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Compile error due to the wrong literal data type #68951
Description
I tried this code:
fn main() {
let array = [0x42u8; 10];
for b in &array {
let lo = b & 0xf;
let hi = (b >> 4) & 0xf;
}
}I expected to see this happen: it should be compiled
Instead, this happened:
error[E0277]: no implementation for `u8 & i32`
--> src/main.rs:5:27
|
5 | let hi = (b >> 4) & 0xf;
| ^ no implementation for `u8 & i32`
|
= help: the trait `std::ops::BitAnd<i32>` is not implemented for `u8`
Meta
rustc --version --verbose:
rustc 1.41.0 (5e1a79984 2020-01-27)
binary: rustc
commit-hash: 5e1a799842ba6ed4a57e91f7ab9435947482f7d8
commit-date: 2020-01-27
host: x86_64-unknown-linux-gnu
release: 1.41.0
LLVM version: 9.0
The same happens on beta and nightly.
Backtrace
Compiling playground v0.0.1 (/playground)
error[E0277]: no implementation for `u8 & i32`
--> src/main.rs:5:27
|
5 | let hi = (b >> 4) & 0xf;
| ^ no implementation for `u8 & i32`
|
= help: the trait `std::ops::BitAnd<i32>` is not implemented for `u8`
error: aborting due to previous error
For more information about this error, try `rustc --explain E0277`.
error: could not compile `playground`.
To learn more, run the command again with --verbose.
Activity
pragmatrix commentedon Aug 26, 2020
Looks like this bug has been fixed in one of the recent Rust updates. Rust stable 1.45.2 compiles the code above without errors.
Rollup merge of rust-lang#77388 - JohnTitor:add-tests, r=Dylan-DPC
Rollup merge of rust-lang#77388 - JohnTitor:add-tests, r=Dylan-DPC