rust-clippy/tests/ui/transmute.stderr

error: transmute from a type (`&'a T`) to itself
  --> $DIR/transmute.rs:22:20
   |
22 |     let _: &'a T = core::intrinsics::transmute(t);
   |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
note: lint level defined here
  --> $DIR/transmute.rs:20:8
   |
20 | #[deny(useless_transmute)]
   |        ^^^^^^^^^^^^^^^^^

error: transmute from a reference to a pointer
  --> $DIR/transmute.rs:27:23
   |
27 |     let _: *const T = core::intrinsics::transmute(t);
   |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
help: try
   |     let _: *const T = t as *const T;

error: transmute from a reference to a pointer
  --> $DIR/transmute.rs:32:21
   |
32 |     let _: *mut T = core::intrinsics::transmute(t);
   |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
help: try
   |     let _: *mut T = t as *const T as *mut T;

error: transmute from a reference to a pointer
  --> $DIR/transmute.rs:37:23
   |
37 |     let _: *const U = core::intrinsics::transmute(t);
   |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
help: try
   |     let _: *const U = t as *const T as *const U;

error: transmute from a pointer type (`*const T`) to a reference type (`&T`)
  --> $DIR/transmute.rs:45:17
   |
45 |     let _: &T = std::mem::transmute(p);
   |                 ^^^^^^^^^^^^^^^^^^^^^^
   |
note: lint level defined here
  --> $DIR/transmute.rs:43:8
   |
43 | #[deny(transmute_ptr_to_ref)]
   |        ^^^^^^^^^^^^^^^^^^^^
help: try
   |     let _: &T = &*p;

error: transmute from a pointer type (`*mut T`) to a reference type (`&mut T`)
  --> $DIR/transmute.rs:51:21
   |
51 |     let _: &mut T = std::mem::transmute(m);
   |                     ^^^^^^^^^^^^^^^^^^^^^^
   |
help: try
   |     let _: &mut T = &mut *m;

error: transmute from a pointer type (`*mut T`) to a reference type (`&T`)
  --> $DIR/transmute.rs:57:17
   |
57 |     let _: &T = std::mem::transmute(m);
   |                 ^^^^^^^^^^^^^^^^^^^^^^
   |
help: try
   |     let _: &T = &*m;

error: transmute from a pointer type (`*mut T`) to a reference type (`&mut T`)
  --> $DIR/transmute.rs:63:21
   |
63 |     let _: &mut T = std::mem::transmute(p as *mut T);
   |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
help: try
   |     let _: &mut T = &mut *(p as *mut T);

error: transmute from a pointer type (`*const U`) to a reference type (`&T`)
  --> $DIR/transmute.rs:69:17
   |
69 |     let _: &T = std::mem::transmute(o);
   |                 ^^^^^^^^^^^^^^^^^^^^^^
   |
help: try
   |     let _: &T = &*(o as *const T);

error: transmute from a pointer type (`*mut U`) to a reference type (`&mut T`)
  --> $DIR/transmute.rs:75:21
   |
75 |     let _: &mut T = std::mem::transmute(om);
   |                     ^^^^^^^^^^^^^^^^^^^^^^^
   |
help: try
   |     let _: &mut T = &mut *(om as *mut T);

error: transmute from a pointer type (`*mut U`) to a reference type (`&T`)
  --> $DIR/transmute.rs:81:17
   |
81 |     let _: &T = std::mem::transmute(om);
   |                 ^^^^^^^^^^^^^^^^^^^^^^^
   |
help: try
   |     let _: &T = &*(om as *const T);

error: transmute from a pointer type (`*const i32`) to a reference type (`&issue1231::Foo<'_, u8>`)
  --> $DIR/transmute.rs:95:32
   |
95 |     let _: &Foo<u8> = unsafe { std::mem::transmute::<_, &Foo<_>>(raw) };
   |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
note: lint level defined here
  --> $DIR/transmute.rs:88:8
   |
88 | #[deny(transmute_ptr_to_ref)]
   |        ^^^^^^^^^^^^^^^^^^^^
help: try
   |     let _: &Foo<u8> = unsafe { &*(raw as *const Foo<_>) };

error: transmute from a pointer type (`*const i32`) to a reference type (`&issue1231::Foo<'_, &u8>`)
   --> $DIR/transmute.rs:100:33
    |
100 |     let _: &Foo<&u8> = unsafe { std::mem::transmute::<_, &Foo<&_>>(raw) };
    |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
help: try
    |     let _: &Foo<&u8> = unsafe { &*(raw as *const Foo<&_>) };

error: transmute from a pointer type (`*const i32`) to a reference type (`&u8`)
   --> $DIR/transmute.rs:107:14
    |
107 |     unsafe { std::mem::transmute::<_, Bar>(raw) };
    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
help: try
    |     unsafe { &*(raw as *const u8) };

error: transmute from a type (`std::vec::Vec<i32>`) to itself
   --> $DIR/transmute.rs:116:27
    |
116 |         let _: Vec<i32> = core::intrinsics::transmute(my_vec());
    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
note: lint level defined here
   --> $DIR/transmute.rs:113:8
    |
113 | #[deny(useless_transmute)]
    |        ^^^^^^^^^^^^^^^^^

error: transmute from a type (`std::vec::Vec<i32>`) to itself
   --> $DIR/transmute.rs:119:27
    |
119 |         let _: Vec<i32> = core::mem::transmute(my_vec());
    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: transmute from a type (`std::vec::Vec<i32>`) to itself
   --> $DIR/transmute.rs:122:27
    |
122 |         let _: Vec<i32> = std::intrinsics::transmute(my_vec());
    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: transmute from a type (`std::vec::Vec<i32>`) to itself
   --> $DIR/transmute.rs:125:27
    |
125 |         let _: Vec<i32> = std::mem::transmute(my_vec());
    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: transmute from a type (`std::vec::Vec<i32>`) to itself
   --> $DIR/transmute.rs:128:27
    |
128 |         let _: Vec<i32> = my_transmute(my_vec());
    |                           ^^^^^^^^^^^^^^^^^^^^^^

error: transmute from an integer to a pointer
   --> $DIR/transmute.rs:137:31
    |
137 |         let _: *const usize = std::mem::transmute(5_isize);
    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
help: try
    |         let _: *const usize = 5_isize as *const usize;

error: transmute from an integer to a pointer
   --> $DIR/transmute.rs:143:31
    |
143 |         let _: *const usize = std::mem::transmute(1+1usize);
    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
help: try
    |         let _: *const usize = (1+1usize) as *const usize;

error: transmute from a type (`*const Usize`) to the type that it points to (`Usize`)
   --> $DIR/transmute.rs:160:24
    |
160 |         let _: Usize = core::intrinsics::transmute(int_const_ptr);
    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
note: lint level defined here
   --> $DIR/transmute.rs:153:8
    |
153 | #[deny(crosspointer_transmute)]
    |        ^^^^^^^^^^^^^^^^^^^^^^

error: transmute from a type (`*mut Usize`) to the type that it points to (`Usize`)
   --> $DIR/transmute.rs:163:24
    |
163 |         let _: Usize = core::intrinsics::transmute(int_mut_ptr);
    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: transmute from a type (`Usize`) to a pointer to that type (`*const Usize`)
   --> $DIR/transmute.rs:166:31
    |
166 |         let _: *const Usize = core::intrinsics::transmute(my_int());
    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: transmute from a type (`Usize`) to a pointer to that type (`*mut Usize`)
   --> $DIR/transmute.rs:169:29
    |
169 |         let _: *mut Usize = core::intrinsics::transmute(my_int());
    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: aborting due to 25 previous errors