Code reviewHardcr-g160

Subject Use after freeLevel Senior–Staff~30 minCommon in Code quality & review interviewsIndustries Software development

Question

Review this Rust FFI-style helper using raw pointers.

What a strong answer looks like

Separate real bugs from style. Rank issues by severity, point at the root cause rather than the symptom, and suggest a concrete fix — specific and kind.

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Code to reviewrust

1fn make_label() -> *const u8 {2    let s = String::from("ready");3    s.as_ptr()4}5 6fn main() {7    let p = make_label();8    unsafe {9        let slice = std::slice::from_raw_parts(p, 5);10        println!("{:?}", std::str::from_utf8_unchecked(slice));11    }12}

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