68 lines
2.9 KiB
Plaintext
68 lines
2.9 KiB
Plaintext
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warning: function pointers are not nullable, so checking them for null will always return false
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--> $DIR/fn_null_check.rs:6:8
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LL | if (fn_ptr as *mut ()).is_null() {}
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= help: wrap the function pointer inside an `Option` and use `Option::is_none` to check for null pointer value
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= note: `#[warn(incorrect_fn_null_checks)]` on by default
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warning: function pointers are not nullable, so checking them for null will always return false
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--> $DIR/fn_null_check.rs:8:8
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LL | if (fn_ptr as *const u8).is_null() {}
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= help: wrap the function pointer inside an `Option` and use `Option::is_none` to check for null pointer value
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warning: function pointers are not nullable, so checking them for null will always return false
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--> $DIR/fn_null_check.rs:10:8
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LL | if (fn_ptr as *const ()) == std::ptr::null() {}
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= help: wrap the function pointer inside an `Option` and use `Option::is_none` to check for null pointer value
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warning: function pointers are not nullable, so checking them for null will always return false
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--> $DIR/fn_null_check.rs:12:8
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LL | if (fn_ptr as *mut ()) == std::ptr::null_mut() {}
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= help: wrap the function pointer inside an `Option` and use `Option::is_none` to check for null pointer value
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warning: function pointers are not nullable, so checking them for null will always return false
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--> $DIR/fn_null_check.rs:14:8
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LL | if (fn_ptr as *const ()) == (0 as *const ()) {}
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= help: wrap the function pointer inside an `Option` and use `Option::is_none` to check for null pointer value
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warning: function pointers are not nullable, so checking them for null will always return false
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--> $DIR/fn_null_check.rs:16:8
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LL | if <*const _>::is_null(fn_ptr as *const ()) {}
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= help: wrap the function pointer inside an `Option` and use `Option::is_none` to check for null pointer value
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warning: function pointers are not nullable, so checking them for null will always return false
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--> $DIR/fn_null_check.rs:18:8
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LL | if (fn_ptr as *mut fn() as *const fn() as *const ()).is_null() {}
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= help: wrap the function pointer inside an `Option` and use `Option::is_none` to check for null pointer value
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warning: function pointers are not nullable, so checking them for null will always return false
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--> $DIR/fn_null_check.rs:20:8
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LL | if (fn_ptr as fn() as *const ()).is_null() {}
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= help: wrap the function pointer inside an `Option` and use `Option::is_none` to check for null pointer value
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warning: 8 warnings emitted
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