The unit value is not a literal, it is a tuple expression
@@ -232,10 +232,9 @@ exist in `core::ops` and `core::cmp` with the same names.
A _literal expression_ consists of one of the [literal](tokens.html#literals)
forms described earlier. It directly describes a number, character, string,
-boolean value, or the unit value.
+or boolean value.
```rust
-(); // unit type
"hello"; // string type
'5'; // character type
5; // integer type
@@ -272,6 +271,7 @@ values.
```rust
(0.0, 4.5);
("a", 4usize, true);
+();
```
You can disambiguate a single-element tuple from a value in parentheses with a
