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const std = @import("std");
const builtin = @import("builtin");
const options = @import("build_options");
extern "c" fn ghostty_simd_index_of(
needle: u8,
input: [*]const u8,
count: usize,
) usize;
pub fn indexOf(input: []const u8, needle: u8) ?usize {
if (comptime options.simd) {
const result = ghostty_simd_index_of(needle, input.ptr, input.len);
return if (result == input.len) null else result;
}
return indexOfScalar(input, needle);
}
fn indexOfScalar(input: []const u8, needle: u8) ?usize {
return std.mem.indexOfScalar(u8, input, needle);
}
test "indexOf" {
const testing = std.testing;
try testing.expect(indexOf("hello", ' ') == null);
try testing.expectEqual(@as(usize, 2), indexOf("hi lo", ' ').?);
try testing.expectEqual(@as(usize, 5), indexOf(
\\XXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
\\XXXXXXXXXXXX XXXXXXXXXXX XXXXXXXXXXXXXXX
, ' ').?);
try testing.expectEqual(@as(usize, 53), indexOf(
\\XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
\\XXXXXXXXXXXX XXXXXXXXXXX XXXXXXXXXXXXXXX
, ' ').?);
}
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