gnu.kawa.functions

Class Arithmetic

public class Arithmetic extends Object

Various utility methods and conversions for handling mixed-mode arithmetic. This should possibly be moved to gnu.math.

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	INTNUM_CODE Promotion code for gnu.math.IntNum.
static int	INT_CODE Promotion code for byte/Byte, short/Short, int/Integer.
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

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

Field Detail

BIGDECIMAL_CODE

public static final int BIGDECIMAL_CODE

Promotion code for java.math.BigDecimal.

BIGINTEGER_CODE

public static final int BIGINTEGER_CODE

Promotion code for java.math.BigInteger.

DOUBLE_CODE

public static final int DOUBLE_CODE

Promotion code double/Double.

FLOAT_CODE

public static final int FLOAT_CODE

Promotion code float/Float.

FLONUM_CODE

public static final int FLONUM_CODE

Promotion code for gnu.math.FloNum.

INTNUM_CODE

public static final int INTNUM_CODE

Promotion code for gnu.math.IntNum.

INT_CODE

public static final int INT_CODE

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

LONG_CODE

public static final int LONG_CODE

Promotion code for long/Long.

NUMERIC_CODE

public static final int NUMERIC_CODE

Promotion code for other gnu.math.Numeric.

RATNUM_CODE

public static final int RATNUM_CODE

Promotion code for gnu.math.RatNum.

ten_exp_9

public static final IntNum ten_exp_9

Method Detail

asBigDecimal

public static BigDecimal asBigDecimal(Object value)

asBigInteger

public static BigInteger asBigInteger(Object value)

asDouble

public static double asDouble(Object value)

asFloat

public static float asFloat(Object value)

asInt

public static int asInt(Object value)

asIntNum

public static IntNum asIntNum(BigDecimal value)

asIntNum

public static IntNum asIntNum(BigInteger value)

asIntNum

public static IntNum asIntNum(Object value)

asLong

public static long asLong(Object value)

asNumeric

public static Numeric asNumeric(Object value)

asRatNum

public static RatNum asRatNum(Object value)

classifyValue

public static int classifyValue(Object value)

convert

public static Object convert(Object value, int code)

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

toString

public static String toString(Object number, int radix)

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