Variable 'variable lengths'

Hi

I'm writing some code for simulation only (not synthesis). Is there
someway of declaring a unsigned variable's length in the body of a
function? So far I haven't had any success because you need to declare
the variable and its length before the body of the function, and you
can't declare an unconstrained variable.

Thanks

Taras

Taras_96

Taras_96 wrote:

> Is there
> someway of declaring a unsigned variable's length in the body of a
> function?

reference the length of the actual
argument right in the variable declaration
-- ...
)
return unsigned is
variable reg_v : unsigned(vec_arg'range);
begin
-- ...

> So far I haven't had any success because you need to declare
> the variable and its length before the body of the function, and you
> can't declare an unconstrained variable.

No, but you can use an unconstrained parameter.

-- Mike Treseler

Mike Treseler

Thanks Mike

Taras_96