mirror of https://github.com/rust-lang/rust
32 lines
933 B
Rust
32 lines
933 B
Rust
//@ run-rustfix
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// Suggest providing a std::ptr::null{,_mut}() to a function that takes in a raw
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// pointer if a literal 0 was provided by the user.
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extern "C" {
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fn foo(ptr: *const u8);
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fn foo_mut(ptr: *mut u8);
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fn usize(ptr: *const usize);
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fn usize_mut(ptr: *mut usize);
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}
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fn main() {
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unsafe {
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foo(std::ptr::null());
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//~^ mismatched types [E0308]
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//~| if you meant to create a null pointer, use `std::ptr::null()`
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foo_mut(std::ptr::null_mut());
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//~^ mismatched types [E0308]
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//~| if you meant to create a null pointer, use `std::ptr::null_mut()`
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usize(std::ptr::null());
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//~^ mismatched types [E0308]
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//~| if you meant to create a null pointer, use `std::ptr::null()`
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usize_mut(std::ptr::null_mut());
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//~^ mismatched types [E0308]
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//~| if you meant to create a null pointer, use `std::ptr::null_mut()`
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}
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}
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