mirror of
https://github.com/rust-lang/rust.git
synced 2025-11-25 07:47:24 +00:00
79 lines
4.0 KiB
Plaintext
79 lines
4.0 KiB
Plaintext
warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
|
|
--> $DIR/fn-ptr-comparisons-weird.rs:5:5
|
|
|
|
|
LL | #[derive(PartialEq, Eq)]
|
|
| --------- in this derive macro expansion
|
|
LL | struct A {
|
|
LL | f: fn(),
|
|
| ^^^^^^^
|
|
|
|
|
= note: the address of the same function can vary between different codegen units
|
|
= note: furthermore, different functions could have the same address after being merged together
|
|
= note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
|
|
= note: `#[warn(unpredictable_function_pointer_comparisons)]` on by default
|
|
|
|
warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
|
|
--> $DIR/fn-ptr-comparisons-weird.rs:25:13
|
|
|
|
|
LL | let _ = f > g;
|
|
| ^^^^^
|
|
|
|
|
= note: the address of the same function can vary between different codegen units
|
|
= note: furthermore, different functions could have the same address after being merged together
|
|
= note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
|
|
|
|
warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
|
|
--> $DIR/fn-ptr-comparisons-weird.rs:27:13
|
|
|
|
|
LL | let _ = f >= g;
|
|
| ^^^^^^
|
|
|
|
|
= note: the address of the same function can vary between different codegen units
|
|
= note: furthermore, different functions could have the same address after being merged together
|
|
= note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
|
|
|
|
warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
|
|
--> $DIR/fn-ptr-comparisons-weird.rs:29:13
|
|
|
|
|
LL | let _ = f <= g;
|
|
| ^^^^^^
|
|
|
|
|
= note: the address of the same function can vary between different codegen units
|
|
= note: furthermore, different functions could have the same address after being merged together
|
|
= note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
|
|
|
|
warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
|
|
--> $DIR/fn-ptr-comparisons-weird.rs:31:13
|
|
|
|
|
LL | let _ = f < g;
|
|
| ^^^^^
|
|
|
|
|
= note: the address of the same function can vary between different codegen units
|
|
= note: furthermore, different functions could have the same address after being merged together
|
|
= note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
|
|
|
|
warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
|
|
--> $DIR/fn-ptr-comparisons-weird.rs:33:13
|
|
|
|
|
LL | let _ = assert_eq!(g, g);
|
|
| ^^^^^^^^^^^^^^^^
|
|
|
|
|
= note: the address of the same function can vary between different codegen units
|
|
= note: furthermore, different functions could have the same address after being merged together
|
|
= note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
|
|
= note: this warning originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
|
|
|
|
warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
|
|
--> $DIR/fn-ptr-comparisons-weird.rs:35:13
|
|
|
|
|
LL | let _ = assert_ne!(g, g);
|
|
| ^^^^^^^^^^^^^^^^
|
|
|
|
|
= note: the address of the same function can vary between different codegen units
|
|
= note: furthermore, different functions could have the same address after being merged together
|
|
= note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
|
|
= note: this warning originates in the macro `assert_ne` (in Nightly builds, run with -Z macro-backtrace for more info)
|
|
|
|
warning: 7 warnings emitted
|
|
|