gnu.kawa.functions
Class Arithmetic

java.lang.Object
  gnu.kawa.functions.Arithmetic

public class Arithmetic
extends java.lang.Object

Field Summary

static int	BIGDECIMAL_CODE Promotion code for java.math.BigDecimal.
static int	BIGINTEGER_CODE Promotion code for java.math.BigInteger.
static int	DOUBLE_CODE Promotion code double/Double.
static int	FLOAT_CODE Promotion code float/Float.
static int	FLONUM_CODE Promotion code for gnu.math.FloNum.
static int	INT_CODE Promotion code for byte/Byte, short/Short, int/Integer.
static int	INTNUM_CODE Promotion code for gnu.math.IntNum.
static int	LONG_CODE Promotion code for long/Long.
static int	NUMERIC_CODE Promotion code for other gnu.math.Numeric.
static int	RATNUM_CODE Promotion code for gnu.math.RatNum.
static IntNum	ten_exp_9

Constructor Summary

Arithmetic()

Method Summary

static java.math.BigDecimal	asBigDecimal(java.lang.Object value)
static java.math.BigInteger	asBigInteger(java.lang.Object value)
static double	asDouble(java.lang.Object value)
static float	asFloat(java.lang.Object value)
static int	asInt(java.lang.Object value)
static IntNum	asIntNum(java.math.BigDecimal value)
static IntNum	asIntNum(java.math.BigInteger value)
static IntNum	asIntNum(java.lang.Object value)
static long	asLong(java.lang.Object value)
static Numeric	asNumeric(java.lang.Object value)
static RatNum	asRatNum(java.lang.Object value)
static int	classifyValue(java.lang.Object value)
static java.lang.Object	convert(java.lang.Object value, int code) Coerce a number to one of the Arithmetic.XXX_CODE types.
static java.lang.String	toString(java.lang.Object number, int radix) Convert a number to a String.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

INT_CODE

public static final int INT_CODE

Promotion code for byte/Byte, short/Short, int/Integer.

See Also:

Constant Field Values

LONG_CODE

public static final int LONG_CODE

Promotion code for long/Long.

See Also:

Constant Field Values

BIGINTEGER_CODE

public static final int BIGINTEGER_CODE

Promotion code for java.math.BigInteger.

See Also:

Constant Field Values

INTNUM_CODE

public static final int INTNUM_CODE

Promotion code for gnu.math.IntNum.

See Also:

Constant Field Values

BIGDECIMAL_CODE

public static final int BIGDECIMAL_CODE

Promotion code for java.math.BigDecimal.

See Also:

Constant Field Values

RATNUM_CODE

public static final int RATNUM_CODE

Promotion code for gnu.math.RatNum.

See Also:

Constant Field Values

FLOAT_CODE

public static final int FLOAT_CODE

Promotion code float/Float.

See Also:

Constant Field Values

DOUBLE_CODE

public static final int DOUBLE_CODE

Promotion code double/Double.

See Also:

Constant Field Values

FLONUM_CODE

public static final int FLONUM_CODE

Promotion code for gnu.math.FloNum.

See Also:

Constant Field Values

NUMERIC_CODE

public static final int NUMERIC_CODE

Promotion code for other gnu.math.Numeric.

See Also:

Constant Field Values

ten_exp_9

public static final IntNum ten_exp_9

Constructor Detail

Arithmetic

public Arithmetic()

Method Detail

classifyValue

public static int classifyValue(java.lang.Object value)

asInt

public static int asInt(java.lang.Object value)

asLong

public static long asLong(java.lang.Object value)

asFloat

public static float asFloat(java.lang.Object value)

asDouble

public static double asDouble(java.lang.Object value)

asBigInteger

public static java.math.BigInteger asBigInteger(java.lang.Object value)

asIntNum

public static IntNum asIntNum(java.math.BigDecimal value)

asIntNum

public static IntNum asIntNum(java.math.BigInteger value)

asIntNum

public static IntNum asIntNum(java.lang.Object value)

asBigDecimal

public static java.math.BigDecimal asBigDecimal(java.lang.Object value)

asRatNum

public static RatNum asRatNum(java.lang.Object value)

asNumeric

public static Numeric asNumeric(java.lang.Object value)

toString

public static java.lang.String toString(java.lang.Object number,
                                        int radix)

Convert a number to a String. Handles classes subclasses of gnu.math.Numeric as well as standard Java classes.

convert

public static java.lang.Object convert(java.lang.Object value,
                                       int code)

Coerce a number to one of the Arithmetic.XXX_CODE types. Assumes > Arithmetic.classifyValue(value), though the converse might also work.