| error[E0606]: casting `*const U` as `*const V` is invalid |
| --> $DIR/cast-rfc0401.rs:3:5 |
| | |
| LL | u as *const V //~ ERROR is invalid |
| | ^^^^^^^^^^^^^ |
| | |
| = note: vtable kinds may not match |
| |
| error[E0606]: casting `*const U` as `*const str` is invalid |
| --> $DIR/cast-rfc0401.rs:8:5 |
| | |
| LL | u as *const str //~ ERROR is invalid |
| | ^^^^^^^^^^^^^^^ |
| | |
| = note: vtable kinds may not match |
| |
| error[E0609]: no field `f` on type `fn() {main}` |
| --> $DIR/cast-rfc0401.rs:65:18 |
| | |
| LL | let _ = main.f as *const u32; //~ ERROR no field |
| | ^ |
| |
| error[E0605]: non-primitive cast: `*const u8` as `&u8` |
| --> $DIR/cast-rfc0401.rs:29:13 |
| | |
| LL | let _ = v as &u8; //~ ERROR non-primitive cast |
| | ^^^^^^^^ |
| | |
| = note: an `as` expression can only be used to convert between primitive types. Consider using the `From` trait |
| |
| error[E0605]: non-primitive cast: `*const u8` as `E` |
| --> $DIR/cast-rfc0401.rs:30:13 |
| | |
| LL | let _ = v as E; //~ ERROR non-primitive cast |
| | ^^^^^^ |
| | |
| = note: an `as` expression can only be used to convert between primitive types. Consider using the `From` trait |
| |
| error[E0605]: non-primitive cast: `*const u8` as `fn()` |
| --> $DIR/cast-rfc0401.rs:31:13 |
| | |
| LL | let _ = v as fn(); //~ ERROR non-primitive cast |
| | ^^^^^^^^^ |
| | |
| = note: an `as` expression can only be used to convert between primitive types. Consider using the `From` trait |
| |
| error[E0605]: non-primitive cast: `*const u8` as `(u32,)` |
| --> $DIR/cast-rfc0401.rs:32:13 |
| | |
| LL | let _ = v as (u32,); //~ ERROR non-primitive cast |
| | ^^^^^^^^^^^ |
| | |
| = note: an `as` expression can only be used to convert between primitive types. Consider using the `From` trait |
| |
| error[E0605]: non-primitive cast: `std::option::Option<&*const u8>` as `*const u8` |
| --> $DIR/cast-rfc0401.rs:33:13 |
| | |
| LL | let _ = Some(&v) as *const u8; //~ ERROR non-primitive cast |
| | ^^^^^^^^^^^^^^^^^^^^^ |
| | |
| = note: an `as` expression can only be used to convert between primitive types. Consider using the `From` trait |
| |
| error[E0606]: casting `*const u8` as `f32` is invalid |
| --> $DIR/cast-rfc0401.rs:35:13 |
| | |
| LL | let _ = v as f32; //~ ERROR is invalid |
| | ^^^^^^^^ |
| |
| error[E0606]: casting `fn() {main}` as `f64` is invalid |
| --> $DIR/cast-rfc0401.rs:36:13 |
| | |
| LL | let _ = main as f64; //~ ERROR is invalid |
| | ^^^^^^^^^^^ |
| |
| error[E0606]: casting `&*const u8` as `usize` is invalid |
| --> $DIR/cast-rfc0401.rs:37:13 |
| | |
| LL | let _ = &v as usize; //~ ERROR is invalid |
| | ^^^^^^^^^^^ |
| | |
| = 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 is invalid |
| | ^^^^^^^^^^^^^^ |
| |
| error[E0054]: cannot cast as `bool` |
| --> $DIR/cast-rfc0401.rs:39:13 |
| | |
| LL | let _ = 3_i32 as bool; //~ ERROR cannot cast |
| | ^^^^^^^^^^^^^ help: compare with zero instead: `3_i32 != 0` |
| |
| error[E0054]: cannot cast as `bool` |
| --> $DIR/cast-rfc0401.rs:40:13 |
| | |
| LL | let _ = E::A as bool; //~ ERROR cannot cast |
| | ^^^^^^^^^^^^ unsupported cast |
| |
| error[E0604]: only `u8` can be cast as `char`, not `u32` |
| --> $DIR/cast-rfc0401.rs:41:13 |
| | |
| LL | let _ = 0x61u32 as char; //~ ERROR can be cast as |
| | ^^^^^^^^^^^^^^^ |
| |
| error[E0606]: casting `bool` as `f32` is invalid |
| --> $DIR/cast-rfc0401.rs:43:13 |
| | |
| LL | let _ = false as f32; //~ ERROR is invalid |
| | ^^^^^^^^^^^^ |
| | |
| = 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; //~ ERROR is invalid |
| | ^^^^^^^^^^^ |
| | |
| = 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; //~ ERROR is invalid |
