How to round up float to integer

Question

I have a float 1.23 for instance, if I use round, it returns 1. My desired output is 2, which is round to the next integer. I can write a function to do it. I just wonder is there any already written function to do it (like round). Thanks.

Answer 1

You can use the ceiling function (in Prelude):

ghci>> ceiling 1.23
2