Pow() function?

Software
1

Hi all,

I need the pow() function from the standard “math.h” include to compute real values from PMBus DIRECT data format.
But it seems not available in the CERN-IPMC stack AFAIK.
Is there any equivalent from PigeonPoint that we should know about ?

Cheers,
Sylvain@LAPP

2

Should I reimplement my own version ?

3

Hello Sylvain,

I have searched the entire IPMC source code and not found any file that suggests that pow() is available for user code.

Ralf also does not remember that a user ever had to use pow(). The real expert, Stefan Haas, will be back from vacation next Monday.

Cheers,

Markus

4

Hi Sylvain,

I did not even know that the IPMC was supposed to do floating point calculations, because this is what you are looking after?

I thought the floating point calculations were only done by the shelf manager …

Let’s clarify with Stefan when he will be back next week.

Cheers,
Ralf.

5

Hi Stephan and Markus,

With PMbus DIRECT numeric format, we need float computations indeed to get get the real sensor value X = (1.0 / m) * (Y * (10 ^ -R)) - b.
Anyway I coded my own function in the mean time.

Best regards,
Sylvain @ LAPP