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Actually, memory leaks are the major class of memory error for which Rust offers no protection. See the following safe function in Box: https://doc.rust-lang.o

• gizmo686 1y ago
  Rust's memory safety guarantees do not insure the absence of leaks. However, Rust's design does offer significant protection against leaks (relative to languages like C where all heap allocations must be explicitly freed). The fact that any felt it nessasary to add a "leak" function to the standard library should tell you something about how easy it is to accidentally leak memory.