hashCodeBenchBytesOld() — netty Function Reference

Source Code

microbench/src/main/java/io/netty/microbenchmark/common/AsciiStringBenchmark.java lines 64–74

    @Benchmark
    public int hashCodeBenchBytesOld() {
        int h = 0;
        final int end = asciiString.arrayOffset() + asciiString.length();
        for (int i = asciiString.arrayOffset(); i < end; ++i) {
            // masking with 0x1F reduces the number of overall bits that impact the hash code but makes the hash
            // code the same regardless of character case (upper case or lower case hash is the same).
            h = h * 31 + (asciiString.array()[i] & 0x1F);
        }
        return h;
    }