ieee754constants.java

来自「一个一元曲线多项式数值演示例子」· Java 代码 · 共 24 行

package numbercruncher.mathutils;

/**
 * Constants related to the IEEE 754 standard.
 */
public interface IEEE754Constants {
  static final int FLOAT_SIGN_INDEX = 0;
  static final int FLOAT_SIGN_SIZE = 1;
  static final int FLOAT_EXPONENT_INDEX = 1;
  static final int FLOAT_EXPONENT_SIZE = 8;
  static final int FLOAT_EXPONENT_RESERVED = 255;
  static final int FLOAT_EXPONENT_BIAS = 127;
  static final int FLOAT_FRACTION_INDEX = 9;
  static final int FLOAT_FRACTION_SIZE = 23;

  static final int DOUBLE_SIGN_INDEX = 0;
  static final int DOUBLE_SIGN_SIZE = 1;
  static final int DOUBLE_EXPONENT_INDEX = 1;
  static final int DOUBLE_EXPONENT_SIZE = 11;
  static final int DOUBLE_EXPONENT_RESERVED = 2047;
  static final int DOUBLE_EXPONENT_BIAS = 1023;
  static final int DOUBLE_FRACTION_INDEX = 12;
  static final int DOUBLE_FRACTION_SIZE = 52;
}