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倉庫指標
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描述
iota! {
pub(crate) const A: u8 = 1 << iota;
| B
| C
}
error: no rules expected the token `(`
--> src/main.rs:4:8
|
4 | pub(crate) const A: u8 = 1 << iota;
| ^ no rules expected this token in macro call