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The difference between neat and correct. In programming, a borrow checker verifies that pointers are not used in dangerous ways during compilation time to to ensure that memory is managed safely without the need of a garbage collector. The guarantees it provides ensure the program is correct in it's usage of memory and that no illegal memory access (double-free, segmentation fault ...) is possible (even in multi threaded situation). Because in the case of rust, it allows writing a more readable code that is always proven to have no memory issues and often resulting in better performances than their C / C++ equivalent, it is believed in the rust community that it will become a common feature for future languages in the software development industry.
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