# Function std::ptr::eq [−] [src]

    pub fn eq<T>(a: *const T, b: *const T) -> bool where T: ?Sized

🔬 This is a nightly-only experimental API. (`ptr_eq` #36497)

newly added

Compare raw pointers for equality.

This is the same as using the `==` operator, but less generic: the arguments have to be `*const T` raw pointers, not anything that implements `PartialEq`.

This can be used to compare `&T` references (which coerce to `*const T` implicitly) by their address rather than comparing the values they point to (which is what the `PartialEq for &T` implementation does).

# Examples

    #![feature(ptr_eq)]
    use std::ptr;

    let five = 5;
    let other_five = 5;
    let five_ref = &five;
    let same_five_ref = &five;
    let other_five_ref = &other_five;

    assert!(five_ref == same_five_ref);
    assert!(five_ref == other_five_ref);

    assert!(ptr::eq(five_ref, same_five_ref));
    assert!(!ptr::eq(five_ref, other_five_ref));Run

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