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|
error[E0606]: casting `*const U` as `*const V` is invalid
--> $DIR/cast-rfc0401.rs:3:5
|
LL | u as *const V
| ^^^^^^^^^^^^^
|
= note: the pointers may have different metadata
error[E0606]: casting `*const U` as `*const str` is invalid
--> $DIR/cast-rfc0401.rs:8:5
|
LL | u as *const str
| ^^^^^^^^^^^^^^^
|
= note: the pointers may have different metadata
error[E0609]: no field `f` on type `fn() {main}`
--> $DIR/cast-rfc0401.rs:65:18
|
LL | let _ = main.f as *const u32;
| ^ unknown field
error[E0605]: non-primitive cast: `*const u8` as `&u8`
--> $DIR/cast-rfc0401.rs:29:13
|
LL | let _ = v as &u8;
| ^^^^^^^^ invalid cast
|
help: consider borrowing the value
|
LL - let _ = v as &u8;
LL + let _ = &*v;
|
error[E0605]: non-primitive cast: `*const u8` as `E`
--> $DIR/cast-rfc0401.rs:30:13
|
LL | let _ = v as E;
| ^^^^^^ an `as` expression can only be used to convert between primitive types or to coerce to a specific trait object
error[E0605]: non-primitive cast: `*const u8` as `fn()`
--> $DIR/cast-rfc0401.rs:31:13
|
LL | let _ = v as fn();
| ^^^^^^^^^ invalid cast
error[E0605]: non-primitive cast: `*const u8` as `(u32,)`
--> $DIR/cast-rfc0401.rs:32:13
|
LL | let _ = v as (u32,);
| ^^^^^^^^^^^ an `as` expression can only be used to convert between primitive types or to coerce to a specific trait object
error[E0605]: non-primitive cast: `Option<&*const u8>` as `*const u8`
--> $DIR/cast-rfc0401.rs:33:13
|
LL | let _ = Some(&v) as *const u8;
| ^^^^^^^^^^^^^^^^^^^^^ an `as` expression can only be used to convert between primitive types or to coerce to a specific trait object
error[E0606]: casting `*const u8` as `f32` is invalid
--> $DIR/cast-rfc0401.rs:35:13
|
LL | let _ = v as f32;
| ^^^^^^^^
error[E0606]: casting `fn() {main}` as `f64` is invalid
--> $DIR/cast-rfc0401.rs:36:13
|
LL | let _ = main as f64;
| ^^^^^^^^^^^
error[E0606]: casting `&*const u8` as `usize` is invalid
--> $DIR/cast-rfc0401.rs:37:13
|
LL | let _ = &v as usize;
| ^^^^^^^^^^^
|
= help: cast through a raw pointer first
error[E0606]: casting `f32` as `*const u8` is invalid
--> $DIR/cast-rfc0401.rs:38:13
|
LL | let _ = f as *const u8;
| ^^^^^^^^^^^^^^
error[E0054]: cannot cast `i32` as `bool`
--> $DIR/cast-rfc0401.rs:39:13
|
LL | let _ = 3_i32 as bool;
| ^^^^^^^^^^^^^
|
help: compare with zero instead
|
LL | let _ = 3_i32 != 0;
| ~~~~
error[E0054]: cannot cast `E` as `bool`
--> $DIR/cast-rfc0401.rs:40:13
|
LL | let _ = E::A as bool;
| ^^^^^^^^^^^^ unsupported cast
error[E0604]: only `u8` can be cast as `char`, not `u32`
--> $DIR/cast-rfc0401.rs:41:13
|
LL | let _ = 0x61u32 as char;
| ^^^^^^^^^^^^^^^
| |
| invalid cast
| help: try `char::from_u32` instead: `char::from_u32(0x61u32)`
error[E0606]: casting `bool` as `f32` is invalid
--> $DIR/cast-rfc0401.rs:43:13
|
LL | let _ = false as f32;
| ^^^^^^^^^^^^
|
= help: cast through an integer first
error[E0606]: casting `E` as `f32` is invalid
--> $DIR/cast-rfc0401.rs:44:13
|
LL | let _ = E::A as f32;
| ^^^^^^^^^^^
|
= help: cast through an integer first
error[E0606]: casting `char` as `f32` is invalid
--> $DIR/cast-rfc0401.rs:45:13
|
LL | let _ = 'a' as f32;
| ^^^^^^^^^^
|
= help: cast through an integer first
error[E0606]: casting `bool` as `*const u8` is invalid
