| error: generic parameters may not be used in const operations |
| --> $DIR/const-argument-if-length.rs:18:24 |
| | |
| LL | pad: [u8; is_zst::<T>()], |
| | ^ cannot perform const operation using `T` |
| | |
| = note: type parameters may not be used in const expressions |
| = help: use `#![feature(const_generics)]` and `#![feature(const_evaluatable_checked)]` to allow generic const expressions |
| |
| error[E0277]: the size for values of type `T` cannot be known at compilation time |
| --> $DIR/const-argument-if-length.rs:16:12 |
| | |
| LL | pub struct AtLeastByte<T: ?Sized> { |
| | - this type parameter needs to be `std::marker::Sized` |
| LL | value: T, |
| | ^ doesn't have a size known at compile-time |
| | |
| = note: only the last field of a struct may have a dynamically sized type |
| = help: change the field's type to have a statically known size |
| help: borrowed types always have a statically known size |
| | |
| LL | value: &T, |
| | ^ |
| help: the `Box` type always has a statically known size and allocates its contents in the heap |
| | |
| LL | value: Box<T>, |
| | ^^^^ ^ |
| |
| error: aborting due to 2 previous errors |
| |
| For more information about this error, try `rustc --explain E0277`. |
