error: transmute from an integer to a pointer --> $DIR/transmutes_expressible_as_ptr_casts.rs:18:39 | LL | let _ptr_i32_transmute = unsafe { transmute::<usize, *const i32>(usize::MAX) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `usize::MAX as *const i32` | = note: `-D clippy::useless-transmute` implied by `-D warnings` error: transmute from a pointer to a pointer --> $DIR/transmutes_expressible_as_ptr_casts.rs:22:38 | LL | let _ptr_i8_transmute = unsafe { transmute::<*const i32, *const i8>(ptr_i32) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `ptr_i32 as *const i8` | = note: `-D clippy::transmute-ptr-to-ptr` implied by `-D warnings` error: transmute from a pointer to a pointer --> $DIR/transmutes_expressible_as_ptr_casts.rs:28:46 | LL | let _ptr_to_unsized_transmute = unsafe { transmute::<*const [i32], *const [u32]>(slice_ptr) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `slice_ptr as *const [u32]` error: transmute from `*const i32` to `usize` which could be expressed as a pointer cast instead --> $DIR/transmutes_expressible_as_ptr_casts.rs:34:50 | LL | let _usize_from_int_ptr_transmute = unsafe { transmute::<*const i32, usize>(ptr_i32) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `ptr_i32 as usize` | = note: `-D clippy::transmutes-expressible-as-ptr-casts` implied by `-D warnings` error: transmute from a reference to a pointer --> $DIR/transmutes_expressible_as_ptr_casts.rs:40:41 | LL | let _array_ptr_transmute = unsafe { transmute::<&[i32; 4], *const [i32; 4]>(array_ref) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `array_ref as *const [i32; 4]` error: transmute from `fn(usize) -> u8` to `*const usize` which could be expressed as a pointer cast instead --> $DIR/transmutes_expressible_as_ptr_casts.rs:48:41 | LL | let _usize_ptr_transmute = unsafe { transmute::<fn(usize) -> u8, *const usize>(foo) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `foo as *const usize` error: transmute from `fn(usize) -> u8` to `usize` which could be expressed as a pointer cast instead --> $DIR/transmutes_expressible_as_ptr_casts.rs:52:49 | LL | let _usize_from_fn_ptr_transmute = unsafe { transmute::<fn(usize) -> u8, usize>(foo) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `foo as usize` error: transmute from `*const u32` to `usize` which could be expressed as a pointer cast instead --> $DIR/transmutes_expressible_as_ptr_casts.rs:55:36 | LL | let _usize_from_ref = unsafe { transmute::<*const u32, usize>(&1u32) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `&1u32 as *const u32 as usize` error: transmute from a reference to a pointer --> $DIR/transmutes_expressible_as_ptr_casts.rs:66:14 | LL | unsafe { transmute::<&[i32; 1], *const u8>(in_param) } | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `in_param as *const [i32; 1] as *const u8` error: transmute from `fn()` to `*const u8` which could be expressed as a pointer cast instead --> $DIR/transmutes_expressible_as_ptr_casts.rs:84:28 | LL | let _x: u8 = unsafe { *std::mem::transmute::<fn(), *const u8>(f) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `(f as *const u8)` error: aborting due to 10 previous errors