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How do I use quicksort in C?

37
Is there a ready function in stdlib.h?

Thanx in advance!
Oct 22 '09 #1

✓ answered by donbock

Look up the documentation of stdlib.h function qsort().

Don't let the function name fool you. This function need not use the "Quicksort" algorithm. Notice that if two or more elements compare equal, qsort can leave these elements in any relative order.

If you must absolutely use the "Quicksort" algorithm then you need to write your own function.

2 2742
donbock
2,426 Expert 2GB
Look up the documentation of stdlib.h function qsort().

Don't let the function name fool you. This function need not use the "Quicksort" algorithm. Notice that if two or more elements compare equal, qsort can leave these elements in any relative order.

If you must absolutely use the "Quicksort" algorithm then you need to write your own function.
Oct 22 '09 #2
AlarV
37
@donbock
Thanx for the help! I saw the documentation and it was quite difficult to understand, especially the 4th argument.. Anyway I will write it on my own :( . That's what I thought in the first place anyway.. I was just curious if there were one ready algorithm. :D
Oct 22 '09 #3

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