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error[E0658]: `while` is not allowed in a `const`
--> $DIR/infinite_loop.rs:6:9
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LL | / while n != 0 {
LL | |
LL | | n = if n % 2 == 0 { n/2 } else { 3*n + 1 };
LL | |
LL | |
LL | | }
| |_________^
|
= note: see issue #52000 <https://github.com/rust-lang/rust/issues/52000> for more information
= help: add `#![feature(const_loop)]` to the crate attributes to enable
= help: add `#![feature(const_if_match)]` to the crate attributes to enable
error[E0658]: `if` is not allowed in a `const`
--> $DIR/infinite_loop.rs:8:17
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LL | n = if n % 2 == 0 { n/2 } else { 3*n + 1 };
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: see issue #49146 <https://github.com/rust-lang/rust/issues/49146> for more information
= help: add `#![feature(const_if_match)]` to the crate attributes to enable
error[E0080]: evaluation of constant value failed
--> $DIR/infinite_loop.rs:8:20
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LL | n = if n % 2 == 0 { n/2 } else { 3*n + 1 };
| ^^^^^^^^^^ exceeded interpreter step limit (see `#[const_eval_limit]`)
error: aborting due to 3 previous errors
Some errors have detailed explanations: E0080, E0658.
For more information about an error, try `rustc --explain E0080`.
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