Package org.jruby

Class RubyFloat

java.lang.Object

org.jruby.RubyBasicObject

org.jruby.RubyObject

org.jruby.RubyNumeric

org.jruby.RubyFloat

All Implemented Interfaces:

Serializable, Cloneable, Comparable<IRubyObject>, InstanceVariables, InternalVariables, IRubyObject, CoreObjectType

public class RubyFloat
extends RubyNumeric

A representation of a float object

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.jruby.RubyNumeric

RubyNumeric.InvalidIntegerException, RubyNumeric.NumberTooLargeException

Nested classes/interfaces inherited from class org.jruby.RubyObject

RubyObject.Data

Nested classes/interfaces inherited from class org.jruby.RubyBasicObject

RubyBasicObject.Finalizer

Field Summary

Fields

Modifier and Type	Field	Description
(package private) static final int	DBL_MANT_DIG	float_to_r, float_decode
static final int	DIG
static final double	EPSILON
static final int	FLOAT_DIG
static final double	INFINITY
private static final ByteList	INFINITY_BYTELIST
static final int	MANT_DIG
static final int	MAX_10_EXP
static final int	MAX_EXP
static final int	MIN_10_EXP
static final int	MIN_EXP
static final double	NAN
private static final ByteList	NAN_BYTELIST
private static final ByteList	NEGATIVE_INFINITY_BYTELIST
static final int	RADIX
static final int	ROUNDS
(package private) final double	value

Fields inherited from class org.jruby.RubyNumeric

DBL_EPSILON

Fields inherited from class org.jruby.RubyObject

IVAR_INSPECTING_OBJECT_ALLOCATOR, OBJECT_ALLOCATOR, REIFYING_OBJECT_ALLOCATOR

Fields inherited from class org.jruby.RubyBasicObject

ALL_F, BASICOBJECT_ALLOCATOR, COMPARE_BY_IDENTITY_F, ERR_INSECURE_SET_INST_VAR, FALSE_F, FL_USHIFT, flags, FROZEN_F, IS_OVERLAID_F, metaClass, NEVER, NIL_F, REFINED_MODULE_F, STAMP_OFFSET, TAINTED_F, UNDEF, UNTRUST_F, USER0_F, USER1_F, USER2_F, USER3_F, USER4_F, USER5_F, USER6_F, USER7_F, USER8_F, USER9_F, USERA_F, VAR_TABLE_OFFSET, varTable, varTableStamp

Fields inherited from interface org.jruby.runtime.builtin.IRubyObject

NULL_ARRAY

Constructor Summary

Constructors

Modifier	Constructor	Description
	RubyFloat(Ruby runtime)
private	RubyFloat(RubyClass klass, double value)
	RubyFloat(Ruby runtime, double value)

