Add "could be written as" example to MANUAL_MEMCPY

2019-08-17 13:09:03 +00:00 · 2019-08-17 13:09:03 +00:00 · b17cb32bcb
commit b17cb32bcb
parent 49dff2c9f3
1 changed files with 6 additions and 0 deletions
--- a/clippy_lints/src/loops.rs
+++ b/clippy_lints/src/loops.rs
@ -48,6 +48,12 @@ declare_clippy_lint! {
    ///     dst[i + 64] = src[i];
    /// }
    /// ```
+    /// Could be written as:
+    /// ```rust
+    /// # let src = vec![1];
+    /// # let mut dst = vec![0; 65];
+    /// dst[64..(src.len() + 64)].clone_from_slice(&src[..]);
+    /// ```
    pub MANUAL_MEMCPY,
    perf,
    "manually copying items between slices"