Hi.
I have the following code:
void f(Args...)(Args args) {
  needs_wchar_t(args);
}

I want to loop over Args, and if it's a string of some type, I want to run it through toUTFz. For all other values, I just want to push them as normal.
How could I solve this?

"simendsjo" <simendsjo@gmail.com> wrote in message news:op.wanctrbux8p62v@simendsjo-desktop...
> Hi.
> I have the following code:
> void f(Args...)(Args args) {
>   needs_wchar_t(args);
> }
>
> I want to loop over Args, and if it's a string of some type, I want to run
> it through toUTFz. For all other values, I just want to push them as
> normal.
> How could I solve this?

With a loop?

void f(Args...)(Args args) {
  foreach(i, T; Args)
  {
    static if (isSomeString!T) args[i] = toUTFz(args[i]);
  }
  needs_wchar_t(args);
}

On 3/4/12, Daniel Murphy <yebblies@nospamgmail.com> wrote:
> void f(Args...)(Args args) {
>   foreach(i, T; Args)
>   {
>     static if (isSomeString!T) args[i] = toUTFz(args[i]);
>   }
>   needs_wchar_t(args);
> }

toUTFz returns a pointer, the isSomeString checks if a type is a string. IOW that will try to assign a pointer to a string.

But I don't understand the OPs requirements, what type does 'needs_wchar_t' take? A wchar*? A wchar**? Variadic arguments? Or something else?

On Sun, 04 Mar 2012 18:14:28 +0100, Andrej Mitrovic <andrej.mitrovich@gmail.com> wrote:

> On 3/4/12, Daniel Murphy <yebblies@nospamgmail.com> wrote:
>> void f(Args...)(Args args) {
>>   foreach(i, T; Args)
>>   {
>>     static if (isSomeString!T) args[i] = toUTFz(args[i]);
>>   }
>>   needs_wchar_t(args);
>> }
>
> toUTFz returns a pointer, the isSomeString checks if a type is a
> string. IOW that will try to assign a pointer to a string.
>
> But I don't understand the OPs requirements, what type does
> 'needs_wchar_t' take? A wchar*? A wchar**? Variadic arguments? Or
> something else?

A variadic C function:
extern(C) void someFormatting(wchar_t* format, ...)

But I get some unexpected results.. wchar_t is defined as dchar on linux and wchar on windows, but it seems to only work with utf8..
Sending in wchar or dchar prints only the first characted as I guess it just see \0 at the next.
I'll have to look at the original source in case it has some strange typedefs.

On 03/04/12 18:14, Andrej Mitrovic wrote:
> On 3/4/12, Daniel Murphy <yebblies@nospamgmail.com> wrote:
>> void f(Args...)(Args args) {
>>   foreach(i, T; Args)
>>   {
>>     static if (isSomeString!T) args[i] = toUTFz(args[i]);
>>   }
>>   needs_wchar_t(args);
>> }
> 
> toUTFz returns a pointer, the isSomeString checks if a type is a string. IOW that will try to assign a pointer to a string.

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