Conteúdo do Curso

C++ Smart Pointers

1. Introduction to Smart Pointers

Understanding Pointers and Heap Memory The Need For Smart Pointers Smart Pointer Use Cases References Use Cases Benefits of Using Smart Pointers and References

2. Unique Pointers

What Are Unique Pointers?Creating Unique Pointers Application For Unique Pointers Passing Around Unique Pointers Inner Workings of a Unique Pointer Unique Pointers and Templates

3. Shared Pointers

What Are Shared Pointers?Creating and Sharing Shared Pointers Shared Pointer Functions to Remember Shared Pointers vs Unique Pointers Best Practices of Using Shared Pointers Shared Pointers Practice

4. Weak Pointers

Understanding Weak Pointers Creating And Using Weak Pointers Breaking Circular References With Weak Pointers Important Weak Pointer Functions

5. References

How Are References Different From Pointers?Constant References And Immutability When to Use References vs Smart Pointers vs Raw Pointers References Best Practices

6. Advanced topics

Providing Custom Deleters For Smart Pointers Real-World Applications of Smart Pointers Performance Considerations With Smart Pointers Definitive Guide to Shared vs Unique vs Weak Pointers

C++ Smart Pointers

References Best Practices

Naming conventions

Choose meaningful names for your references. The names should reflect the purpose of the referenced variable. Clear and descriptive names enhance code readability, and make it easier for others (or your future self) to understand your code.

main.cpp

In the above code, counterRef is a meaningful name for a reference, whereas r is a poor naming choice that should be avoided.

Scope and lifetime

Be mindful of the scope and lifetime of your references. As a general rule, don’t return references to local variables from functions, as it leads to undefined behavior once the variable goes out of scope.

main.cpp

In the above code we are returning a reference to localVar, a local variable, from the function createReference. This will lead to undefined behavior once localVar goes out of scope.

References in range-based for loops

Use references in range-based for loops to work directly with the elements of a container, without creating unnecessary copies.

main.cpp

In the above code, we use references to iterate over a vector. This ensures that the vector entries are accessed directly, without any copying involved.

Tudo estava claro?

Seção 5. Capítulo 4

Conteúdo do Curso

C++ Smart Pointers

1. Introduction to Smart Pointers

Understanding Pointers and Heap Memory The Need For Smart Pointers Smart Pointer Use Cases References Use Cases Benefits of Using Smart Pointers and References

2. Unique Pointers

What Are Unique Pointers?Creating Unique Pointers Application For Unique Pointers Passing Around Unique Pointers Inner Workings of a Unique Pointer Unique Pointers and Templates

3. Shared Pointers

What Are Shared Pointers?Creating and Sharing Shared Pointers Shared Pointer Functions to Remember Shared Pointers vs Unique Pointers Best Practices of Using Shared Pointers Shared Pointers Practice

4. Weak Pointers

Understanding Weak Pointers Creating And Using Weak Pointers Breaking Circular References With Weak Pointers Important Weak Pointer Functions

5. References

How Are References Different From Pointers?Constant References And Immutability When to Use References vs Smart Pointers vs Raw Pointers References Best Practices

6. Advanced topics

Providing Custom Deleters For Smart Pointers Real-World Applications of Smart Pointers Performance Considerations With Smart Pointers Definitive Guide to Shared vs Unique vs Weak Pointers

C++ Smart Pointers

References Best Practices

Naming conventions

main.cpp

In the above code, counterRef is a meaningful name for a reference, whereas r is a poor naming choice that should be avoided.

Scope and lifetime

main.cpp

In the above code we are returning a reference to localVar, a local variable, from the function createReference. This will lead to undefined behavior once localVar goes out of scope.

References in range-based for loops

Use references in range-based for loops to work directly with the elements of a container, without creating unnecessary copies.

main.cpp

In the above code, we use references to iterate over a vector. This ensures that the vector entries are accessed directly, without any copying involved.

Tudo estava claro?

Seção 5. Capítulo 4