Advanced C++
Q90 / 100

What is the std::allocator_traits and custom allocator pattern?

Correct! Well done.

Incorrect.

The correct answer is B) allocator_traits provides a uniform interface for allocators, enabling containers to use custom memory strategies (pools, shared memory, NUMA)

B

Correct Answer

allocator_traits provides a uniform interface for allocators, enabling containers to use custom memory strategies (pools, shared memory, NUMA)

Explanation

std::vector<int, PoolAlloc<int>> uses a custom allocator. allocator_traits<A> provides defaults for optional allocator members. Used in embedded, game, and HPC code.

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