Created
April 16, 2024 01:32
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Byte iterator
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struct ByteIter<'remainder> { | |
remainder: &'remainder [u8], | |
} | |
/* impl<'remainder> ByteIter<'remainder> { | |
fn next(&mut self) -> Option<&'remainder u8> { | |
if self.remainder.is_empty() { | |
None | |
} else { | |
let byte = &self.remainder[0]; | |
self.remainder = &self.remainder[1..]; | |
Some(byte) | |
} | |
} | |
} */ | |
impl<'remainder> Iterator for ByteIter<'remainder> { | |
type Item = &'remainder u8; | |
fn next(&mut self) -> Option<Self::Item> { | |
if self.remainder.is_empty() { | |
None | |
} else { | |
let byte = &self.remainder[0]; | |
self.remainder = &self.remainder[1..]; | |
Some(byte) | |
} | |
} | |
} | |
fn main() { | |
let mut bytes = ByteIter { | |
remainder: b"hello world", | |
}; | |
// bytes.for_each(|byte| println!("byte {}", byte)); | |
assert_eq!(Some(&b'h'), bytes.next()); | |
let byte1 = bytes.next(); | |
let byte2 = bytes.next(); | |
if byte1 == byte2 {} | |
} |
Author
DefectingCat
commented
Apr 16, 2024
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