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-rw-r--r-- | compiler/rustc_error_codes/src/error_codes/E0608.md | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/compiler/rustc_error_codes/src/error_codes/E0608.md b/compiler/rustc_error_codes/src/error_codes/E0608.md new file mode 100644 index 000000000..d0ebc3a26 --- /dev/null +++ b/compiler/rustc_error_codes/src/error_codes/E0608.md @@ -0,0 +1,18 @@ +An attempt to use index on a type which doesn't implement the `std::ops::Index` +trait was performed. + +Erroneous code example: + +```compile_fail,E0608 +0u8[2]; // error: cannot index into a value of type `u8` +``` + +To be able to index into a type it needs to implement the `std::ops::Index` +trait. Example: + +``` +let v: Vec<u8> = vec![0, 1, 2, 3]; + +// The `Vec` type implements the `Index` trait so you can do: +println!("{}", v[2]); +``` |