minwin-gcc-5-2/libjava/classpath/java/math/RoundingMode.java

/* RoundingMode.java -- An Enum to replace BigDecimal rounding constants.
   Copyright (C) 1999, 2000, 2002, 2004, 2005  Free Software Foundation, Inc.

This file is part of GNU Classpath.

GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
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any later version.

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WITHOUT ANY WARRANTY; without even the implied warranty of
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General Public License for more details.

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02110-1301 USA.

Linking this library statically or dynamically with other modules is
making a combined work based on this library.  Thus, the terms and
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As a special exception, the copyright holders of this library give you
permission to link this library with independent modules to produce an
executable, regardless of the license terms of these independent
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exception statement from your version. */


package java.math;

/**
 * An enum to specify rounding behaviour for numerical operations that may
 * discard precision.
 * @author Anthony Balkissoon abalkiss at redhat dot com
 *
 */
public enum RoundingMode
{
  UP, DOWN, CEILING, FLOOR, HALF_UP, HALF_DOWN, HALF_EVEN, UNNECESSARY;

  /**
   * For compatability with Sun's JDK
   */
  private static final long serialVersionUID = 432302042773881265L;

  /**
   * Returns the RoundingMode object corresponding to the legacy rounding modes
   * in BigDecimal.
   * @param rm the legacy rounding mode
   * @return the corresponding RoundingMode
   */
  public static RoundingMode valueOf(int rm)
  {
    switch (rm)
      {
      case BigDecimal.ROUND_CEILING:
        return CEILING;
      case BigDecimal.ROUND_FLOOR:
        return FLOOR;
      case BigDecimal.ROUND_DOWN:
        return DOWN;
      case BigDecimal.ROUND_UP:
        return UP;
      case BigDecimal.ROUND_HALF_UP:
        return HALF_UP;
      case BigDecimal.ROUND_HALF_DOWN:
        return HALF_DOWN;
      case BigDecimal.ROUND_HALF_EVEN:
        return HALF_EVEN;
      case BigDecimal.ROUND_UNNECESSARY:
        return UNNECESSARY;
      default:
        throw new
          IllegalArgumentException("invalid argument: " + rm +
                                   ".  Argument should be one of the " +
                                   "rounding modes defined in BigDecimal.");
      }
  }
}