What does program do when array is returned from function?

[Daniel Kozák via Digitalmars-d-learn]

On Thu, 04 Jun 2015 07:03:30 +0000
tcak via Digitalmars-d-learn <digitalmars-d-learn at puremagic.com> wrote:

> [code]
> char[] test(){
>     auto t = new char[5];
> 
>     return t;
> }
> [/code]
> 
> Is the test function returning just a pointer from heap or does 
> copy operation?
> 

this is same as:
auto t = new char[](5)

it will return array(which is struct with pointer to data and size)

> It is not obvious what it does, and I am trying to avoid doing 
> this always.

there is no reason.

But be carefull, this could be wrong

[code]
char[] test(){
    char[5] t;
    return t;
}
[/code]