Method Summary

Modifier and Type	Method	Description
IRubyObject	abs(ThreadContext context)	flo_abs
IRubyObject	ceil(ThreadContext context)	MRI: flo_ceil
IRubyObject	ceil(ThreadContext context, IRubyObject digits)	MRI: flo_ceil
IRubyObject	coerce(IRubyObject other)	flo_coerce
final int	compareTo(IRubyObject other)	Compares this Ruby object with another.
RubyFloat	convertToFloat()	Tries to convert this object to a Ruby Float using the "to_f" method.
RubyInteger	convertToInteger()	Tries to convert this object to a Ruby Integer using the "to_int" method.
static RubyClass	createFloatClass(Ruby runtime)
IRubyObject	denominator(ThreadContext context)	flo_denominator
IRubyObject	divmod(ThreadContext context, IRubyObject other)	flo_divmod
private static double	doRound(ThreadContext context, RoundingMode roundingMode, double number, double scale)
final boolean	eql(IRubyObject other)	short circuit for Float key comparison
IRubyObject	eql_p(IRubyObject other)	flo_eql
IRubyObject	equal_p(ThreadContext context, IRubyObject obj)	Compare this Float object with the given object and determine whether they are effectively identical.
boolean	equals(Object other)	This override does not do a "checked" dispatch.
private boolean	equals(RubyFloat that)
boolean	fastEqual(RubyFloat other)
IRubyObject	finite_p()	flo_is_finite_p
private static long	floatHash(Ruby runtime, double value)
private static boolean	floatRoundOverflow(int ndigits, long[] binexp)
private static boolean	floatRoundUnderflow(int ndigits, long[] binexp)
private static boolean	flonumable(double value)	Determine if the given double value is representable as a "flonum", a bit-manipulated version of itself that emulates the CRuby "flonum" tagged pointer.
private static boolean	flonumRange(long longBits)	Determine if the given double bits are in the "flonum" range, excluding positive zero.
IRubyObject	floor(ThreadContext context)	MRI: flo_floor
IRubyObject	floor(ThreadContext context, IRubyObject digits)	MRI: flo_floor
IRubyObject	floor(ThreadContext context, IRubyObject[] args)	Deprecated.
BigInteger	getBigIntegerValue()
double	getDoubleValue()
int	getIntValue()	Return the value of this numeric as a 32-bit long.
Class<?>	getJavaClass()	Will return the Java interface that most closely can represent this object, when working through Java integration translations.
long	getLongValue()	Return the value of this numeric as a 64-bit long.
ClassIndex	getNativeClassIndex()	This is overridden in the other concrete Java builtins to provide a fast way to determine what type they are.
RubyClass	getSingletonClass()	rb_singleton_class Note: this method is specialized for RubyFixnum, RubySymbol, RubyNil and RubyBoolean Will either return the existing singleton class for this object, or create a new one and return that.
double	getValue()	Getter for property value.
RubyFixnum	hash()	flo_hash
final int	hashCode()	This override does not do "checked" dispatch since Object usually has #hash defined.
IRubyObject	id()	Produce an object ID for this Float.
static IRubyObject	induced_from(ThreadContext context, IRubyObject recv, IRubyObject number)	Deprecated.
IRubyObject	infinite_p()	flo_is_infinite_p
boolean	isInfinite()
boolean	isNaN()
boolean	isNegative()
IRubyObject	isNegative(ThreadContext context)	num_negative_p
boolean	isPositive()
IRubyObject	isPositive(ThreadContext context)	num_positive_p
final boolean	isZero()
IRubyObject	magnitude(ThreadContext context)	flo_abs/1.9
private ByteList	marshalDump()
static void	marshalTo(RubyFloat aFloat, MarshalStream output)
IRubyObject	nan_p()	flo_is_nan_p
static RubyFloat	newFloat(Ruby runtime, double value)
IRubyObject	next_float()
IRubyObject	nonzero_p(ThreadContext context)	num_nonzero_p
IRubyObject	numerator(ThreadContext context)	flo_numerator
IRubyObject	op_cmp(ThreadContext context, double other)
IRubyObject	op_cmp(ThreadContext context, IRubyObject other)	flo_cmp
IRubyObject	op_div(ThreadContext context, double other)
IRubyObject	op_div(ThreadContext context, IRubyObject other)	MRI: flo_div
IRubyObject	op_equal(ThreadContext context, double other)
IRubyObject	op_equal(ThreadContext context, IRubyObject other)	flo_eq
IRubyObject	op_ge(ThreadContext context, double other)
IRubyObject	op_ge(ThreadContext context, IRubyObject other)	flo_ge
IRubyObject	op_gt(ThreadContext context, double other)
IRubyObject	op_gt(ThreadContext context, IRubyObject other)	flo_gt
IRubyObject	op_le(ThreadContext context, double other)
IRubyObject	op_le(ThreadContext context, IRubyObject other)	flo_le
IRubyObject	op_lt(ThreadContext context, double other)
IRubyObject	op_lt(ThreadContext context, IRubyObject other)	flo_lt
IRubyObject	op_minus(ThreadContext context, double other)
IRubyObject	op_minus(ThreadContext context, IRubyObject other)	flo_minus
IRubyObject	op_mod(ThreadContext context, double other)
IRubyObject	op_mod(ThreadContext context, IRubyObject other)	flo_mod
final IRubyObject	op_mod19(ThreadContext context, IRubyObject other)	Deprecated.
IRubyObject	op_mul(ThreadContext context, double other)
IRubyObject	op_mul(ThreadContext context, IRubyObject other)	flo_mul
IRubyObject	op_plus(ThreadContext context, double other)
IRubyObject	op_plus(ThreadContext context, IRubyObject other)	flo_plus
IRubyObject	op_pow(ThreadContext context, double other)
IRubyObject	op_pow(ThreadContext context, IRubyObject other)	flo_pow
IRubyObject	op_pow19(ThreadContext context, IRubyObject other)	Deprecated.
IRubyObject	op_uminus()	Deprecated.
IRubyObject	op_uminus(ThreadContext context)	flo_uminus
private static boolean	positiveZero(long longBits)	Determine of the given double bits represent positive zero.
IRubyObject	prev_float()
IRubyObject	quo(ThreadContext context, IRubyObject other)	flo_quo
IRubyObject	rationalize(ThreadContext context, IRubyObject[] args)	float_rationalize
IRubyObject	round(ThreadContext context)	MRI: flo_round
IRubyObject	round(ThreadContext context, IRubyObject arg0)	MRI: flo_round
IRubyObject	round(ThreadContext context, IRubyObject[] args)	Deprecated.
IRubyObject	round(ThreadContext context, IRubyObject _digits, IRubyObject _opts)	MRI: flo_round
private static double	roundHalfDown(double x, double s)
private static double	roundHalfEven(double x, double s)
private static double	roundHalfUp(double n)
private static double	roundHalfUp(double x, double s)
IRubyObject	roundShared(ThreadContext context, int ndigits, RoundingMode mode)
int	signum()
private static JavaSites.FloatSites	sites(ThreadContext context)
IRubyObject	to_f()	flo_fo
IRubyObject	to_r(ThreadContext context)
IRubyObject	to_s()	flo_to_s
private RubyInteger	toInteger(Ruby runtime)
IRubyObject	truncate(ThreadContext context)	MRI: flo_truncate
IRubyObject	truncate(ThreadContext context, IRubyObject n)	MRI: flo_truncate
static RubyFloat	unmarshalFrom(UnmarshalStream input)
IRubyObject	zero_p()	Deprecated.
IRubyObject	zero_p(ThreadContext context)	MRI: flo_zero_p

