I really appreciate keldaris' posts, as his experience seems to be very similar to mine. Many simulation algorithms involve manipulating large arrays of data.

I really appreciate keldaris' posts, as his experience seems to be very similar to mine. Many simulation algorithms involve manipulating large arrays of data. Rust can check that your indexes are within bounds, but it can't check that your indexes are correct. If you access X+1 to get the element to the left of X, but you should have accessed X-1, then you have introduced the same sort of error as you'd get from memory corruption (and, frankly, one that is much harder to debug. Standard library assertions, Valgrind and ASan are no help at all if you're accessing valid data.) Nevertheless, I found it helped a lot to compile with `-D_FORTIFY_SOURCE=2 -D_GLIBCXX_ASSERTIONS -D_GLIBCXX_DEBUG` during my normal development. Among other things, that adds bounds checks to all container accesses. I leave them off in release mode, as my full-scale simulations already take multiple hours and I need the performance.