# Struct std::str::pattern::CharPredicateSearcher [−] [src]

    pub struct CharPredicateSearcher<'a, F> where F: FnMut(char) -> bool(_);

Unstable (`pattern` #27721)

: API not fully fleshed out and ready to be stabilized

Associated type for `<F as Pattern<'a>>::Searcher`.

## Trait Implementations

### `impl<'a, F> Searcher<'a> for CharPredicateSearcher<'a, F> where F: FnMut(char) -> bool`

#### `fn haystack(&self) -> &'a str`

#### `fn next(&mut self) -> SearchStep`

#### `fn next_match(&mut self) -> Option<(usize, usize)>`

#### `fn next_reject(&mut self) -> Option<(usize, usize)>`

### `impl<'a, F> ReverseSearcher<'a> for CharPredicateSearcher<'a, F> where F: FnMut(char) -> bool`

#### `fn next_back(&mut self) -> SearchStep`

#### `fn next_match_back(&mut self) -> Option<(usize, usize)>`

#### `fn next_reject_back(&mut self) -> Option<(usize, usize)>`

### `impl<'a, F> DoubleEndedSearcher<'a> for CharPredicateSearcher<'a, F> where F: FnMut(char) -> bool`

### Derived Implementations

### `impl<'a, F> Clone for CharPredicateSearcher<'a, F> where F: Clone + FnMut(char) -> bool`

#### `fn clone(&self) -> CharPredicateSearcher<'a, F>`

#### `fn clone_from(&mut self, source: &Self)`

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