Question:
How does one convert a double to an int? Is there a function like floor that actually returns an int?
Answer:
There are many things you can do to convert a float to an int depending upon what results you expect. If you want to use the built-in languageconversions, you can simply assign the float to an integer. For example:
float f = 9.99;int i;i = int(f); // conversion.. truncates.This will truncate the value and always return the integral part.
Also, notice that the typecast to int was not really necessary, but I like to write itexplicitly to make my intentions well-known. If you want to achieve somethingwith the conversion other than the standard behavior, you will haveto use functions from the standard C++ or C library.
Two useful functions are floor and ceil. Both of these return float, but the value can be used as an integer.
