[Contiki-developers] log function and cooja

[Lyuba Pranchova]

Hi!

I'm having a problem with the math.h library when I'm trying to use it in Instant Contiki. When I'm trying to use the log(x) function the Cooja simulator gives an error message. I checked and everywhere it says that the log function is defined in math.h. So I don't know where is the problem and how can I fix it. I would be grateful if you could help me!

Thank's in advance!

Best regards,

Lyuba Pranchova

[Nicolas Tsiftes]

Lyuba Pranchova skrev:

Hello,

It appears that log() isn't included in libm, but logf() is. You can
link libm with your code by adding

TARGET_LIBFILES+=-lm

to your build command.

Nicolas

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[Lyuba Pranchova]

Hi!

Thank you very much, hope it'll work out this time.

Regards,

Lyuba