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Jakub Bukaj 2014-11-09 16:19:16 +01:00
parent 28b1b2ec39
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src/doc/reference.md
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@ -458,10 +458,9 @@ Examples of floating-point literals of various forms:
12E+99_f64; // type f64
```
##### Unit and boolean literals
##### Boolean literals
The _unit value_, the only value of the type that has the same name, is written
as `()`. The two values of the boolean type are written `true` and `false`.
The two values of the boolean type are written `true` and `false`.
### Symbols
@ -2717,7 +2716,7 @@ or an item. Path expressions are [lvalues](#lvalues,-rvalues-and-temporaries).
### Tuple expressions
Tuples are written by enclosing one or more comma-separated expressions in
Tuples are written by enclosing zero or more comma-separated expressions in
parentheses. They are used to create [tuple-typed](#tuple-types) values.
```{.tuple}
@ -2726,6 +2725,11 @@ parentheses. They are used to create [tuple-typed](#tuple-types) values.
("a", 4u, true);
```
### Unit expressions
The expression `()` denotes the _unit value_, the only value of the type with
the same name.
### Structure expressions
```{.ebnf .gram}