[NF] Evaluate scalar product and power operator

[Francesco Casella]

Please check ​Modelica.Blocks.Examples.NoiseExamples.DrydenContinuousTurbulence. The following error is reported:

[OMCompiler/Compiler/NFFrontEnd/NFCeval.mo:1115:20-1115:79:writable] 
Error: Internal error NFCeval.evalBuiltinSqrt got invalid arguments 
({182.88 ^ 2.0 / 72.01599999999999 ^ 2.0, 5.078871361919574, 1.0} * 
({182.88 ^ 2.0 / 72.01599999999999 ^ 2.0, 5.078871361919574, 1.0}))

as far as I understand, the expression between parentheses is a scalar product, so it should result in a scalar output, which should be a legitimate argument for the sqrt() function.

[Martin Sjölund]

The main issue here is that evalBuiltinSqrt only works if it is sent a Real literal; if any of the subexpressions fail to evaluate, it will print this message (even if it is the exponentiation that fails, if I guess correctly).

[Martin Sjölund]

​https://github.com/OpenModelica/OMCompiler/pull/2348

[Francesco Casella]

So far, all the tickets involving the NF were closed with milestone 2.0.0, meaning that the change will be effecive with 2.0.0, when the NF will become the default one.

It is true that you can get the feature with 1.13.0 and -d=newInst, but that is meant as an experimental feature, not as a released feature.

Is that ok?

[Martin Sjölund]

I suppose, but that makes it harder to figure out when something was actually added to the compiler.

[Francesco Casella]

Replying to sjoelund.se:

I suppose, but that makes it harder to figure out when something was actually added to the compiler.

For that, we have a nice link to the PR :)