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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: you must make sure that the variable you bind the `Vec<u32>` to lives at least as long as the pointer returned by the call to `as_ptr`
= help: in particular, if this pointer is returned from the current function, binding the `Vec<u32>` inside the function will not suffice
= 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: you must make sure that the variable you bind the `Vec<u32>` to lives at least as long as the pointer returned by the call to `as_ptr`
= help: in particular, if this pointer is returned from the current function, binding the `Vec<u32>` inside the function will not suffice
= help: for more information, see <https://doc.rust-lang.org/reference/destructors.html>
error: aborting due to 2 previous errors
|
