Creating sublist according countinuous intervals
I have a list of number say
l = [1.25, 2.46, 3.99, 4, 5, 6, 7.12, 8.76 ,9.34, 10.42, 11.5, 12.]
I have a list of real intervals
Cl=[[0, 5),[5, 10),[10, 15)]
How to create sublists of l according to the intervals in Cl ? If I was work in N there will be no difficulties.