Template Constraints

You will be introduced to the template constraints in this lesson.

We'll cover the following

- Incompatibility
- Tuple parameter of single element

Incompatibility

The fact that templates can be instantiated with any argument yet not every argument is compatible with every template brings an inconvenience. If a template argument is not compatible with a particular template, the incompatibility is necessarily detected during the compilation of the template code for that argument. As a result, the compilation error points at a line inside the template implementation.

Let’s see this by using useSoundEmittingObject() with a type that does not support the object.emitSound() call:

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Introduction

Lifetimes, null Value and the is Operator

Type Conversions

Structs

Variable Number of Parameters

Function Overloading and Member Functions

Constructor and Other Special Functions

Operator Overloading

Introduction to Classes

Inheritance

The Object Class

Interfaces

destroy and scoped

Modules and Libraries

Encapsulation and Protection Attributes

UFCS, Properties and Contract Programming

Templates

Pragmas, alias and with

Pointers

Bit Operations

Conditional Compilation

Function Pointers, Delegates, and Lambdas

foreach with Structs and Classes

Unions, Labels, goto and Tuples

More Templates

More Functions

Mixins

Ranges

static foreach and Parallelism

Message Passing Concurrency

Data Sharing Concurrency

Fibers

Memory Management

User Defined Attributes (UDA) and Operator Precedence

Conclusion

Template Constraints

Incompatibility