blob: f85e60f63fb3b4e0745d3df0e40188ca24a67ca0 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
|
error: generic parameters may not be used in const operations
--> $DIR/const-argument-if-length.rs:17:24
|
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(generic_const_exprs)]` 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:15:12
|
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: consider removing the `?Sized` bound to make the type parameter `Sized`
|
LL - pub struct AtLeastByte<T: ?Sized> {
LL + pub struct AtLeastByte<T> {
|
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`.
|
