Array is already defined

[Steven Schveighoffer]

On 1/5/18 10:56 AM, Vino wrote:
> On Friday, 5 January 2018 at 15:28:58 UTC, Jonathan M Davis wrote:
>> On Friday, January 05, 2018 15:22:49 Vino via Digitalmars-d-learn wrote:
>>> Hi All,
>>>
>>>   Request your help on how to unset or delete an array, in the
>>> below example, we get an error "Common  is already defined".
>>>
>>> Auto fn1 () {
>>> Array!string Text;
>>> Array!string Number;
>>> return tuple(Text, Number);
>>> }
>>>
>>> Void main () {
>>> static foreach(i; 0 .. 2) {
>>> typeof(fn1()[i]) Common;
>>> writeln(Common[]);
>>> Common.delete or Common.Unset // Something similar like this
>>> }
>>>
>>> From,
>>> Vino.B
>>
>> static foreach does not create a new scope (if it did, it wouldn't 
>> work very well at module or class/struct scope). If you declare any 
>> variables inside a static foreach, give it an extra set of braces.
>>
>> - Jonathan m Davis
> 
> Hi Jonathan,
> 
>   Sorry , not able to get you, can you please point our as to where we 
> need to added the braces in the below example.
> 
> void main () {
> Array!int Keycol;
> static foreach(i; 0 .. 3) {
{
> typeof(read()[i]) Datacol;
> Datacol.insertBack(sort(read[i].dup[]).uniq);
> foreach(k; read[i]) { Keycol.insertBack(Datacol[].countUntil(k));} 
}
> }
> writeln (Datacol[], Keycol[]);
> }
>

-Steve