static void nextBytesFill()

in commons-rng-core/src/main/java/org/apache/commons/rng/core/source32/IntProvider.java [158:191]

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

    static void nextBytesFill(RandomIntSource source,
                              byte[] bytes,
                              int start,
                              int len) {
        int index = start; // Index of first insertion.

        // Index of first insertion plus multiple of 4 part of length
        // (i.e. length with 2 least significant bits unset).
        final int indexLoopLimit = index + (len & 0x7ffffffc);

        // Start filling in the byte array, 4 bytes at a time.
        while (index < indexLoopLimit) {
            final int random = source.next();
            bytes[index++] = (byte) random;
            bytes[index++] = (byte) (random >>> 8);
            bytes[index++] = (byte) (random >>> 16);
            bytes[index++] = (byte) (random >>> 24);
        }

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

        // Fill in the remaining bytes.
        if (index < indexLimit) {
            int random = source.next();
            while (true) {
                bytes[index++] = (byte) random;
                if (index < indexLimit) {
                    random >>>= 8;
                } else {
                    break;
                }
            }
        }
    }