Function std::rt::heap::deallocate
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pub unsafe fn deallocate(ptr: *mut u8, old_size: usize, align: usize)
Deallocates the memory referenced by ptr`ptr`.
The ptr`ptr` parameter must not be null.
The old_size`old_sizeand` and align`alignparameters are the parameters that were used to create the allocation referenced by` parameters are the parameters that were used to
create the allocation referenced by ptr`ptr. The`. The old_size`old_size` parameter may be
any value in range_inclusive(requested_size, usable_size).