Methods inherited from class org.jruby.RubyNumeric

abs2, arg, asNumeric, callCoerced, callCoerced, callCoerced, callCoerced, ceil, checkInt, checkInt, coerceBin, coerceBin, coerceBit, coerceBit, coerceBody, coerceCmp, coerceCmp, coerceFailed, coerceRelOp, coerceRelOp, coerceRescue, compareWithZero, conjugate, convertToRational, createNumericClass, dbl_cmp, dbl2ival, dbl2num, div, div19, divmod19, doCoerce, dup, eql_p, fdiv, finite_p, fix2int, fix2int, fix2long, fixable, float2long, float2ulong, floatStep, floatStep, floatStepSize, floor, getCoerced, getRoundingMode, idiv, idiv, image, infinite_p, initialize_copy, int2fix, integer_p, intervalStepSize, isReal, modulo, modulo, modulo19, negativeInt, negFixable, negFixable, newNumeric, num_imaginary, num2chr, num2dbl, num2dbl, num2fix, num2int, num2long, num2ulong, numFuncall, numFuncall, numRemainder, op_cmp, op_not, op_num_equal, op_uplus, polar, posFixable, posFixable, positiveInt, quo_19, rbClone, rbClone, rbClone, rbClone, real, real_p, rect, remainder, round, scalar_p, singleton_method_added, step, str2fnum, str2fnum, str2fnum, str2fnum19, str2inum, str2inum, str2inum, to_c, to_int, toJava, truncate

