From 698f8c2f01ea549d77d7dc3338a12e04c11057b9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:02:58 +0200 Subject: Adding upstream version 1.64.0+dfsg1. Signed-off-by: Daniel Baumann --- vendor/regex/src/find_byte.rs | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) create mode 100644 vendor/regex/src/find_byte.rs (limited to 'vendor/regex/src/find_byte.rs') diff --git a/vendor/regex/src/find_byte.rs b/vendor/regex/src/find_byte.rs new file mode 100644 index 000000000..e95f72afb --- /dev/null +++ b/vendor/regex/src/find_byte.rs @@ -0,0 +1,18 @@ +/// Searches for the given needle in the given haystack. +/// +/// If the perf-literal feature is enabled, then this uses the super optimized +/// memchr crate. Otherwise, it uses the naive byte-at-a-time implementation. +pub fn find_byte(needle: u8, haystack: &[u8]) -> Option { + #[cfg(not(feature = "perf-literal"))] + fn imp(needle: u8, haystack: &[u8]) -> Option { + haystack.iter().position(|&b| b == needle) + } + + #[cfg(feature = "perf-literal")] + fn imp(needle: u8, haystack: &[u8]) -> Option { + use memchr::memchr; + memchr(needle, haystack) + } + + imp(needle, haystack) +} -- cgit v1.2.3