What is the C++ standard allocator?

Can you explain what the C++ standard allocator is?

The C++ standard allocator is a template class that defines how memory is allocated and deallocated for containers.

How does it differ from custom allocators?

Custom allocators allow for specialized memory management strategies, while the standard allocator provides a default implementation.

When should I use a custom allocator?

You should consider using a custom allocator when you need specific performance optimizations or memory management strategies.

Can you give an example of a custom allocator?

Sure! A simple custom allocator might pool memory for objects of the same type to reduce fragmentation and improve performance.