--> $DIR/cast-rfc0401.rs:47:13
|
LL | let _ = false as *const u8;
| ^^^^^^^^^^^^^^^^^^
error[E0606]: casting `E` as `*const u8` is invalid
--> $DIR/cast-rfc0401.rs:48:13
|
LL | let _ = E::A as *const u8;
| ^^^^^^^^^^^^^^^^^
error[E0606]: casting `char` as `*const u8` is invalid
--> $DIR/cast-rfc0401.rs:49:13
|
LL | let _ = 'a' as *const u8;
| ^^^^^^^^^^^^^^^^
error[E0606]: cannot cast `usize` to a pointer that is wide
--> $DIR/cast-rfc0401.rs:51:24
|
LL | let _ = 42usize as *const [u8];
| ------- ^^^^^^^^^^^ creating a `*const [u8]` requires both an address and a length
| |
| consider casting this expression to `*const ()`, then using `core::ptr::from_raw_parts`
error[E0607]: cannot cast thin pointer `*const u8` to wide pointer `*const [u8]`
--> $DIR/cast-rfc0401.rs:52:13
|
LL | let _ = v as *const [u8];
| ^^^^^^^^^^^^^^^^
error[E0606]: casting `&dyn Foo` as `*const str` is invalid
--> $DIR/cast-rfc0401.rs:54:13
|
LL | let _ = foo as *const str;
| ^^^^^^^^^^^^^^^^^
error[E0606]: casting `&dyn Foo` as `*mut str` is invalid
--> $DIR/cast-rfc0401.rs:55:13
|
LL | let _ = foo as *mut str;
| ^^^^^^^^^^^^^^^
error[E0606]: casting `fn() {main}` as `*mut str` is invalid
--> $DIR/cast-rfc0401.rs:56:13
|
LL | let _ = main as *mut str;
| ^^^^^^^^^^^^^^^^
error[E0606]: casting `&f32` as `*mut f32` is invalid
--> $DIR/cast-rfc0401.rs:57:13
|
LL | let _ = &f as *mut f32;
| ^^^^^^^^^^^^^^
error[E0606]: casting `&f32` as `*const f64` is invalid
--> $DIR/cast-rfc0401.rs:58:13
|
LL | let _ = &f as *const f64;
| ^^^^^^^^^^^^^^^^
error[E0606]: casting `*const [i8]` as `usize` is invalid
--> $DIR/cast-rfc0401.rs:59:13
|
LL | let _ = fat_sv as usize;
| ^^^^^^^^^^^^^^^
|
= help: cast through a thin pointer first
error[E0606]: casting `*const dyn Foo` as `*const [u16]` is invalid
--> $DIR/cast-rfc0401.rs:68:13
|
LL | let _ = cf as *const [u16];
| ^^^^^^^^^^^^^^^^^^
|
= note: the pointers have different metadata
error[E0606]: casting `*const dyn Foo` as `*const dyn Bar` is invalid
--> $DIR/cast-rfc0401.rs:69:13
|
LL | let _ = cf as *const dyn Bar;
| ^^^^^^^^^^^^^^^^^^^^
|
= note: the trait objects may have different vtables
error[E0277]: the size for values of type `[u8]` cannot be known at compilation time
--> $DIR/cast-rfc0401.rs:53:13
|
LL | let _ = fat_v as *const dyn Foo;
| ^^^^^ doesn't have a size known at compile-time
|
= help: the trait `Sized` is not implemented for `[u8]`
= note: required for the cast from `*const [u8]` to `*const dyn Foo`
error[E0277]: the size for values of type `str` cannot be known at compilation time
--> $DIR/cast-rfc0401.rs:62:13
|
LL | let _ = a as *const dyn Foo;
| ^ doesn't have a size known at compile-time
|
= help: the trait `Sized` is not implemented for `str`
= note: required for the cast from `*const str` to `*const dyn Foo`
error[E0606]: casting `&{float}` as `f32` is invalid
--> $DIR/cast-rfc0401.rs:71:30
|
LL | vec![0.0].iter().map(|s| s as f32).collect::<Vec<f32>>();
| ^^^^^^^^
|
help: dereference the expression
|
LL | vec![0.0].iter().map(|s| *s as f32).collect::<Vec<f32>>();
| +
error: aborting due to 34 previous errors
Some errors have detailed explanations: E0054, E0277, E0604, E0605, E0606, E0607, E0609.
For more information about an error, try `rustc --explain E0054`.
|
