rust-clippy/tests/ui/transmute.stderr
2017-10-03 14:27:42 +02:00

192 lines
7.6 KiB
Text

error: transmute from a type (`&'a T`) to itself
--> $DIR/transmute.rs:22:20
|
22 | let _: &'a T = core::intrinsics::transmute(t);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= note: `-D useless-transmute` implied by `-D warnings`
error: transmute from a reference to a pointer
--> $DIR/transmute.rs:26:23
|
26 | let _: *const T = core::intrinsics::transmute(t);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `t as *const T`
error: transmute from a reference to a pointer
--> $DIR/transmute.rs:28:21
|
28 | let _: *mut T = core::intrinsics::transmute(t);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `t as *const T as *mut T`
error: transmute from a reference to a pointer
--> $DIR/transmute.rs:30:23
|
30 | let _: *const U = core::intrinsics::transmute(t);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `t as *const T as *const U`
error: transmute from a pointer type (`*const T`) to a reference type (`&T`)
--> $DIR/transmute.rs:35:17
|
35 | let _: &T = std::mem::transmute(p);
| ^^^^^^^^^^^^^^^^^^^^^^ help: try: `&*p`
|
= note: `-D transmute-ptr-to-ref` implied by `-D warnings`
error: transmute from a pointer type (`*mut T`) to a reference type (`&mut T`)
--> $DIR/transmute.rs:38:21
|
38 | let _: &mut T = std::mem::transmute(m);
| ^^^^^^^^^^^^^^^^^^^^^^ help: try: `&mut *m`
error: transmute from a pointer type (`*mut T`) to a reference type (`&T`)
--> $DIR/transmute.rs:41:17
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41 | let _: &T = std::mem::transmute(m);
| ^^^^^^^^^^^^^^^^^^^^^^ help: try: `&*m`
error: transmute from a pointer type (`*mut T`) to a reference type (`&mut T`)
--> $DIR/transmute.rs:44:21
|
44 | let _: &mut T = std::mem::transmute(p as *mut T);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `&mut *(p as *mut T)`
error: transmute from a pointer type (`*const U`) to a reference type (`&T`)
--> $DIR/transmute.rs:47:17
|
47 | let _: &T = std::mem::transmute(o);
| ^^^^^^^^^^^^^^^^^^^^^^ help: try: `&*(o as *const T)`
error: transmute from a pointer type (`*mut U`) to a reference type (`&mut T`)
--> $DIR/transmute.rs:50:21
|
50 | let _: &mut T = std::mem::transmute(om);
| ^^^^^^^^^^^^^^^^^^^^^^^ help: try: `&mut *(om as *mut T)`
error: transmute from a pointer type (`*mut U`) to a reference type (`&T`)
--> $DIR/transmute.rs:53:17
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53 | let _: &T = std::mem::transmute(om);
| ^^^^^^^^^^^^^^^^^^^^^^^ help: try: `&*(om as *const T)`
error: transmute from a pointer type (`*const i32`) to a reference type (`&issue1231::Foo<'_, u8>`)
--> $DIR/transmute.rs:64:32
|
64 | let _: &Foo<u8> = unsafe { std::mem::transmute::<_, &Foo<_>>(raw) };
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `&*(raw as *const Foo<_>)`
error: transmute from a pointer type (`*const i32`) to a reference type (`&issue1231::Foo<'_, &u8>`)
--> $DIR/transmute.rs:66:33
|
66 | let _: &Foo<&u8> = unsafe { std::mem::transmute::<_, &Foo<&_>>(raw) };
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `&*(raw as *const Foo<&_>)`
error: transmute from a pointer type (`*const i32`) to a reference type (`&u8`)
--> $DIR/transmute.rs:70:14
|
70 | unsafe { std::mem::transmute::<_, Bar>(raw) };
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `&*(raw as *const u8)`
error: transmute from a type (`std::vec::Vec<i32>`) to itself
--> $DIR/transmute.rs:76:27
|
76 | let _: Vec<i32> = core::intrinsics::transmute(my_vec());
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: transmute from a type (`std::vec::Vec<i32>`) to itself
--> $DIR/transmute.rs:78:27
|
78 | let _: Vec<i32> = core::mem::transmute(my_vec());
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: transmute from a type (`std::vec::Vec<i32>`) to itself
--> $DIR/transmute.rs:80:27
|
80 | let _: Vec<i32> = std::intrinsics::transmute(my_vec());
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: transmute from a type (`std::vec::Vec<i32>`) to itself
--> $DIR/transmute.rs:82:27
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82 | let _: Vec<i32> = std::mem::transmute(my_vec());
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: transmute from a type (`std::vec::Vec<i32>`) to itself
--> $DIR/transmute.rs:84:27
|
84 | let _: Vec<i32> = my_transmute(my_vec());
| ^^^^^^^^^^^^^^^^^^^^^^
error: transmute from an integer to a pointer
--> $DIR/transmute.rs:92:31
|
92 | let _: *const usize = std::mem::transmute(5_isize);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `5_isize as *const usize`
error: transmute from an integer to a pointer
--> $DIR/transmute.rs:96:31
|
96 | let _: *const usize = std::mem::transmute(1+1usize);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `(1+1usize) as *const usize`
error: transmute from a type (`*const Usize`) to the type that it points to (`Usize`)
--> $DIR/transmute.rs:111:24
|
111 | let _: Usize = core::intrinsics::transmute(int_const_ptr);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= note: `-D crosspointer-transmute` implied by `-D warnings`
error: transmute from a type (`*mut Usize`) to the type that it points to (`Usize`)
--> $DIR/transmute.rs:113:24
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113 | 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:115:31
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115 | 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:117:29
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117 | let _: *mut Usize = core::intrinsics::transmute(my_int());
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: transmute from a `u32` to a `char`
--> $DIR/transmute.rs:123:28
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123 | let _: char = unsafe { std::mem::transmute(0_u32) };
| ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `std::char::from_u32(0_u32)`
|
= note: `-D transmute-int-to-char` implied by `-D warnings`
error: transmute from a `i32` to a `char`
--> $DIR/transmute.rs:124:28
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124 | let _: char = unsafe { std::mem::transmute(0_i32) };
| ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `std::char::from_u32(0_i32 as u32)`
error: transmute from a `u8` to a `bool`
--> $DIR/transmute.rs:129:28
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129 | let _: bool = unsafe { std::mem::transmute(0_u8) };
| ^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `0_u8 != 0`
|
= note: `-D transmute-int-to-bool` implied by `-D warnings`
error: transmute from a `u32` to a `f32`
--> $DIR/transmute.rs:134:27
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134 | let _: f32 = unsafe { std::mem::transmute(0_u32) };
| ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `f32::from_bits(0_u32)`
|
= note: `-D transmute-int-to-float` implied by `-D warnings`
error: transmute from a `i32` to a `f32`
--> $DIR/transmute.rs:135:27
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135 | let _: f32 = unsafe { std::mem::transmute(0_i32) };
| ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `f32::from_bits(0_i32 as u32)`