mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-30 10:45:18 +00:00
c4c22b0d52
```
error[E0277]: the size for values of type `[i32]` cannot be known at compilation time
--> f100.rs:2:33
|
2 | let _ = std::mem::size_of::<[i32]>();
| ^^^^^ doesn't have a size known at compile-time
|
= help: the trait `Sized` is not implemented for `[i32]`
note: required by an implicit `Sized` bound in `std::mem::size_of`
--> /home/gh-estebank/rust/library/core/src/mem/mod.rs:312:22
|
312 | pub const fn size_of<T>() -> usize {
| ^ required by the implicit `Sized` requirement on this bound in `size_of`
```
Fix #120178.
24 lines
1.0 KiB
Rust
24 lines
1.0 KiB
Rust
fn process_slice(data: &[i32]) {
|
|
todo!()
|
|
}
|
|
|
|
fn main() {
|
|
let some_generated_vec = (0..10).collect();
|
|
//~^ ERROR the size for values of type `[i32]` cannot be known at compilation time
|
|
//~| ERROR the size for values of type `[i32]` cannot be known at compilation time
|
|
//~| ERROR a slice of type `[i32]` cannot be built since `[i32]` has no definite size
|
|
//~| NOTE try explicitly collecting into a `Vec<{integer}>`
|
|
//~| NOTE required by an implicit `Sized` bound in `collect`
|
|
//~| NOTE required by a bound in `collect`
|
|
//~| NOTE all local variables must have a statically known size
|
|
//~| NOTE doesn't have a size known at compile-time
|
|
//~| NOTE doesn't have a size known at compile-time
|
|
process_slice(&some_generated_vec);
|
|
|
|
let some_generated_vec = (0..10).collect();
|
|
//~^ ERROR a slice of type `&[i32]` cannot be built since we need to store the elements somewhere
|
|
//~| NOTE try explicitly collecting into a `Vec<{integer}>`
|
|
//~| NOTE required by a bound in `collect`
|
|
process_slice(some_generated_vec);
|
|
}
|