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:
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Simplicity: make_unique simplifies code by reducing the amount of boilerplate involved in initializing a unique_ptr.
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Consistency: It aligns with the modern C philosophy of avoiding the new operator for object creation.
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Flexibility: make_unique can take any number of arguments, allowing for complex object initialization.
When to Avoid make_unique:
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Custom Deleter Required: If you need to use a custom deleter for your unique_ptr, make_unique cannot be used.
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Adopting Raw Pointer: If adopting a raw pointer from another source, make_unique is not necessary.
The above is the detailed content of 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):
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