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book: Some operator fixes for the syntax index

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- Correct the names of the comparison traits (PartialOrd)
- Mention only the traits that overload the operator (PartialOrd,
  PartialEq), not operator-unrelated traits (Ord, Eq).
- Add `!=` operator.
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Ulrik Sverdrup 2015-12-24 00:20:12 +01:00
parent 42c3ef8f9f
commit 1b438314a0
1 changed files with 6 additions and 5 deletions
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11
src/doc/book/syntax-index.md
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@ -41,6 +41,7 @@
* `!` (`ident!(…)`, `ident!{…}`, `ident![…]`): denotes macro expansion. See [Macros].
* `!` (`!expr`): bitwise or logical complement. Overloadable (`Not`).
* `!=` (`var != expr`): nonequality comparison. Overloadable (`PartialEq`).
* `%` (`expr % expr`): arithmetic remainder. Overloadable (`Rem`).
* `%=` (`var %= expr`): arithmetic remainder & assignment.
* `&` (`expr & expr`): bitwise and. Overloadable (`BitAnd`).
@ -75,13 +76,13 @@
* `;` (`[…; len]`): part of fixed-size array syntax. See [Primitive Types (Arrays)].
* `<<` (`expr << expr`): left-shift. Overloadable (`Shl`).
* `<<=` (`var <<= expr`): left-shift & assignment.
* `<` (`expr < expr`): less-than comparison. Overloadable (`Cmp`, `PartialCmp`).
* `<=` (`var <= expr`): less-than or equal-to comparison. Overloadable (`Cmp`, `PartialCmp`).
* `<` (`expr < expr`): less-than comparison. Overloadable (`PartialOrd`).
* `<=` (`var <= expr`): less-than or equal-to comparison. Overloadable (`PartialOrd`).
* `=` (`var = expr`, `ident = type`): assignment/equivalence. See [Variable Bindings], [`type` Aliases], generic parameter defaults.
* `==` (`var == expr`): comparison. Overloadable (`Eq`, `PartialEq`).
* `==` (`var == expr`): equality comparison. Overloadable (`PartialEq`).
* `=>` (`pat => expr`): part of match arm syntax. See [Match].
* `>` (`expr > expr`): greater-than comparison. Overloadable (`Cmp`, `PartialCmp`).
* `>=` (`var >= expr`): greater-than or equal-to comparison. Overloadable (`Cmp`, `PartialCmp`).
* `>` (`expr > expr`): greater-than comparison. Overloadable (`PartialOrd`).
* `>=` (`var >= expr`): greater-than or equal-to comparison. Overloadable (`PartialOrd`).
* `>>` (`expr >> expr`): right-shift. Overloadable (`Shr`).
* `>>=` (`var >>= expr`): right-shift & assignment.
* `@` (`ident @ pat`): pattern binding. See [Patterns (Bindings)].