Method isPowerOfTwo

output/java_guava/1.4.19/DoubleMath.java:193–196

Returns true if x is exactly equal to 2^k for some finite integer k.

(double x)

   */

  @GwtIncompatible // com.google.common.math.DoubleUtils
  public static boolean isPowerOfTwo(double x) {
    return x > 0.0 && isFinite(x) && LongMath.isPowerOfTwo(getSignificand(x));
  }

  /**
   * Returns the base 2 logarithm of a double value.