rust/tests/ui/lint/lint-temporary-cstring-as-param.stderr

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2020-09-21 20:32:28 +00:00
error: getting the inner pointer of a temporary `CString`
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--> $DIR/lint-temporary-cstring-as-param.rs:9:45
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|
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
|
2022-09-18 15:55:36 +00:00
= 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
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note: the lint level is defined here
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--> $DIR/lint-temporary-cstring-as-param.rs:1:9
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|
LL | #![deny(temporary_cstring_as_ptr)]
| ^^^^^^^^^^^^^^^^^^^^^^^^
error: aborting due to previous error