30 lines
1.6 KiB
Plaintext
30 lines
1.6 KiB
Plaintext
error: a dangling pointer will be produced because the temporary `Vec<u32>` will be dropped
|
|
--> $DIR/ext.rs:28:35
|
|
|
|
|
LL | let _ptr1 = Vec::<u32>::new().as_ptr().dbg();
|
|
| ----------------- ^^^^^^ this pointer will immediately be invalid
|
|
| |
|
|
| this `Vec<u32>` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
|
|
|
|
|
= note: pointers do not have a lifetime; when calling `as_ptr` the `Vec<u32>` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned
|
|
= help: for more information, see <https://doc.rust-lang.org/reference/destructors.html>
|
|
note: the lint level is defined here
|
|
--> $DIR/ext.rs:1:9
|
|
|
|
|
LL | #![deny(dangling_pointers_from_temporaries)]
|
|
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
error: a dangling pointer will be produced because the temporary `Vec<u32>` will be dropped
|
|
--> $DIR/ext.rs:30:25
|
|
|
|
|
LL | let _ptr2 = vec![0].as_ptr().foo();
|
|
| ------- ^^^^^^ this pointer will immediately be invalid
|
|
| |
|
|
| this `Vec<u32>` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
|
|
|
|
|
= note: pointers do not have a lifetime; when calling `as_ptr` the `Vec<u32>` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned
|
|
= help: for more information, see <https://doc.rust-lang.org/reference/destructors.html>
|
|
|
|
error: aborting due to 2 previous errors
|
|
|