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std.mem: take advantage of length-based slicing

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This commit is contained in:
Andrew Kelley 2024-02-11 22:18:53 -07:00
parent b47bd031ca
commit 06d0c58305
1 changed files with 2 additions and 2 deletions
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4
lib/std/mem.zig
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@ -1338,7 +1338,7 @@ pub fn indexOf(comptime T: type, haystack: []const T, needle: []const T) ?usize
pub fn lastIndexOfLinear(comptime T: type, haystack: []const T, needle: []const T) ?usize {
var i: usize = haystack.len - needle.len;
while (true) : (i -= 1) {
if (mem.eql(T, haystack[i .. i + needle.len], needle)) return i;
if (mem.eql(T, haystack[i..][0..needle.len], needle)) return i;
if (i == 0) return null;
}
}
@ -1349,7 +1349,7 @@ pub fn indexOfPosLinear(comptime T: type, haystack: []const T, start_index: usiz
var i: usize = start_index;
const end = haystack.len - needle.len;
while (i <= end) : (i += 1) {
if (eql(T, haystack[i .. i + needle.len], needle)) return i;
if (eql(T, haystack[i..][0..needle.len], needle)) return i;
}
return null;
}