blob: 4e5c8aa069364a3edd012207c835e0833adf4da3 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
|
error: getting the inner pointer of a temporary `CString`
--> $DIR/lint-temporary-cstring-as-ptr.rs:14:48
|
LL | let s = CString::new("some text").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-ptr.rs:2:9
|
LL | #![deny(temporary_cstring_as_ptr)]
| ^^^^^^^^^^^^^^^^^^^^^^^^
error: getting the inner pointer of a temporary `CString`
--> $DIR/lint-temporary-cstring-as-ptr.rs:8:52
|
LL | let s = CString::new("some text").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
...
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
|
