• =?UTF-8?B?Tm9yZGzDtnc=?= (7/7) Jun 17 2016 I want to create a function that takes a variadic number of
• Timon Gehr (6/13) Jun 17 2016 alias T=int;
• ketmar (6/24) Jun 17 2016 this. the compiler is smart, it is creating a slice of stack
• =?UTF-8?B?Tm9yZGzDtnc=?= (4/8) Jun 18 2016 Ahh, cool. I was completely unaware of this feature.

=?UTF-8?B?Tm9yZGzDtnc=?= <per.nordlow gmail.com> writes:

I want to create a function that takes a variadic number of 
arguments all of a specific type, say T, without having to create 
GC-allocated heap array.

Is there a better way than:

f(Args...)(Args args)
     if (allSameType!(Args, T);

in terms of template bloat?

Timon Gehr <timon.gehr gmx.ch> writes:

On 17.06.2016 23:00, Nordlöw wrote:
 I want to create a function that takes a variadic number of arguments
 all of a specific type, say T, without having to create GC-allocated
 heap array.

 Is there a better way than:

 f(Args...)(Args args)
      if (allSameType!(Args, T);

 in terms of template bloat?

alias T=int;

void foo(T[] a...) nogc{}

void bar() nogc{
     foo(1,2,3);
}

ketmar <ketmar ketmar.no-ip.org> writes:

On Friday, 17 June 2016 at 21:20:01 UTC, Timon Gehr wrote:
 On 17.06.2016 23:00, Nordlöw wrote:
 I want to create a function that takes a variadic number of 
 arguments
 all of a specific type, say T, without having to create 
 GC-allocated
 heap array.

 Is there a better way than:

 f(Args...)(Args args)
      if (allSameType!(Args, T);

 in terms of template bloat?

 alias T=int;

 void foo(T[] a...) nogc{}

 void bar() nogc{
     foo(1,2,3);
 }

this. the compiler is smart, it is creating a slice of stack 
memory here. note that you can't just assign `a` to, for example, 
global or member: when execution of `foo` ends, `a` will still 
point to stack memory. if you need to store `a` somewhere, be 
sure to `.dup` it.

=?UTF-8?B?Tm9yZGzDtnc=?= <per.nordlow gmail.com> writes:

On Friday, 17 June 2016 at 21:20:01 UTC, Timon Gehr wrote:
 void foo(T[] a...) nogc{}

 void bar() nogc{
     foo(1,2,3);
 }

Ahh, cool. I was completely unaware of this feature.

Doc here: 
https://dlang.org/spec/function.html#typesafe_variadic_functions