mirror of
https://github.com/rust-lang/rust.git
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f0845adb0c
```
error[E0610]: `{integer}` is a primitive type and therefore doesn't have fields
--> $DIR/attempted-access-non-fatal.rs:7:15
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LL | let _ = 2.l;
| ^
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help: if intended to be a floating point literal, consider adding a `0` after the period and a `f64` suffix
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LL - let _ = 2.l;
LL + let _ = 2.0f64;
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```
184 lines
8.1 KiB
Plaintext
184 lines
8.1 KiB
Plaintext
warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
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--> $DIR/fn-ptr-comparisons.rs:26:13
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LL | let _ = f == a;
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| ^^^^^^
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= note: the address of the same function can vary between different codegen units
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= note: furthermore, different functions could have the same address after being merged together
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= note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
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= note: `#[warn(unpredictable_function_pointer_comparisons)]` on by default
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help: refactor your code, or use `std::ptr::fn_addr_eq` to suppress the lint
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LL - let _ = f == a;
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LL + let _ = std::ptr::fn_addr_eq(f, a as fn());
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warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
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--> $DIR/fn-ptr-comparisons.rs:28:13
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LL | let _ = f != a;
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| ^^^^^^
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= note: the address of the same function can vary between different codegen units
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= note: furthermore, different functions could have the same address after being merged together
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= note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
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help: refactor your code, or use `std::ptr::fn_addr_eq` to suppress the lint
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LL - let _ = f != a;
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LL + let _ = !std::ptr::fn_addr_eq(f, a as fn());
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warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
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--> $DIR/fn-ptr-comparisons.rs:30:13
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LL | let _ = f == g;
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| ^^^^^^
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= note: the address of the same function can vary between different codegen units
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= note: furthermore, different functions could have the same address after being merged together
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= note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
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help: refactor your code, or use `std::ptr::fn_addr_eq` to suppress the lint
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LL - let _ = f == g;
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LL + let _ = std::ptr::fn_addr_eq(f, g);
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warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
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--> $DIR/fn-ptr-comparisons.rs:32:13
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LL | let _ = f == f;
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| ^^^^^^
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= note: the address of the same function can vary between different codegen units
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= note: furthermore, different functions could have the same address after being merged together
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= note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
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help: refactor your code, or use `std::ptr::fn_addr_eq` to suppress the lint
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LL - let _ = f == f;
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LL + let _ = std::ptr::fn_addr_eq(f, f);
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warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
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--> $DIR/fn-ptr-comparisons.rs:34:13
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LL | let _ = g == g;
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| ^^^^^^
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= note: the address of the same function can vary between different codegen units
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= note: furthermore, different functions could have the same address after being merged together
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= note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
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help: refactor your code, or use `std::ptr::fn_addr_eq` to suppress the lint
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LL - let _ = g == g;
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LL + let _ = std::ptr::fn_addr_eq(g, g);
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warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
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--> $DIR/fn-ptr-comparisons.rs:36:13
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LL | let _ = g == g;
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| ^^^^^^
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= note: the address of the same function can vary between different codegen units
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= note: furthermore, different functions could have the same address after being merged together
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= note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
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help: refactor your code, or use `std::ptr::fn_addr_eq` to suppress the lint
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LL - let _ = g == g;
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LL + let _ = std::ptr::fn_addr_eq(g, g);
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warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
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--> $DIR/fn-ptr-comparisons.rs:38:13
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LL | let _ = &g == &g;
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| ^^^^^^^^
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= note: the address of the same function can vary between different codegen units
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= note: furthermore, different functions could have the same address after being merged together
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= note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
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help: refactor your code, or use `std::ptr::fn_addr_eq` to suppress the lint
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LL - let _ = &g == &g;
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LL + let _ = std::ptr::fn_addr_eq(g, g);
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warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
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--> $DIR/fn-ptr-comparisons.rs:40:13
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LL | let _ = a as fn() == g;
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| ^^^^^^^^^^^^^^
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= note: the address of the same function can vary between different codegen units
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= note: furthermore, different functions could have the same address after being merged together
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= note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
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help: refactor your code, or use `std::ptr::fn_addr_eq` to suppress the lint
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LL - let _ = a as fn() == g;
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LL + let _ = std::ptr::fn_addr_eq(a as fn(), g);
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warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
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--> $DIR/fn-ptr-comparisons.rs:44:13
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LL | let _ = cfn == c;
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| ^^^^^^^^
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= note: the address of the same function can vary between different codegen units
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= note: furthermore, different functions could have the same address after being merged together
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= note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
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help: refactor your code, or use `std::ptr::fn_addr_eq` to suppress the lint
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LL - let _ = cfn == c;
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LL + let _ = std::ptr::fn_addr_eq(cfn, c as extern "C" fn());
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warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
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--> $DIR/fn-ptr-comparisons.rs:48:13
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LL | let _ = argsfn == args;
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| ^^^^^^^^^^^^^^
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= note: the address of the same function can vary between different codegen units
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= note: furthermore, different functions could have the same address after being merged together
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= note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
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help: refactor your code, or use `std::ptr::fn_addr_eq` to suppress the lint
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LL - let _ = argsfn == args;
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LL + let _ = std::ptr::fn_addr_eq(argsfn, args as extern "C" fn(i32) -> i32);
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warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
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--> $DIR/fn-ptr-comparisons.rs:52:13
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LL | let _ = t == test;
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| ^^^^^^^^^
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= note: the address of the same function can vary between different codegen units
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= note: furthermore, different functions could have the same address after being merged together
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= note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
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help: refactor your code, or use `std::ptr::fn_addr_eq` to suppress the lint
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LL - let _ = t == test;
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LL + let _ = std::ptr::fn_addr_eq(t, test as unsafe extern "C" fn());
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warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
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--> $DIR/fn-ptr-comparisons.rs:56:13
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LL | let _ = a1.f == a2.f;
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| ^^^^^^^^^^^^
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= note: the address of the same function can vary between different codegen units
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= note: furthermore, different functions could have the same address after being merged together
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= note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
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help: refactor your code, or use `std::ptr::fn_addr_eq` to suppress the lint
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LL - let _ = a1.f == a2.f;
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LL + let _ = std::ptr::fn_addr_eq(a1.f, a2.f);
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warning: 12 warnings emitted
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