Package gnu.kawa.functions

Class Arithmetic

java.lang.Object

gnu.kawa.functions.Arithmetic

public class Arithmetic
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
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 int	REALNUM_CODE	Promotion code for gnu.math.RealNum.
static int	UINT_CODE
static int	ULONG_CODE
static int	UNKNOWN_CODE

Constructor Summary

Constructors

Constructor	Description
Arithmetic()

Method Summary

Modifier and Type	Method	Description
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(Object value)
static IntNum	asIntNum(BigDecimal value)
static IntNum	asIntNum(BigInteger value)
static long	asLong(Object value)
static Numeric	asNumeric(Object value)
static RatNum	asRatNum(Object value)
static int	classifyType(Type type)
static int	classifyValue(Object value)
static Object	convert(Object value, int code)	Coerce a number to one of the Arithmetic.XXX_CODE types.
static boolean	isExact(Number num)
static Type	kindType(int kind)
static int	leastSpecificCode(int code1, int code2)
static Number	toExact(Number num)
static Number	toInexact(Number num)
static String	toString(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

UINT_CODE

public static final int UINT_CODE

See Also:

Constant Field Values

LONG_CODE

public static final int LONG_CODE

Promotion code for long/Long.

See Also:

Constant Field Values

ULONG_CODE

public static final int ULONG_CODE

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

REALNUM_CODE

public static final int REALNUM_CODE

Promotion code for gnu.math.RealNum.

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

UNKNOWN_CODE

public static final int UNKNOWN_CODE

See Also:

Constant Field Values

Constructor Detail

Arithmetic

public Arithmetic()

Method Detail

leastSpecificCode

public static int leastSpecificCode(int code1,
                                    int code2)

classifyValue

public static int classifyValue(Object value)

kindType

public static Type kindType(int kind)

classifyType

public static int classifyType(Type type)

asInt

public static int asInt(Object value)

asLong

public static long asLong(Object value)

asFloat

public static float asFloat(Object value)

asDouble

public static double asDouble(Object value)

asBigInteger

public static BigInteger asBigInteger(Object value)

asIntNum

public static IntNum asIntNum(BigDecimal value)

asIntNum

public static IntNum asIntNum(BigInteger value)

asIntNum

public static IntNum asIntNum(Object value)

asBigDecimal

public static BigDecimal asBigDecimal(Object value)

asRatNum

public static RatNum asRatNum(Object value)

asNumeric

public static Numeric asNumeric(Object value)

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.

convert

public static Object convert(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.

isExact

public static boolean isExact(Number num)

toExact

public static Number toExact(Number num)

toInexact

public static Number toInexact(Number num)