auto foo(S s)
{
	static foreach(k, p; [s, this])
		for(int i = 0; i < p.length; i++)
        		...
}

The idea is to provide single for loop structure for each of the variables(in this case s and this).

The is to avoid string mixins which are pathetic for this kind of work.

The point is that instead of having to do

		for(int i = 0; i < s.length; i++)
                 ...
		for(int i = 0; i < this.length; i++)
                 ...

in which case ... might be very long.

Sure one can create a function and all that mess but the compiler should be able to do symbol replacement very naturally and easily.

On Tuesday, 1 January 2019 at 21:14:09 UTC, Michelle Long wrote:
> auto foo(S s)
> {
> 	static foreach(k, p; [s, this])
> 		for(int i = 0; i < p.length; i++)
>         		...
> }

try

static foreach(.......) {{
     stuff
}}


The double {{ and double }} are intentional.

On Tuesday, 1 January 2019 at 21:14:09 UTC, Michelle Long wrote:
> auto foo(S s)
> {
> 	static foreach(k, p; [s, this])
> 		for(int i = 0; i < p.length; i++)
>         		...
> }
>
> The idea is to provide single for loop structure for each of the variables(in this case s and this).

You can do this with `std.meta.AliasSeq`:

    string[] a = ["lions", "tigers", "bears"];
    int[] b = [123, 456, 789];

    static foreach(array; AliasSeq!(a, b)) {
        foreach (item; array) {
            writeln(item);
        }
    }

On Tuesday, 1 January 2019 at 21:34:08 UTC, Paul Backus wrote:
> On Tuesday, 1 January 2019 at 21:14:09 UTC, Michelle Long wrote:
>> auto foo(S s)
>> {
>> 	static foreach(k, p; [s, this])
>> 		for(int i = 0; i < p.length; i++)
>>         		...
>> }
>>
>> The idea is to provide single for loop structure for each of the variables(in this case s and this).
>
> You can do this with `std.meta.AliasSeq`:
>
>     string[] a = ["lions", "tigers", "bears"];
>     int[] b = [123, 456, 789];
>
>     static foreach(array; AliasSeq!(a, b)) {
>         foreach (item; array) {
>             writeln(item);
>         }
>     }

I tried that but it didn't work... I will try again.