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Commit | Line | Data |
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a1dfa0c6 | 1 | error[E0080]: it is undefined behavior to use this value |
cdc7bbd5 | 2 | --> $DIR/ub-ref-ptr.rs:13:1 |
0bf4aa26 XL |
3 | | |
4 | LL | const UNALIGNED: &u16 = unsafe { mem::transmute(&[0u8; 4]) }; | |
064997fb | 5 | | ^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered an unaligned reference (required 2 byte alignment but found 1) |
0bf4aa26 | 6 | | |
e1599b0c | 7 | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. |
cdc7bbd5 | 8 | = note: the raw bytes of the constant (size: 8, align: 8) { |
136023e0 | 9 | ╾───────alloc3────────╼ │ ╾──────╼ |
cdc7bbd5 | 10 | } |
0bf4aa26 | 11 | |
a1dfa0c6 | 12 | error[E0080]: it is undefined behavior to use this value |
cdc7bbd5 | 13 | --> $DIR/ub-ref-ptr.rs:17:1 |
0bf4aa26 | 14 | | |
74b04a01 | 15 | LL | const UNALIGNED_BOX: Box<u16> = unsafe { mem::transmute(&[0u8; 4]) }; |
064997fb | 16 | | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered an unaligned box (required 2 byte alignment but found 1) |
74b04a01 XL |
17 | | |
18 | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. | |
cdc7bbd5 | 19 | = note: the raw bytes of the constant (size: 8, align: 8) { |
136023e0 | 20 | ╾───────alloc7────────╼ │ ╾──────╼ |
cdc7bbd5 | 21 | } |
74b04a01 XL |
22 | |
23 | error[E0080]: it is undefined behavior to use this value | |
cdc7bbd5 | 24 | --> $DIR/ub-ref-ptr.rs:21:1 |
74b04a01 | 25 | | |
0bf4aa26 | 26 | LL | const NULL: &u16 = unsafe { mem::transmute(0usize) }; |
064997fb | 27 | | ^^^^^^^^^^^^^^^^ constructing invalid value: encountered a null reference |
74b04a01 XL |
28 | | |
29 | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. | |
cdc7bbd5 XL |
30 | = note: the raw bytes of the constant (size: 8, align: 8) { |
31 | 00 00 00 00 00 00 00 00 │ ........ | |
32 | } | |
74b04a01 XL |
33 | |
34 | error[E0080]: it is undefined behavior to use this value | |
cdc7bbd5 | 35 | --> $DIR/ub-ref-ptr.rs:24:1 |
74b04a01 XL |
36 | | |
37 | LL | const NULL_BOX: Box<u16> = unsafe { mem::transmute(0usize) }; | |
064997fb | 38 | | ^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered a null box |
0bf4aa26 | 39 | | |
e1599b0c | 40 | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. |
cdc7bbd5 XL |
41 | = note: the raw bytes of the constant (size: 8, align: 8) { |
42 | 00 00 00 00 00 00 00 00 │ ........ | |
43 | } | |
0bf4aa26 | 44 | |
064997fb | 45 | error: any use of this value will cause an error |
5e7ed085 | 46 | --> $DIR/ub-ref-ptr.rs:31:1 |
0bf4aa26 XL |
47 | | |
48 | LL | const REF_AS_USIZE: usize = unsafe { mem::transmute(&0) }; | |
064997fb | 49 | | ^^^^^^^^^^^^^^^^^^^^^^^^^ unable to turn pointer into raw bytes |
0bf4aa26 | 50 | | |
064997fb FG |
51 | = note: `#[deny(const_err)]` on by default |
52 | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! | |
53 | = note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800> | |
54 | = help: this code performed an operation that depends on the underlying bytes representing a pointer | |
55 | = help: the absolute address of a pointer is not known at compile-time, so such operations are not supported | |
0bf4aa26 | 56 | |
064997fb FG |
57 | error: any use of this value will cause an error |
58 | --> $DIR/ub-ref-ptr.rs:35:39 | |
0bf4aa26 XL |
59 | | |
60 | LL | const REF_AS_USIZE_SLICE: &[usize] = &[unsafe { mem::transmute(&0) }]; | |
064997fb | 61 | | ---------------------------------- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unable to turn pointer into raw bytes |
0bf4aa26 | 62 | | |
064997fb FG |
63 | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! |
64 | = note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800> | |
65 | = help: this code performed an operation that depends on the underlying bytes representing a pointer | |
66 | = help: the absolute address of a pointer is not known at compile-time, so such operations are not supported | |
0bf4aa26 | 67 | |
064997fb FG |
68 | error: any use of this value will cause an error |
69 | --> $DIR/ub-ref-ptr.rs:35:38 | |
70 | | | |
71 | LL | const REF_AS_USIZE_SLICE: &[usize] = &[unsafe { mem::transmute(&0) }]; | |
72 | | ---------------------------------- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ referenced constant has errors | |
73 | | | |
74 | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! | |
75 | = note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800> | |
76 | ||
77 | error: any use of this value will cause an error | |
