What do number literals with a suffix, like 0u8, mean in Rust?

Question

I\'m reading through The Rust Programming Language and have encountered this notation: 0u8.

let some_u8_value = 0u8;
match some_u8_value {
    1          


        

Answer 1

Suffixed Literals

After searching, I've found this explanation in the same book:

... all number literals except the byte literal allow a type suffix, such as 57u8...

So 0u8 is the number 0 as an unsigned 8-bit integer.

These are referred to as "suffixed literals" and are discussed at length in Rust By Example.