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use memchr for alligned string reads

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Robin Appelman 2019-12-25 23:10:54 +01:00
commit 85abe2d9e8
2 changed files with 3 additions and 6 deletions
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1
Cargo.toml
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@ -14,6 +14,7 @@ travis-ci = { repository = "icewind1991/bitstream_reader" }
num-traits = "0.2" num-traits = "0.2"
bitstream_reader_derive = { version = "0.6", path = "bitstream_reader_derive" } bitstream_reader_derive = { version = "0.6", path = "bitstream_reader_derive" }
bytecount = "0.5" bytecount = "0.5"
memchr = "2.2"
[dev-dependencies] [dev-dependencies]
maplit = "1.0.1" maplit = "1.0.1"

8
src/buffer.rs
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@ -431,12 +431,8 @@ where
#[inline] #[inline]
fn find_null_byte(&self, byte_index: usize) -> usize { fn find_null_byte(&self, byte_index: usize) -> usize {
self.bytes memchr::memchr(0, &self.bytes[byte_index..])
.iter() .map(|index| index + byte_index)
.enumerate()
.skip(byte_index)
.find(|(_, byte)| **byte == 0)
.map(|(i, _)| i)
.unwrap_or(self.byte_len()) .unwrap_or(self.byte_len())
} }