Array as an argument, ambiguous behaviour.

[Cooler]

On Wednesday, 29 January 2014 at 16:15:36 UTC, Tobias Pankrath 
wrote:
> On Wednesday, 29 January 2014 at 16:01:08 UTC, Cooler wrote:
>>
>> Do you read my post? I am answering... why do I need fun3() if 
>> I already have fun1() and fun2().
>
> fun3 guarantees that the argument has the same length for 
> example.

Where argument has the same length? After function call, or 
inside function? I don't understand what my intention should be 
to push me to use fun3()?