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Rollup merge of #26349 - petrochenkov:bitwise, r=steveklabnik

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I'm surprised that bitwise operators `&`, `|` and `^` are implemented for `bool` arguments, because inspection of boolean's bits is not something that should be encouraged and because `&&` -> `&` is a common typo, but if they are implemented, then their behavior should be documented.
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Manish Goregaokar 2015-06-18 13:38:10 +05:30
commit 3afc385ae1
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src/doc/reference.md
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@ -2779,22 +2779,24 @@ meaning of the operators on standard types is given here.
Like the [arithmetic operators](#arithmetic-operators), bitwise operators are
syntactic sugar for calls to methods of built-in traits. This means that
bitwise operators can be overridden for user-defined types. The default
meaning of the operators on standard types is given here.
meaning of the operators on standard types is given here. Bitwise `&`, `|` and
`^` applied to boolean arguments are equivalent to logical `&&`, `||` and `!=`
evaluated in non-lazy fashion.
* `&`
: And.
: Bitwise AND.
Calls the `bitand` method of the `std::ops::BitAnd` trait.
* `|`
: Inclusive or.
: Bitwise inclusive OR.
Calls the `bitor` method of the `std::ops::BitOr` trait.
* `^`
: Exclusive or.
: Bitwise exclusive OR.
Calls the `bitxor` method of the `std::ops::BitXor` trait.
* `<<`
: Left shift.
Calls the `shl` method of the `std::ops::Shl` trait.
* `>>`
: Right shift.
: Right shift (arithmetic).
Calls the `shr` method of the `std::ops::Shr` trait.
#### Lazy boolean operators