public void update()

in src/main/java/org/apache/commons/codec/digest/XXHash32.java [93:131]

29 lines of code
6 McCabe index (conditional complexity)


    public void update(final byte[] b, int off, final int len) {
        if (len <= 0) {
            return;
        }
        totalLen += len;

        final int end = off + len;

        // Check if the unprocessed bytes and new bytes can fill a block of 16.
        // Make this overflow safe in the event that len is Integer.MAX_VALUE.
        // Equivalent to: (pos + len < BUF_SIZE)
        if (pos + len - BUF_SIZE < 0) {
            System.arraycopy(b, off, buffer, pos, len);
            pos += len;
            return;
        }

        // Process left-over bytes with new bytes
        if (pos > 0) {
            final int size = BUF_SIZE - pos;
            System.arraycopy(b, off, buffer, pos, size);
            process(buffer, 0);
            off += size;
        }

        final int limit = end - BUF_SIZE;
        while (off <= limit) {
            process(b, off);
            off += BUF_SIZE;
        }

        // Handle left-over bytes
        if (off < end) {
            pos = end - off;
            System.arraycopy(b, off, buffer, 0, pos);
        } else {
            pos = 0;
        }
    }