static void nextBytes()

in commons-rng-client-api/src/main/java/org/apache/commons/rng/UniformRandomProviderSupport.java [214:248]

• 27 lines of code
• 5 McCabe index (conditional complexity)

    static void nextBytes(UniformRandomProvider source,
                          byte[] bytes, int start, int len) {
        // Index of first insertion plus multiple of 8 part of length
        // (i.e. length with 3 least significant bits unset).
        final int indexLoopLimit = start + (len & 0x7ffffff8);

        // Start filling in the byte array, 8 bytes at a time.
        int index = start;
        while (index < indexLoopLimit) {
            final long random = source.nextLong();
            bytes[index++] = (byte) random;
            bytes[index++] = (byte) (random >>> 8);
            bytes[index++] = (byte) (random >>> 16);
            bytes[index++] = (byte) (random >>> 24);
            bytes[index++] = (byte) (random >>> 32);
            bytes[index++] = (byte) (random >>> 40);
            bytes[index++] = (byte) (random >>> 48);
            bytes[index++] = (byte) (random >>> 56);
        }

        // Index of last insertion + 1
        final int indexLimit = start + len;

        // Fill in the remaining bytes.
        if (index < indexLimit) {
            long random = source.nextLong();
            for (;;) {
                bytes[index++] = (byte) random;
                if (index == indexLimit) {
                    break;
                }
                random >>>= 8;
            }
        }
    }