Size of int and float

Question

I have a question about the ranges of ints and floats:

If they both have the same size of 4 bytes, why do they have different ranges?

Answer 1

An integer is just a number... It's range depends on the number of bits (different for a signed or unsigned integer).

A floating point number is a whole different thing. It's just a convention about representing a floating point number in binary...

It's coded with a sign bit, an exponent field, and a mantissa.

Read the following article:

http://www.eosgarden.com/en/articles/float/

It will make you understand what are floating point values, from a binary perspective. The you'll understand the range thing...