| | ^^^^^^^^^^ |
| | |
| = 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 is invalid |
| | ^^^^^^^^^^^^^^^^^^ |
| |
| error[E0606]: casting `E` as `*const u8` is invalid |
| --> $DIR/cast-rfc0401.rs:48:13 |
| | |
| LL | let _ = E::A as *const u8; //~ ERROR is invalid |
| | ^^^^^^^^^^^^^^^^^ |
| |
| error[E0606]: casting `char` as `*const u8` is invalid |
| --> $DIR/cast-rfc0401.rs:49:13 |
| | |
| LL | let _ = 'a' as *const u8; //~ ERROR is invalid |
| | ^^^^^^^^^^^^^^^^ |
| |
| error[E0606]: casting `usize` as `*const [u8]` is invalid |
| --> $DIR/cast-rfc0401.rs:51:13 |
| | |
| LL | let _ = 42usize as *const [u8]; //~ ERROR is invalid |
| | ^^^^^^^^^^^^^^^^^^^^^^ |
| |
| error[E0607]: cannot cast thin pointer `*const u8` to fat pointer `*const [u8]` |
| --> $DIR/cast-rfc0401.rs:52:13 |
| | |
| LL | let _ = v as *const [u8]; //~ ERROR cannot cast |
| | ^^^^^^^^^^^^^^^^ |
| |
| error[E0606]: casting `&dyn Foo` as `*const str` is invalid |
| --> $DIR/cast-rfc0401.rs:54:13 |
| | |
| LL | let _ = foo as *const str; //~ ERROR is invalid |
| | ^^^^^^^^^^^^^^^^^ |
| |
| error[E0606]: casting `&dyn Foo` as `*mut str` is invalid |
| --> $DIR/cast-rfc0401.rs:55:13 |
| | |
| LL | let _ = foo as *mut str; //~ ERROR is invalid |
| | ^^^^^^^^^^^^^^^ |
| |
| error[E0606]: casting `fn() {main}` as `*mut str` is invalid |
| --> $DIR/cast-rfc0401.rs:56:13 |
| | |
| LL | let _ = main as *mut str; //~ ERROR is invalid |
| | ^^^^^^^^^^^^^^^^ |
| |
| error[E0606]: casting `&f32` as `*mut f32` is invalid |
| --> $DIR/cast-rfc0401.rs:57:13 |
| | |
| LL | let _ = &f as *mut f32; //~ ERROR is invalid |
| | ^^^^^^^^^^^^^^ |
| |
| error[E0606]: casting `&f32` as `*const f64` is invalid |
| --> $DIR/cast-rfc0401.rs:58:13 |
| | |
| LL | let _ = &f as *const f64; //~ ERROR is invalid |
| | ^^^^^^^^^^^^^^^^ |
| |
| error[E0606]: casting `*const [i8]` as `usize` is invalid |
| --> $DIR/cast-rfc0401.rs:59:13 |
| | |
| LL | let _ = fat_sv as usize; //~ ERROR is invalid |
| | ^^^^^^^^^^^^^^^ |
| | |
| = 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]; //~ ERROR is invalid |
| | ^^^^^^^^^^^^^^^^^^ |
| | |
| = note: vtable kinds may not match |
| |
| error[E0606]: casting `*const dyn Foo` as `*const dyn Bar` is invalid |
| --> $DIR/cast-rfc0401.rs:69:13 |
| | |
| LL | let _ = cf as *const Bar; //~ ERROR is invalid |
| | ^^^^^^^^^^^^^^^^ |
| | |
| = note: vtable kinds may not match |
| |
| 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 Foo; //~ ERROR the size for values of type |
| | ^^^^^ doesn't have a size known at compile-time |
| | |
| = help: the trait `std::marker::Sized` is not implemented for `[u8]` |
| = note: to learn more, visit <https://doc.rust-lang.org/book/ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait> |
| = note: required for the cast to the object type `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 Foo; //~ ERROR the size for values of type |
| | ^ doesn't have a size known at compile-time |
| | |
| = help: the trait `std::marker::Sized` is not implemented for `str` |
| = note: to learn more, visit <https://doc.rust-lang.org/book/ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait> |
| = note: required for the cast to the object type `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>>(); //~ ERROR is invalid |
| | -^^^^^^^ |
| | | |
| | cannot cast `&{float}` as `f32` |
| | help: dereference the expression: `*s` |
| |
| error: aborting due to 34 previous errors |
| |
| Some errors occurred: E0054, E0277, E0604, E0605, E0606, E0607, E0609. |
| For more information about an error, try `rustc --explain E0054`. |
