Tupelstrukturen
If the field names are unimportant, you can use a tuple struct:
This is often used for single-field wrappers (called newtypes):
Speaker Notes
This slide should take about 10 minutes.
- Newtypes are a great way to encode additional information about the value in a primitive type, for example:
- The number is measured in some units:
Newtons
in the example above. - The value passed some validation when it was created, so you no longer have to validate it again at every use:
PhoneNumber(String)
orOddNumber(u32)
.
- The number is measured in some units:
- Demonstrate how to add a
f64
value to aNewtons
type by accessing the single field in the newtype.- Rust generally doesnât like inexplicit things, like automatic unwrapping or for instance using booleans as integers.
- Operator overloading is discussed on Day 3 (generics).
- The example is a subtle reference to the Mars Climate Orbiter failure.