Method get

basex-core/src/main/java/org/basex/util/Num.java:80–91

Decompresses and returns a value from the specified byte array. @param array array @param pos position where the value is found @return decompressed value

(final byte[] array, final int pos)

   * @return decompressed value
   */
  public static int get(final byte[] array, final int pos) {
    int p = pos;
    final int v = array[p++] & 0xFF;
    return switch((v & 0xC0) >>> 6) {
      case 0  -> v;
      case 1  -> (v & 0x3F) << 8 | array[p] & 0xFF;
      case 2  -> (v & 0x3F) << 24 | (array[p++] & 0xFF) << 16 |
                 (array[p++] & 0xFF) << 8 | array[p] & 0xFF;
      default -> (array[p++] & 0xFF) << 24 | (array[p++] & 0xFF) << 16 |
                 (array[p++] & 0xFF) << 8 | array[p] & 0xFF;
    };
  }

  /**
   * Compresses and stores an integer value at the beginning of the byte array.