[riot-notifications] [RIOT-OS/RIOT] core: add irq_is_enabled() function to irq interface (#11117)

Hauke Petersen notifications at github.com
Thu Aug 19 12:52:43 CEST 2021

> Btw: Why does this return int when all the other irq_* functions return unsigned?

I have simply the tendency to always use int for boolean return values when doing low-level C coding, hence the int in this case. Did never really mind the return values of the other functions in this module as of now. I personally don't have a strong preference, both get the job done. Would you prefer using unsigned?

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