The low-level C++ dynamic memory allocation API is ridiculously bloated:
en.cppreference.com/w/cpp/memory/n
A global allocator has 8 variants of operator new to implement and 12 for operator delete. In total, there are 22 variants of operator new and 26 for operator delete (4 more soon).
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It doesn't even offer any form of reallocation, let alone good control over it. The useless std::nothrow_t variants of delete for symmetry with new are a bit funny. They didn't end up adding those for sized allocation as initially planned, so at least they avoided 4 more deletes.
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The configurable hook added in C++11 for freeing memory and triggering a retry at the allocator layer is neat, but real world programs would want to do it at the malloc layer. It only makes sense at this layer if it was a different allocator, which would make very little sense...
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