Methods inherited from class org.jruby.RubyObject

attachToObjectSpace, callInit, callInit, callInit, callInit, callInit, callInit, callInit, callInit, callInit, callInit, convertToType, createObjectClass, dig, dig1, dig2, eqlInternal, equalInternal, inspect, op_eqq, puts, specificEval, toRubyString, toString

Methods inherited from class org.jruby.RubyBasicObject

addFinalizer, anyToString, asJavaString, asString, callMethod, callMethod, callMethod, callMethod, callMethod, callMethod, callMethod, callMethod, callMethod, callSuper, checkArrayType, checkCallMethod, checkCallMethod, checkFrozen, checkStringType, checkStringType19, convertToArray, convertToHash, convertToInteger, convertToInteger, convertToString, copyInstanceVariablesInto, copySpecialInstanceVariables, createBasicObjectClass, dataGetStruct, dataGetStructChecked, dataWrapStruct, decode, defaultToJava, display, ensureInstanceVariablesSettable, equal_p19, evalUnder, extend, fastGetInstanceVariable, fastGetInternalVariable, fastHasInstanceVariable, fastHasInternalVariable, fastSetInstanceVariable, fastSetInternalVariable, freeze, frozen_p, getFFIHandle, getFlag, getInstanceEvalClass, getInstanceVariable, getInstanceVariableList, getInstanceVariableNameList, getInstanceVariables, getInternalVariable, getInternalVariables, getMetaClass, getMetaClass, getNativeHandle, getNativeTypeIndex, getObjectId, getRuntime, getSingletonClassClone, getSingletonClassCloneAndAttach, getType, getVariable, getVariableCount, getVariableList, getVariableNameList, hashyInspect, hasInstanceVariable, hasInstanceVariables, hasInternalVariable, hasVariables, infectBy, infectBy, infectBy, initialize, initialize19, inspect, inspectHashCode, instance_eval, instance_eval, instance_eval, instance_eval, instance_eval19, instance_eval19, instance_eval19, instance_eval19, instance_exec, instance_exec19, instance_of_p, instance_variable_defined_p, instance_variable_get, instance_variable_set, instance_variables, instance_variables19, isBuiltin, isClass, isFalse, isFrozen, isImmediate, isModule, isNil, isSpecialConst, isSpecialObject, isTaint, isTrue, isUntrusted, kind_of_p, makeMetaClass, method, method_missing, method_missing19, method19, methods, methods, methods19, methodsImpl, nil_p, nonFixnumHashCode, OBJ_INIT_COPY, objInitCopy, op_equal_19, op_match, op_match19, op_not_equal, op_not_match, private_methods, private_methods19, protected_methods, protected_methods19, public_methods, public_methods19, rbInspect, recacheBuiltinMethods, remove_instance_variable, removeFinalizers, removeInstanceVariable, removeInternalVariable, respond_to_p, respond_to_p, respond_to_p, respond_to_p19, respond_to_p19, respondsTo, respondsToMissing, respondsToMissing, send, send, send, send, send, send19, send19, send19, send19, setFFIHandle, setFlag, setFrozen, setInstanceVariable, setInternalVariable, setMetaClass, setNativeHandle, setTaint, setUntrusted, setVariable, singleton_method, singleton_method_added, singleton_method_added19, singleton_method_removed, singleton_method_removed19, singleton_method_undefined, singleton_method_undefined19, singleton_methods, specificEval, specificEval, specificEval, specificEval, syncVariables, syncVariables, taint, taint, tainted, tainted_p, testFrozen, testFrozen, to_a, to_a, trust, type, type_deprecated, untaint, untrust, untrusted_p, validateInstanceVariable, validateInstanceVariable, validateInstanceVariable, variableTableContains, variableTableFastContains, variableTableFastFetch, variableTableFastStore, variableTableFetch, variableTableRemove, variableTableStore, variableTableSync, yieldUnder, yieldUnder

