rust-clippy/tests/ui/slow_vector_initialization.stderr

error: slow zero-filling initialization
  --> $DIR/slow_vector_initialization.rs:23:5
   |
22 |     let mut vec1 = Vec::with_capacity(len);
   |                    ----------------------- help: consider replace allocation with: `vec![0; len]`
23 |     vec1.extend(repeat(0).take(len));
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: `-D clippy::slow-vector-initialization` implied by `-D warnings`

error: slow zero-filling initialization
  --> $DIR/slow_vector_initialization.rs:27:5
   |
26 |     let mut vec2 = Vec::with_capacity(len - 10);
   |                    ---------------------------- help: consider replace allocation with: `vec![0; len - 10]`
27 |     vec2.extend(repeat(0).take(len - 10));
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: slow zero-filling initialization
  --> $DIR/slow_vector_initialization.rs:41:5
   |
40 |     let mut resized_vec = Vec::with_capacity(30);
   |                           ---------------------- help: consider replace allocation with: `vec![0; 30]`
41 |     resized_vec.resize(30, 0);
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^

error: slow zero-filling initialization
  --> $DIR/slow_vector_initialization.rs:44:5
   |
43 |     let mut extend_vec = Vec::with_capacity(30);
   |                          ---------------------- help: consider replace allocation with: `vec![0; 30]`
44 |     extend_vec.extend(repeat(0).take(30));
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: slow zero-filling initialization
  --> $DIR/slow_vector_initialization.rs:51:5
   |
50 |     let mut vec1 = Vec::with_capacity(len);
   |                    ----------------------- help: consider replace allocation with: `vec![0; len]`
51 |     vec1.resize(len, 0);
   |     ^^^^^^^^^^^^^^^^^^^

error: slow zero-filling initialization
  --> $DIR/slow_vector_initialization.rs:59:5
   |
58 |     let mut vec3 = Vec::with_capacity(len - 10);
   |                    ---------------------------- help: consider replace allocation with: `vec![0; len - 10]`
59 |     vec3.resize(len - 10, 0);
   |     ^^^^^^^^^^^^^^^^^^^^^^^^

error: slow zero-filling initialization
  --> $DIR/slow_vector_initialization.rs:63:5
   |
62 |     vec1 = Vec::with_capacity(10);
   |            ---------------------- help: consider replace allocation with: `vec![0; 10]`
63 |     vec1.resize(10, 0);
   |     ^^^^^^^^^^^^^^^^^^

error: unsafe vector initialization
  --> $DIR/slow_vector_initialization.rs:70:9
   |
67 |     let mut unsafe_vec: Vec<u8> = Vec::with_capacity(200);
   |                                   ----------------------- help: consider replace allocation with: `vec![0; 200]`
...
70 |         unsafe_vec.set_len(200);
   |         ^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: #[deny(clippy::unsafe_vector_initialization)] on by default

error: aborting due to 8 previous errors