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@@ -0,0 +1,36 @@
+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`.