/**
 * Annotates a program element that exists, or is more widely visible than otherwise necessary, only
 * for use in test code.
 *
 * <p><b>Do not use this interface</b> for public or protected declarations: it is a fig leaf for
 * bad design, and it does not prevent anyone from using the declaration---and experience has shown
 * that they will. If the method breaks the encapsulation of its class, then its internal

        "jp-hi - いろはにほへとちりぬるを", // x
        "jp-ka イロハニホヘト チリヌルヲワカヨタレソ ツネナラム", // x
        "iw - דג סקרן שט בים מאוכזב ולפתע מצא לו חברה איך הקליטה", // x
        "pl - Pchnąć w tę łódź jeża lub ośm skrzyń fig", // x
        "ru - Съешь же ещё этих мягких французских булок да выпей чаю", // x
        "tr - Pijamalı hasta, yağız şoföre çabucak güvendi", //
        "ch - 壾 熥獘 蟷蠉蟼 鍌鍗鍷 螒螝螜 瀷瀹藶 隒雸 腠", //
    };

/**
 * Annotates a program element that exists, or is more widely visible than otherwise necessary, only
 * for use in test code.
 *
 * <p><b>Do not use this interface</b> for public or protected declarations: it is a fig leaf for
 * bad design, and it does not prevent anyone from using the declaration---and experience has shown
 * that they will. If the method breaks the encapsulation of its class, then its internal

      default:
        throw new AssertionError();
    }
  }

  private static int log10Floor(int x) {
    /*
     * Based on Hacker's Delight Fig. 11-5, the two-table-lookup, branch-free implementation.
     *
     * The key idea is that based on the number of leading zeros (equivalently, floor(log2(x))), we

    }
    throw new AssertionError();
  }

  @GwtIncompatible // TODO
  static int log10Floor(long x) {
    /*
     * Based on Hacker's Delight Fig. 11-5, the two-table-lookup, branch-free implementation.
     *
     * The key idea is that based on the number of leading zeros (equivalently, floor(log2(x))), we

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raving mad--at least not so mad as it was in March.'  As she said
this, she looked up, and there was the Cat again, sitting on a
branch of a tree.

  `Did you say pig, or fig?' said the Cat.

  `I said pig,' replied Alice; `and I wish you wouldn't keep
appearing and vanishing so suddenly:  you make one quite giddy.'

  `All right,' said the Cat; and this time it vanished quite slowly,

raving mad--at least not so mad as it was in March.'  As she said
this, she looked up, and there was the Cat again, sitting on a
branch of a tree.

  `Did you say pig, or fig?' said the Cat.

  `I said pig,' replied Alice; `and I wish you wouldn't keep
appearing and vanishing so suddenly:  you make one quite giddy.'

  `All right,' said the Cat; and this time it vanished quite slowly,