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warning: lint `temporary_cstring_as_ptr` has been renamed to `dangling_pointers_from_temporaries`
--> $DIR/cstring-as-ptr.rs:2:9
|
LL | #![deny(temporary_cstring_as_ptr)]
| ^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `dangling_pointers_from_temporaries`
|
= note: `#[warn(renamed_and_removed_lints)]` on by default
error: a dangling pointer will be produced because the temporary `CString` will be dropped
--> $DIR/cstring-as-ptr.rs:15:48
|
LL | let s = CString::new("some text").unwrap().as_ptr();
| ---------------------------------- ^^^^^^ this pointer will immediately be invalid
| |
| this `CString` 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 `CString` 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/cstring-as-ptr.rs:2:9
|
LL | #![deny(temporary_cstring_as_ptr)]
| ^^^^^^^^^^^^^^^^^^^^^^^^
error: a dangling pointer will be produced because the temporary `CString` will be dropped
--> $DIR/cstring-as-ptr.rs:9:52
|
LL | let s = CString::new("some text").unwrap().as_ptr();
| ---------------------------------- ^^^^^^ this pointer will immediately be invalid
| |
| this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
...
LL | mymacro!();
| ---------- in this macro invocation
|
= note: pointers do not have a lifetime; when calling `as_ptr` the `CString` 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: this error originates in the macro `mymacro` (in Nightly builds, run with -Z macro-backtrace for more info)
error: aborting due to 2 previous errors; 1 warning emitted
|
