Re: multiply_vxx_const.set_k() in GR3.9 seems to be busticated?

[Ron Economos]

Try the "Fast Multiply Constant" block instead. The "Multiply Constant" 
block requires that the constant be a vector.

Ron

On 10/6/20 21:08, Marcus D. Leech wrote:
> This is an apparent problem in 3.9.0.0-git
>
> In grc, create a multiply_const with a vector size > 1
>
> Have a function_probe block that sets the constant on a regular 
> basis--perhaps from a variable, or a function call or the like.
>
> The constant will never be updated, even thought the function_probe 
> setter is getting called.  It's like the statement that contains the
>   muitiply_const_vxx.set_k() is never even getting evaluated, because 
> if the value inside the set_k is itself a function call, that function
>   is never called.
>
> This caused me to pull my hair out (well, figuratively).
>
> Now the originating flow-graph .grc file originated from GR 3.7 but 
> GRC 3.9 didn't appear to have any problem converting it and the
>   generated python looks entirely valid.  This is almost like Python3 
> is simply quietly ignoring the entire statement and I cannot
>   understand why.