In case I have

void foo(...) {}
void bar(...) {}

how should I call bar from foo and passing along all the parameters?

void foo(...) { bar(?); } // bar(...) doesn't work

thanks, Mikko

Mikko wrote:
> In case I have
> 
> void foo(...) {}
> void bar(...) {}
> 
> how should I call bar from foo and passing along all the parameters?
> 
> void foo(...) { bar(?); } // bar(...) doesn't work
> 
> thanks, Mikko

You have to create a different, non-variadic function that takes _arguments and _argptr as arguments.

See for example writefx in phobos/std/stdio.d:
   void writefx(FILE* fp,
                TypeInfo[] arguments, void* argptr,
                int newline=false);

Or use variadic templates, which can be passed from one function to another.

--bb

Bill Baxter wrote:

> You have to create a different, non-variadic function that takes _arguments and _argptr as arguments.
> 
> See for example writefx in phobos/std/stdio.d:
>    void writefx(FILE* fp,
>                 TypeInfo[] arguments, void* argptr,
>                 int newline=false);

The portable version uses "std.stdarg.va_list" instead:
void writefx(FILE* fp, TypeInfo[] arguments, va_list argptr, int newline=false);

Should be the same for DMD, but is a built-in for GDC.
(need to use va_arg, instead of pointer manipulations)

--anders

http://www.prowiki.org/wiki4d/wiki.cgi?DocComments/Function#PortabilityandVariadicFunctions

Anders F Björklund wrote:
> Bill Baxter wrote:
> 
>> You have to create a different, non-variadic function that takes _arguments and _argptr as arguments.
>>
>> See for example writefx in phobos/std/stdio.d:
>>    void writefx(FILE* fp,
>>                 TypeInfo[] arguments, void* argptr,
>>                 int newline=false);
> 
> The portable version uses "std.stdarg.va_list" instead:
> void writefx(FILE* fp, TypeInfo[] arguments, va_list argptr, int newline=false);
> 
> Should be the same for DMD, but is a built-in for GDC.
> (need to use va_arg, instead of pointer manipulations)
> 
> --anders
> 
> http://www.prowiki.org/wiki4d/wiki.cgi?DocComments/Function#PortabilityandVariadicFunctions 
> 

Is there any reason why bar(...) couldn't be implemented? It's a mich nicer syntax.

"Robin Allen" <r.a3@ntlworld.com> wrote in message news:erd25h$li1$2@digitalmars.com...
>
> Is there any reason why bar(...) couldn't be implemented? It's a mich nicer syntax.

I think we had a topic on this not much more than a week ago, and came to much the same conclusion.

> --anders
http://www.prowiki.org/wiki4d/wiki.cgi?DocComments/Function#PortabilityandVariadicFunctions


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Anyway, I need to do this too, but my real question is: How do I turn off dout buffering?  Otherwise, I need to redirect writefln(...) to fwritefln(derr,...).