78 | --> $DIR/ub-ref-ptr.rs:41:86 | |
74b04a01 XL |
79 | | |
80 | LL | const REF_AS_USIZE_BOX_SLICE: Box<[usize]> = unsafe { mem::transmute::<&[usize], _>(&[mem::transmute(&0)]) }; | |
064997fb | 81 | | ------------------------------------------ ^^^^^^^^^^^^^^^^^^^^ unable to turn pointer into raw bytes |
74b04a01 | 82 | | |
064997fb FG |
83 | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! |
84 | = note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800> | |
85 | = help: this code performed an operation that depends on the underlying bytes representing a pointer | |
86 | = help: the absolute address of a pointer is not known at compile-time, so such operations are not supported | |
87 | ||
88 | error: any use of this value will cause an error | |
89 | --> $DIR/ub-ref-ptr.rs:41:85 | |
90 | | | |
91 | LL | const REF_AS_USIZE_BOX_SLICE: Box<[usize]> = unsafe { mem::transmute::<&[usize], _>(&[mem::transmute(&0)]) }; | |
92 | | ------------------------------------------ ^^^^^^^^^^^^^^^^^^^^^ referenced constant has errors | |
93 | | | |
94 | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! | |
95 | = note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800> | |
74b04a01 XL |
96 | |
97 | error[E0080]: it is undefined behavior to use this value | |
064997fb | 98 | --> $DIR/ub-ref-ptr.rs:47:1 |
0bf4aa26 XL |
99 | | |
100 | LL | const USIZE_AS_REF: &'static u8 = unsafe { mem::transmute(1337usize) }; | |
064997fb | 101 | | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered a dangling reference (address 0x539 is unallocated) |
74b04a01 XL |
102 | | |
103 | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. | |
cdc7bbd5 XL |
104 | = note: the raw bytes of the constant (size: 8, align: 8) { |
105 | 39 05 00 00 00 00 00 00 │ 9....... | |
106 | } | |
74b04a01 XL |
107 | |
108 | error[E0080]: it is undefined behavior to use this value | |
064997fb | 109 | --> $DIR/ub-ref-ptr.rs:50:1 |
74b04a01 XL |
110 | | |
111 | LL | const USIZE_AS_BOX: Box<u8> = unsafe { mem::transmute(1337usize) }; | |
064997fb | 112 | | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered a dangling box (address 0x539 is unallocated) |
0bf4aa26 | 113 | | |
e1599b0c | 114 | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. |
cdc7bbd5 XL |
115 | = note: the raw bytes of the constant (size: 8, align: 8) { |
116 | 39 05 00 00 00 00 00 00 │ 9....... | |
117 | } | |
0bf4aa26 | 118 | |
6a06907d | 119 | error[E0080]: it is undefined behavior to use this value |
064997fb | 120 | --> $DIR/ub-ref-ptr.rs:53:1 |
6a06907d XL |
121 | | |
122 | LL | const UNINIT_PTR: *const i32 = unsafe { MaybeUninit { uninit: () }.init }; | |
064997fb | 123 | | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered uninitialized raw pointer |
6a06907d XL |
124 | | |
125 | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. | |
cdc7bbd5 XL |
126 | = note: the raw bytes of the constant (size: 8, align: 8) { |
127 | __ __ __ __ __ __ __ __ │ ░░░░░░░░ | |
128 | } | |
6a06907d XL |
129 | |
130 | error[E0080]: it is undefined behavior to use this value | |
064997fb | 131 | --> $DIR/ub-ref-ptr.rs:56:1 |
5e7ed085 FG |
132 | | |
133 | LL | const NULL_FN_PTR: fn() = unsafe { mem::transmute(0usize) }; | |
064997fb | 134 | | ^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered null pointer, but expected a function pointer |
5e7ed085 FG |
135 | | |
136 | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. | |
137 | = note: the raw bytes of the constant (size: 8, align: 8) { | |
138 | 00 00 00 00 00 00 00 00 │ ........ | |
139 | } | |
140 | ||
141 | error[E0080]: it is undefined behavior to use this value | |
064997fb | 142 | --> $DIR/ub-ref-ptr.rs:58:1 |
6a06907d XL |
143 | | |
144 | LL | const UNINIT_FN_PTR: fn() = unsafe { MaybeUninit { uninit: () }.init }; | |
064997fb | 145 | | ^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered uninitialized bytes, but expected a proper pointer or integer value |
6a06907d XL |
146 | | |
147 | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. | |
cdc7bbd5 XL |
148 | = note: the raw bytes of the constant (size: 8, align: 8) { |
149 | __ __ __ __ __ __ __ __ │ ░░░░░░░░ | |
150 | } | |
6a06907d | 151 | |
5e7ed085 | 152 | error[E0080]: it is undefined behavior to use this value |
064997fb | 153 | --> $DIR/ub-ref-ptr.rs:60:1 |
5e7ed085 FG |
154 | | |
155 | LL | const DANGLING_FN_PTR: fn() = unsafe { mem::transmute(13usize) }; | |
064997fb | 156 | | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered 0xd[noalloc], but expected a function pointer |
5e7ed085 FG |
157 | | |
