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Here are a few title options, incorporating the question format and highlighting the key benefits of `std::make_unique`: Option 1 (Focus on Safety and Cohesion): * Why is std::make_unique the prefer

Mary-Kate Olsen
Release: 2024-10-27 11:49:30
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Here are a few title options, incorporating the question format and highlighting the key benefits of `std::make_unique`:

Option 1 (Focus on Safety and Cohesion):

* Why is std::make_unique the preferred choice for initializing unique pointers?

Option 2

std::make_unique: Superiority over new Operator for Unique Pointer Initialization

When initializing a std::unique_ptr with an object created using the new operator, the std::make_unique function offers several compelling advantages:

Enhanced Cohesion and Type Safety:

  • std::make_unique eliminates the need to explicitly mention the type of the object being created, reducing the risk of typos and improving code readability.

Exception Safety:

  • make_unique ensures that the unique_ptr is properly constructed even if an exception is thrown during object instantiation. This prevents memory leaks that could occur when using new operator.

Improved Performance:

  • While performance differences are typically negligible, make_unique is generally considered slightly faster than using the new operator.

Additional Benefits:

  • Simplicity: make_unique simplifies code by reducing the amount of boilerplate involved in initializing a unique_ptr.
  • Consistency: It aligns with the modern C philosophy of avoiding the new operator for object creation.
  • Flexibility: make_unique can take any number of arguments, allowing for complex object initialization.

When to Avoid make_unique:

  • Custom Deleter Required: If you need to use a custom deleter for your unique_ptr, make_unique cannot be used.
  • Adopting Raw Pointer: If adopting a raw pointer from another source, make_unique is not necessary.

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