Ch04.md

Chapter 4 Examples

Examples from Chapter 4 (Generics) of Programming C# 8.0 (O'Reilly).

Generic Types

• Example 1. Defining a generic class
• Example 2. Using a generic class
• Example 3. Constructed generic types as type arguments

Constraints

• Example 4. Creating a new instance of a parameterized type
• Example 5. Using a type constraint
• Example 6. Will not compile: interface not implemented
• Example 7. Will not compile: missing constraint
• Example 8. Constraining one argument to derive from another
• Example 9. Constraint requiring a reference type
• Example 10. Constrained by another constraint
• Example 11. Constraint requiring a value type
• Example 12. Constraints requiring delegate and enum types
• Example 13. Multiple constraints

Zero-Like Values

• Example 14. Getting the default (zero-like) value of a type argument
• Example 15. Getting the default (zero-like) value of an inferred type

Generic Methods

• Example 16. A generic method
• Example 17. Invoking a generic method
• Example 18. A generic method with a constraint
• Example 19. Generic method type argument inference

Generics and Tuples

• Example 20. Declaring a tuple variable in the normal way
• Example 21. Declaring a tuple variable with its underlying type
• Example 22. Returning a tuple

Inside Generics

• Example 23. A template technique that doesn’t work in C# generics