Function arrow::memory::reallocate

pub unsafe fn reallocate(
    ptr: *mut u8, 
    old_size: usize, 
    new_size: usize
) -> *mut u8

Safety

This function is unsafe because undefined behavior can result if the caller does not ensure all of the following:

• ptr must be currently allocated via this allocator,

• new_size must be greater than zero.

• new_size, when rounded up to the nearest multiple of ALIGNMENT, must not overflow (i.e., the rounded value must be less than usize::MAX).