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34 lines
1.8 KiB
Plaintext
34 lines
1.8 KiB
Plaintext
error: getting the inner pointer of a temporary `CString`
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--> $DIR/lint-temporary-cstring-as-ptr.rs:14:48
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LL | let s = CString::new("some text").unwrap().as_ptr();
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| ---------------------------------- ^^^^^^ this pointer will be invalid
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| this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
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= 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
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= 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-ptr.rs:2:9
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LL | #![deny(temporary_cstring_as_ptr)]
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| ^^^^^^^^^^^^^^^^^^^^^^^^
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error: getting the inner pointer of a temporary `CString`
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--> $DIR/lint-temporary-cstring-as-ptr.rs:8:52
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LL | let s = CString::new("some text").unwrap().as_ptr();
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| ---------------------------------- ^^^^^^ this pointer will be invalid
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| this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
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...
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LL | mymacro!();
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| ---------- in this macro invocation
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= 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
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= help: for more information, see https://doc.rust-lang.org/reference/destructors.html
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= note: this error originates in the macro `mymacro` (in Nightly builds, run with -Z macro-backtrace for more info)
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error: aborting due to 2 previous errors
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