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Details

ROUNDS

public static final int ROUNDS

See Also:

• Constant Field Values

RADIX

public static final int RADIX

See Also:

• Constant Field Values

MANT_DIG

public static final int MANT_DIG

See Also:

• Constant Field Values

DIG

public static final int DIG

See Also:

• Constant Field Values

MIN_EXP

public static final int MIN_EXP

See Also:

• Constant Field Values

MAX_EXP

public static final int MAX_EXP

See Also:

• Constant Field Values

MAX_10_EXP

public static final int MAX_10_EXP

See Also:

• Constant Field Values

MIN_10_EXP

public static final int MIN_10_EXP

See Also:

• Constant Field Values

EPSILON

public static final double EPSILON

See Also:

• Constant Field Values

INFINITY

public static final double INFINITY

See Also:

• Constant Field Values

NAN

public static final double NAN

See Also:

• Constant Field Values

FLOAT_DIG

public static final int FLOAT_DIG

See Also:

• Constant Field Values

value

final double value

DBL_MANT_DIG

static final int DBL_MANT_DIG

float_to_r, float_decode

See Also:

• Constant Field Values

NAN_BYTELIST

private static final ByteList NAN_BYTELIST

NEGATIVE_INFINITY_BYTELIST

private static final ByteList NEGATIVE_INFINITY_BYTELIST

INFINITY_BYTELIST

private static final ByteList INFINITY_BYTELIST

Constructor Details

RubyFloat

public RubyFloat(Ruby runtime)

RubyFloat

public RubyFloat(Ruby runtime,
 double value)

RubyFloat

private RubyFloat(RubyClass klass,
 double value)

Method Details

createFloatClass

public static RubyClass createFloatClass(Ruby runtime)

getNativeClassIndex

public ClassIndex getNativeClassIndex()

Description copied from class: RubyObject

This is overridden in the other concrete Java builtins to provide a fast way to determine what type they are. Will generally return a value from org.jruby.runtime.ClassIndex

Specified by:

getNativeClassIndex in interface CoreObjectType

Overrides:

getNativeClassIndex in class RubyObject

See Also:

• ClassIndex

getSingletonClass

public RubyClass getSingletonClass()

Description copied from class: RubyBasicObject

rb_singleton_class Note: this method is specialized for RubyFixnum, RubySymbol, RubyNil and RubyBoolean Will either return the existing singleton class for this object, or create a new one and return that.

Specified by:

getSingletonClass in interface IRubyObject

Overrides:

getSingletonClass in class RubyBasicObject

Returns:

the Ruby singleton class

getJavaClass

public Class<?> getJavaClass()

Description copied from class: RubyBasicObject

Will return the Java interface that most closely can represent this object, when working through Java integration translations.

Specified by:

getJavaClass in interface IRubyObject

Overrides:

getJavaClass in class RubyBasicObject

Returns:

the true Java class of this (Ruby) object

getValue

public double getValue()

Getter for property value.

Returns:

Value of property value.

getDoubleValue

public double getDoubleValue()

Overrides:

getDoubleValue in class RubyNumeric

getLongValue

public long getLongValue()

Description copied from class: RubyNumeric

Return the value of this numeric as a 64-bit long. If the value does not fit in 64 bits, it will be truncated.

Overrides:

getLongValue in class RubyNumeric

getIntValue

public int getIntValue()

Description copied from class: RubyNumeric

Return the value of this numeric as a 32-bit long. If the value does not fit in 32 bits, it will be truncated.

Overrides:

getIntValue in class RubyNumeric

getBigIntegerValue

public BigInteger getBigIntegerValue()

Overrides:

getBigIntegerValue in class RubyNumeric

convertToFloat

public RubyFloat convertToFloat()

Description copied from class: RubyBasicObject

Tries to convert this object to a Ruby Float using the "to_f" method.

