mirror of
https://github.com/rust-lang/rust.git
synced 2024-10-30 14:01:51 +00:00
19 lines
919 B
Plaintext
19 lines
919 B
Plaintext
error: getting the inner pointer of a temporary `CString`
|
|
--> $DIR/lint-temporary-cstring-as-param.rs:9:45
|
|
|
|
|
LL | some_function(CString::new("").unwrap().as_ptr());
|
|
| ------------------------- ^^^^^^ this pointer will 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/lint-temporary-cstring-as-param.rs:1:9
|
|
|
|
|
LL | #![deny(temporary_cstring_as_ptr)]
|
|
| ^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
error: aborting due to 1 previous error
|
|
|