
> }
> "
> it's looks like solve the problem,but caused another problem.
>
> now i use "chcp 65001" command to change the code page and change the
> font to "lucida console".it works correctly!

this way also have problem!
look this bug report:
Issue 13651 - Writing Unicode text with console code page 65001
(UTF-8) may fail

now,i use this code show string on window console:

void write(string s)
{
     import std.windows.charset:toMBSz;
     printf(toMBSz(s));
}
void writeln(string s)
{
     write(s);
     printf("\r\n");
}