Specified by:

convertToFloat in interface IRubyObject

Overrides:

convertToFloat in class RubyBasicObject

Returns:

float representation of this

convertToInteger

public RubyInteger convertToInteger()

Description copied from class: RubyBasicObject

Tries to convert this object to a Ruby Integer using the "to_int" method.

Specified by:

convertToInteger in interface IRubyObject

Overrides:

convertToInteger in class RubyBasicObject

Returns:

an integer representation of this

toInteger

private RubyInteger toInteger(Ruby runtime)

signum

public int signum()

isNegative

public IRubyObject isNegative(ThreadContext context)

Description copied from class: RubyNumeric

num_negative_p

Overrides:

isNegative in class RubyNumeric

isPositive

public IRubyObject isPositive(ThreadContext context)

Description copied from class: RubyNumeric

num_positive_p

Overrides:

isPositive in class RubyNumeric

isNegative

public boolean isNegative()

Overrides:

isNegative in class RubyNumeric

isPositive

public boolean isPositive()

Overrides:

isPositive in class RubyNumeric

newFloat

public static RubyFloat newFloat(Ruby runtime,
 double value)

induced_from

@Deprecated
public static IRubyObject induced_from(ThreadContext context,
 IRubyObject recv,
 IRubyObject number)

Deprecated.

rb_flo_induced_from

to_s

public IRubyObject to_s()

flo_to_s

Overrides:

to_s in class RubyBasicObject

coerce

public IRubyObject coerce(IRubyObject other)

flo_coerce

Overrides:

coerce in class RubyNumeric

op_uminus

public IRubyObject op_uminus(ThreadContext context)

flo_uminus

Overrides:

op_uminus in class RubyNumeric

op_uminus

@Deprecated
public IRubyObject op_uminus()

Deprecated.

op_plus

public IRubyObject op_plus(ThreadContext context,
 IRubyObject other)

flo_plus

Overrides:

op_plus in class RubyNumeric

op_plus

public IRubyObject op_plus(ThreadContext context,
 double other)

op_minus

public IRubyObject op_minus(ThreadContext context,
 IRubyObject other)

flo_minus

Overrides:

op_minus in class RubyNumeric

op_minus

public IRubyObject op_minus(ThreadContext context,
 double other)

op_mul

public IRubyObject op_mul(ThreadContext context,
 IRubyObject other)

flo_mul

op_mul

public IRubyObject op_mul(ThreadContext context,
 double other)

op_div

public IRubyObject op_div(ThreadContext context,
 IRubyObject other)

MRI: flo_div

op_div

public IRubyObject op_div(ThreadContext context,
 double other)

quo

public IRubyObject quo(ThreadContext context,
 IRubyObject other)

flo_quo

Overrides:

quo in class RubyNumeric

op_mod

public IRubyObject op_mod(ThreadContext context,
 IRubyObject other)

flo_mod

op_mod

public IRubyObject op_mod(ThreadContext context,
 double other)

op_mod19

@Deprecated
public final IRubyObject op_mod19(ThreadContext context,
 IRubyObject other)

Deprecated.

divmod

public IRubyObject divmod(ThreadContext context,
 IRubyObject other)

flo_divmod

Overrides:

divmod in class RubyNumeric

op_pow

public IRubyObject op_pow(ThreadContext context,
 IRubyObject other)

flo_pow

op_pow

public IRubyObject op_pow(ThreadContext context,
 double other)

op_pow19

@Deprecated
public IRubyObject op_pow19(ThreadContext context,
 IRubyObject other)

Deprecated.

op_equal

public IRubyObject op_equal(ThreadContext context,
 IRubyObject other)

flo_eq

Specified by:

op_equal in interface IRubyObject

Overrides:

op_equal in class RubyBasicObject

op_equal

public IRubyObject op_equal(ThreadContext context,
 double other)

fastEqual

public boolean fastEqual(RubyFloat other)

compareTo

public final int compareTo(IRubyObject other)

Description copied from class: RubyBasicObject

Compares this Ruby object with another.

