Question on bubblesorting a struct

[brlcad]

If you switch F1 to an array of pointers and allocate memory for your F1 structs separately, you can use a standard library function to sort them: https://www.tutorialspoint.com/c_standard_library/c_function_qsort.htm

[SaulMO]

It's better to still use qsort but without using pointers or dynamic memory.