On Monday, 21 September 2015 at 18:28:19 UTC, jmh530 wrote:
My understanding is that the key benefit of Rust's system is that compile time checks don't have the runtime costs of smart pointers.


+ aliasing information.

If the compiler can prove that two pointers point to non-overlapping memory regions then the compiler can optimize better. This is one of the reasons why Fortran compilers managed to do better than C for a long time.

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