Specified by:

compareTo in interface Comparable<IRubyObject>

Overrides:

compareTo in class RubyBasicObject

Parameters:

other - another IRubyObject

Returns:

0 if equal, < 0 if this is less than other, > 0 if this is greater than other

op_cmp

public IRubyObject op_cmp(ThreadContext context,
 IRubyObject other)

flo_cmp

Overrides:

op_cmp in class RubyBasicObject

op_cmp

public IRubyObject op_cmp(ThreadContext context,
 double other)

op_gt

public IRubyObject op_gt(ThreadContext context,
 IRubyObject other)

flo_gt

op_gt

public IRubyObject op_gt(ThreadContext context,
 double other)

op_ge

public IRubyObject op_ge(ThreadContext context,
 IRubyObject other)

flo_ge

op_ge

public IRubyObject op_ge(ThreadContext context,
 double other)

op_lt

public IRubyObject op_lt(ThreadContext context,
 IRubyObject other)

flo_lt

op_lt

public IRubyObject op_lt(ThreadContext context,
 double other)

op_le

public IRubyObject op_le(ThreadContext context,
 IRubyObject other)

flo_le

op_le

public IRubyObject op_le(ThreadContext context,
 double other)

eql_p

public IRubyObject eql_p(IRubyObject other)

flo_eql

Overrides:

eql_p in class RubyBasicObject

eql

public final boolean eql(IRubyObject other)

short circuit for Float key comparison

Specified by:

eql in interface IRubyObject

Overrides:

eql in class RubyBasicObject

equals

public boolean equals(Object other)

Description copied from class: RubyObject

This override does not do a "checked" dispatch.

Overrides:

equals in class RubyObject

See Also:

• RubyBasicObject.equals(Object)

equals

private boolean equals(RubyFloat that)

hash

public RubyFixnum hash()

flo_hash

Overrides:

hash in class RubyBasicObject

hashCode

public final int hashCode()

Description copied from class: RubyObject

This override does not do "checked" dispatch since Object usually has #hash defined.

Overrides:

hashCode in class RubyObject

See Also:

• RubyBasicObject.hashCode()

floatHash

private static long floatHash(Ruby runtime,
 double value)

to_f

public IRubyObject to_f()

flo_fo

abs

public IRubyObject abs(ThreadContext context)

flo_abs

Overrides:

abs in class RubyNumeric

magnitude

public IRubyObject magnitude(ThreadContext context)

flo_abs/1.9

Overrides:

magnitude in class RubyNumeric

zero_p

public IRubyObject zero_p(ThreadContext context)

MRI: flo_zero_p

Overrides:

zero_p in class RubyNumeric

isZero

public final boolean isZero()

Overrides:

isZero in class RubyNumeric

nonzero_p

public IRubyObject nonzero_p(ThreadContext context)

Description copied from class: RubyNumeric

num_nonzero_p

Overrides:

nonzero_p in class RubyNumeric

truncate

public IRubyObject truncate(ThreadContext context)

MRI: flo_truncate

Overrides:

truncate in class RubyNumeric

truncate

public IRubyObject truncate(ThreadContext context,
 IRubyObject n)

MRI: flo_truncate

numerator

public IRubyObject numerator(ThreadContext context)

flo_numerator

Overrides:

numerator in class RubyNumeric

denominator

public IRubyObject denominator(ThreadContext context)

flo_denominator

Overrides:

denominator in class RubyNumeric

to_r

public IRubyObject to_r(ThreadContext context)

rationalize

public IRubyObject rationalize(ThreadContext context,
 IRubyObject[] args)

float_rationalize

floor

public IRubyObject floor(ThreadContext context)

MRI: flo_floor

Overrides:

floor in class RubyNumeric

floor

public IRubyObject floor(ThreadContext context,
 IRubyObject digits)

