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