158 | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. | |
159 | = note: the raw bytes of the constant (size: 8, align: 8) { | |
160 | 0d 00 00 00 00 00 00 00 │ ........ | |
161 | } | |
162 | ||
163 | error[E0080]: it is undefined behavior to use this value | |
064997fb | 164 | --> $DIR/ub-ref-ptr.rs:62:1 |
5e7ed085 FG |
165 | | |
166 | LL | const DATA_FN_PTR: fn() = unsafe { mem::transmute(&13) }; | |
064997fb | 167 | | ^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered alloc41, but expected a function pointer |
5e7ed085 FG |
168 | | |
169 | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. | |
170 | = note: the raw bytes of the constant (size: 8, align: 8) { | |
064997fb | 171 | ╾───────alloc41───────╼ │ ╾──────╼ |
5e7ed085 FG |
172 | } |
173 | ||
064997fb | 174 | error: aborting due to 16 previous errors |
0bf4aa26 XL |
175 | |
176 | For more information about this error, try `rustc --explain E0080`. | |
064997fb FG |
177 | Future incompatibility report: Future breakage diagnostic: |
178 | error: any use of this value will cause an error | |
179 | --> $DIR/ub-ref-ptr.rs:31:1 | |
180 | | | |
181 | LL | const REF_AS_USIZE: usize = unsafe { mem::transmute(&0) }; | |
182 | | ^^^^^^^^^^^^^^^^^^^^^^^^^ unable to turn pointer into raw bytes | |
183 | | | |
184 | = note: `#[deny(const_err)]` on by default | |
185 | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! | |
186 | = note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800> | |
187 | = help: this code performed an operation that depends on the underlying bytes representing a pointer | |
188 | = help: the absolute address of a pointer is not known at compile-time, so such operations are not supported | |
189 | ||
190 | Future breakage diagnostic: | |
191 | error: any use of this value will cause an error | |
192 | --> $DIR/ub-ref-ptr.rs:35:39 | |
193 | | | |
194 | LL | const REF_AS_USIZE_SLICE: &[usize] = &[unsafe { mem::transmute(&0) }]; | |
195 | | ---------------------------------- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unable to turn pointer into raw bytes | |
196 | | | |
197 | = note: `#[deny(const_err)]` on by default | |
198 | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! | |
199 | = note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800> | |
200 | = help: this code performed an operation that depends on the underlying bytes representing a pointer | |
201 | = help: the absolute address of a pointer is not known at compile-time, so such operations are not supported | |
202 | ||
203 | Future breakage diagnostic: | |
204 | error: any use of this value will cause an error | |
205 | --> $DIR/ub-ref-ptr.rs:35:38 | |
206 | | | |
207 | LL | const REF_AS_USIZE_SLICE: &[usize] = &[unsafe { mem::transmute(&0) }]; | |
208 | | ---------------------------------- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ referenced constant has errors | |
209 | | | |
210 | = note: `#[deny(const_err)]` on by default | |
211 | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! | |
212 | = note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800> | |
213 | ||
214 | Future breakage diagnostic: | |
215 | error: any use of this value will cause an error | |
216 | --> $DIR/ub-ref-ptr.rs:41:86 | |
217 | | | |
218 | LL | const REF_AS_USIZE_BOX_SLICE: Box<[usize]> = unsafe { mem::transmute::<&[usize], _>(&[mem::transmute(&0)]) }; | |
219 | | ------------------------------------------ ^^^^^^^^^^^^^^^^^^^^ unable to turn pointer into raw bytes | |
220 | | | |
221 | = note: `#[deny(const_err)]` on by default | |
222 | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! | |
223 | = note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800> | |
224 | = help: this code performed an operation that depends on the underlying bytes representing a pointer | |
225 | = help: the absolute address of a pointer is not known at compile-time, so such operations are not supported | |
226 | ||
227 | Future breakage diagnostic: | |
228 | error: any use of this value will cause an error | |
229 | --> $DIR/ub-ref-ptr.rs:41:85 | |
230 | | | |
231 | LL | const REF_AS_USIZE_BOX_SLICE: Box<[usize]> = unsafe { mem::transmute::<&[usize], _>(&[mem::transmute(&0)]) }; | |
232 | | ------------------------------------------ ^^^^^^^^^^^^^^^^^^^^^ referenced constant has errors | |
233 | | | |
234 | = note: `#[deny(const_err)]` on by default | |
235 | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! | |
236 | = note: for more information, see issue #71800 <https://github.com/rust-lang/rust/issues/71800> | |
237 |