MRI: flo_floor

floatRoundOverflow

private static boolean floatRoundOverflow(int ndigits,
 long[] binexp)

floatRoundUnderflow

private static boolean floatRoundUnderflow(int ndigits,
 long[] binexp)

ceil

public IRubyObject ceil(ThreadContext context)

MRI: flo_ceil

Overrides:

ceil in class RubyNumeric

ceil

public IRubyObject ceil(ThreadContext context,
 IRubyObject digits)

MRI: flo_ceil

round

public IRubyObject round(ThreadContext context)

MRI: flo_round

Overrides:

round in class RubyNumeric

round

public IRubyObject round(ThreadContext context,
 IRubyObject arg0)

MRI: flo_round

round

public IRubyObject round(ThreadContext context,
 IRubyObject _digits,
 IRubyObject _opts)

MRI: flo_round

roundShared

public IRubyObject roundShared(ThreadContext context,
 int ndigits,
 RoundingMode mode)

doRound

private static double doRound(ThreadContext context,
 RoundingMode roundingMode,
 double number,
 double scale)

roundHalfUp

private static double roundHalfUp(double x,
 double s)

roundHalfDown

private static double roundHalfDown(double x,
 double s)

roundHalfUp

private static double roundHalfUp(double n)

roundHalfEven

private static double roundHalfEven(double x,
 double s)

nan_p

public IRubyObject nan_p()

flo_is_nan_p

isNaN

public boolean isNaN()

infinite_p

public IRubyObject infinite_p()

flo_is_infinite_p

isInfinite

public boolean isInfinite()

finite_p

public IRubyObject finite_p()

flo_is_finite_p

marshalDump

private ByteList marshalDump()

marshalTo

public static void marshalTo(RubyFloat aFloat,
 MarshalStream output)
                      throws IOException

Throws:

IOException

unmarshalFrom

public static RubyFloat unmarshalFrom(UnmarshalStream input)
                               throws IOException

Throws:

IOException

next_float

public IRubyObject next_float()

prev_float

public IRubyObject prev_float()

id

public IRubyObject id()

Produce an object ID for this Float. Values within the "flonum" range will produce a special object ID that emulates the CRuby tagged "flonum" pointer logic. This ID is never registered but can be reversed by ObjectSpace._id2ref using the same bit manipulation as in CRuby.

Specified by:

id in interface IRubyObject

Overrides:

id in class RubyBasicObject

Returns:

the object ID for this Float

equal_p

public IRubyObject equal_p(ThreadContext context,
 IRubyObject obj)

Compare this Float object with the given object and determine whether they are effectively identical. This logic for Float considers all values in the "flonum" range to be identical, since in CRuby they would have the same pointer value (a tagged "flonum" pointer). We do not support flonums, but emulate this behavior for compatibility.

Overrides:

equal_p in class RubyBasicObject

Parameters:

context - the current context

obj - the object with which to compare

Returns:

true if this Float and the given object are effectively identical, false otherwise

flonumable

private static boolean flonumable(double value)

Determine if the given double value is representable as a "flonum", a bit-manipulated version of itself that emulates the CRuby "flonum" tagged pointer.

Parameters:

value - the double value in question

Returns:

true of the value can be represented as a "flonum", false otherwise

flonumRange

private static boolean flonumRange(long longBits)

Determine if the given double bits are in the "flonum" range, excluding positive zero.

Parameters:

longBits - the bits of the double in question

Returns:

true if the double is in the non-zero "flonum" range, false otherwise

positiveZero

private static boolean positiveZero(long longBits)

Determine of the given double bits represent positive zero.

Parameters:

longBits - the bits of the double in question

Returns:

true of the bits represent positive zero, false otherwise

zero_p

@Deprecated
public IRubyObject zero_p()

Deprecated.

floor

@Deprecated
public IRubyObject floor(ThreadContext context,
 IRubyObject[] args)

Deprecated.

round

@Deprecated
public IRubyObject round(ThreadContext context,
 IRubyObject[] args)

Deprecated.

sites

private static JavaSites.FloatSites sites(ThreadContext context)