Are there any risks to using stdlib qsort() on an MQX 4.2 Kinetis K60 system?

[dmitriyc]

Hello,

I would like to sort an array of structs and the qsort() in stdlib.h looks like a good solution as opposed to rolling my own sort function. I don't need that much speed, so the generic standard function should be fine for this. Are there any dangers in doing this? For example, is the qsort() implemented as a recursive function, creating the need to be very careful with the task's stack size?

Has anyone else had experience using qsort in an MQX system?

[Carlos_Musich · Accepted solution]

Hi dmitriyc,

As you say... You must be very careful with the task stack. I have not tried qsort() or other recursive functions. But in my experience I saw that printf() using floats will overflow a task's stack very fast.

Best regards,
Carlos

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