• zjh (25/25) May 05 2022 Hello everyone,I have following function:
• vit (25/50) May 05 2022 Try this:
• zjh (2/3) May 05 2022 Very Good,Thank you very much!

zjh <fqbqrr 163.com> writes:

Hello everyone,I have following function:
```d
import core.stdc.stdio;
void f(int i,int j){
     printf("%i,%i",i,j);
}
```
I want to forward `int[N]` to `(int i,int j)` etc. How can I 
write a forwarding function?
```d
void ff(alias g,int...I)(int[2]k){
     g(k[I]);
}//How to unpack template variable parameters?

void f(int[2]k){
     ff!(f,0,1)(k);//how to forward?
}

```

main function:
```d
extern(C):void main()
{
     int[2] a=[2,4];
     f(a);//calling like this
}
```

vit <vit vit.vit> writes:

On Friday, 6 May 2022 at 00:41:18 UTC, zjh wrote:
 Hello everyone,I have following function:
 ```d
 import core.stdc.stdio;
 void f(int i,int j){
     printf("%i,%i",i,j);
 }
 ```
 I want to forward `int[N]` to `(int i,int j)` etc. How can I 
 write a forwarding function?
 ```d
 void ff(alias g,int...I)(int[2]k){
     g(k[I]);
 }//How to unpack template variable parameters?

 void f(int[2]k){
     ff!(f,0,1)(k);//how to forward?
 }

 ```

 main function:
 ```d
 extern(C):void main()
 {
     int[2] a=[2,4];
     f(a);//calling like this
 }
 ```

Try this:

```d
import core.stdc.stdio;

void f(int i,int j){
     printf("%i,%i",i,j);
}


import std.range :  iota;
import std.traits :  isStaticArray;
import std.meta :  AliasSeq;


template expand(alias arr)
if(isStaticArray!(typeof(arr))){
     auto get(size_t I)(){
         return arr[I];
     }

     alias Result = AliasSeq!();

     static foreach(I; iota(0, arr.length))
         Result = AliasSeq!(Result, get!I);

	alias expand = Result;
}


extern(C):void main(){
     int[2] a=[2,4];
     f(expand!a);
}
```

zjh <fqbqrr 163.com> writes:

On Friday, 6 May 2022 at 05:44:39 UTC, vit wrote:

 Try this:

Very Good,Thank you very much!