The Number Types

We've seen both f32 for floating point numbers that have a decimal points and i32 for integers that don't. There's a third type of number called u32 which is for "unsigned integer".

A regular i32 integer can be both positive and negative where the negative numbers have a "-" sign in front of them. When we say a u32 is unsigned, it means it can't have a "-" sign. That it turn means it can't be negative.

This brings us to the 32 that follows the f, i, and u in the types. It determines how big a number can be used for the variable.

Here's the values for floating point numbers

Here's the values for integers

And, here's the values for unsigned integers

TODO

• Fill in the high/low values

• Add notes about arch