• simendsjo <simendsjo gmail.com> Mar 04 2012
• "Daniel Murphy" <yebblies nospamgmail.com> Mar 04 2012
• Artur Skawina <art.08.09 gmail.com> Mar 05 2012
• Andrej Mitrovic <andrej.mitrovich gmail.com> Mar 04 2012
• simendsjo <simendsjo gmail.com> Mar 04 2012

simendsjo <simendsjo gmail.com> writes:

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?

"Daniel Murphy" <yebblies nospamgmail.com> writes:

"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);
}

Artur Skawina <art.08.09 gmail.com> writes:

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.


http://forum.dlang.org/thread/op.v94npikmx8p62v simendsjo-desktop#post-mailman.940.1330024934.20196.digitalmars-d-learn:40puremagic.com

Andrej Mitrovic <andrej.mitrovich gmail.com> writes:

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?

simendsjo <simendsjo gmail.com> writes:

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.