Package org.jruby.util

Class Numeric

java.lang.Object

org.jruby.util.Numeric

public class Numeric
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final class	Numeric.ComplexPatterns
static final class	Numeric.RationalPatterns

Field Summary

Fields

Modifier and Type	Field	Description
static final boolean	CANON

Constructor Summary

Constructors

Constructor	Description
Numeric()

Method Summary

Modifier and Type	Method	Description
static void	checkInteger(ThreadContext context, IRubyObject obj)	Deprecated.
static RubyFloat	f_abs(ThreadContext context, RubyFloat x)
static RubyInteger	f_abs(ThreadContext context, RubyInteger x)
static IRubyObject	f_abs(ThreadContext context, IRubyObject x)	f_abs
static IRubyObject	f_abs2(ThreadContext context, IRubyObject x)	f_abs2
static RubyInteger	f_add(ThreadContext context, RubyInteger x, RubyInteger y)
static IRubyObject	f_add(ThreadContext context, IRubyObject x, IRubyObject y)	f_add
static IRubyObject	f_arg(ThreadContext context, IRubyObject x)	f_arg
static RubyFixnum	f_cmp(ThreadContext context, RubyInteger x, long y)
static RubyFixnum	f_cmp(ThreadContext context, RubyInteger x, RubyInteger y)
static IRubyObject	f_cmp(ThreadContext context, IRubyObject x, IRubyObject y)	f_cmp
static IRubyObject	f_conjugate(ThreadContext context, IRubyObject x)	f_conjugate
static IRubyObject	f_denominator(ThreadContext context, IRubyObject x)	f_denominator
static IRubyObject	f_div(ThreadContext context, IRubyObject x, IRubyObject y)	f_div
static IRubyObject	f_divmod(ThreadContext context, RubyInteger x, IRubyObject y)
static IRubyObject	f_divmod(ThreadContext context, IRubyObject x, IRubyObject y)	f_divmod
static boolean	f_eqeq_p(ThreadContext context, IRubyObject x, IRubyObject y)
static IRubyObject	f_equal(ThreadContext context, RubyInteger x, RubyInteger y)
static IRubyObject	f_equal(ThreadContext context, IRubyObject a, IRubyObject b)	f_equal Note: This may not return a value which is a boolean.
static boolean	f_exact_p(ThreadContext context, IRubyObject x)	f_exact_p
static RubyNumeric	f_expt(ThreadContext context, RubyInteger x, RubyInteger y)
static IRubyObject	f_expt(ThreadContext context, IRubyObject x, IRubyObject y)	f_expt
static IRubyObject	f_floor(ThreadContext context, IRubyObject x)	f_floor
static RubyInteger	f_gcd(ThreadContext context, RubyInteger x, RubyInteger y)
static IRubyObject	f_gcd(ThreadContext context, IRubyObject x, IRubyObject y)	f_gcd
static boolean	f_gt_p(ThreadContext context, RubyInteger x, RubyInteger y)
static boolean	f_gt_p(ThreadContext context, IRubyObject x, IRubyObject y)	f_gt_p
static RubyInteger	f_idiv(ThreadContext context, RubyInteger x, RubyInteger y)
static IRubyObject	f_idiv(ThreadContext context, IRubyObject x, IRubyObject y)	f_idiv
static IRubyObject	f_inspect(ThreadContext context, IRubyObject x)	f_inspect
static boolean	f_integer_p(ThreadContext context, RubyNumeric x)
static boolean	f_integer_p(ThreadContext context, IRubyObject x)	f_integer_p
static IRubyObject	f_lcm(ThreadContext context, IRubyObject x, IRubyObject y)	f_lcm
static IRubyObject	f_lshift(ThreadContext context, IRubyObject x, IRubyObject y)	f_lshift
static boolean	f_lt_p(ThreadContext context, RubyInteger x, RubyInteger y)
static boolean	f_lt_p(ThreadContext context, IRubyObject x, IRubyObject y)	f_lt_p
static boolean	f_minus_one_p(ThreadContext context, IRubyObject x)	f_minus_one_p
static IRubyObject	f_mod(ThreadContext context, IRubyObject x, IRubyObject y)	f_mod
static RubyInteger	f_mul(ThreadContext context, RubyInteger x, RubyInteger y)
static IRubyObject	f_mul(ThreadContext context, IRubyObject x, IRubyObject y)	f_mul
static RubyInteger	f_negate(ThreadContext context, RubyInteger x)
static IRubyObject	f_negate(ThreadContext context, IRubyObject x)	f_negate
static boolean	f_negative_p(ThreadContext context, RubyFloat x)
static boolean	f_negative_p(ThreadContext context, RubyInteger x)
static boolean	f_negative_p(ThreadContext context, IRubyObject x)	f_negative_p
static IRubyObject	f_numerator(ThreadContext context, IRubyObject x)	f_numerator
static boolean	f_odd_p(ThreadContext context, IRubyObject i)	f_odd_p
static boolean	f_one_p(ThreadContext context, IRubyObject x)	f_one_p
static IRubyObject	f_polar(ThreadContext context, IRubyObject x)	f_polar
static IRubyObject	f_quo(ThreadContext context, RubyFloat x, RubyFloat y)
static IRubyObject	f_quo(ThreadContext context, IRubyObject x, IRubyObject y)	f_quo
static boolean	f_real_p(ThreadContext context, IRubyObject x)	f_real_p
static IRubyObject	f_reciprocal(ThreadContext context, IRubyObject x)	MRI: f_reciprocal
static IRubyObject	f_rshift(ThreadContext context, IRubyObject x, IRubyObject y)	f_rshift
static RubyInteger	f_sub(ThreadContext context, RubyInteger x, RubyInteger y)
static IRubyObject	f_sub(ThreadContext context, IRubyObject x, IRubyObject y)	f_sub
static IRubyObject	f_to_f(ThreadContext context, IRubyObject x)	f_to_f
static IRubyObject	f_to_i(ThreadContext context, IRubyObject x)	f_to_i
static RubyNumeric	f_to_r(ThreadContext context, RubyInteger x)
static IRubyObject	f_to_r(ThreadContext context, IRubyObject x)	f_to_r
static IRubyObject	f_to_s(ThreadContext context, IRubyObject x)	f_to_s
static IRubyObject	f_truncate(ThreadContext context, IRubyObject x)	f_truncate
static IRubyObject	f_xor(ThreadContext context, RubyInteger x, RubyInteger y)
static IRubyObject	f_xor(ThreadContext context, IRubyObject x, IRubyObject y)	f_xor
static boolean	f_zero_p(ThreadContext context, RubyInteger x)
static boolean	f_zero_p(ThreadContext context, IRubyObject x)	f_zero_p
static double	frexp(double mantissa, long[] e)
static long	i_gcd(long x, long y)	i_gcd
static long	i_ilog2(ThreadContext context, RubyInteger x)
static long	i_ilog2(ThreadContext context, IRubyObject x)
static RubyNumeric	int_pow(ThreadContext context, long x, long y)
protected static boolean	isLongMinValue(RubyFixnum x)	Check if the Fixnum passed is equal to Long.MAX_VALUE.
static boolean	k_exact_p(IRubyObject x)
static boolean	k_exact_zero_p(ThreadContext context, IRubyObject x)	MRI: k_exact_zero_p
static boolean	k_inexact_p(IRubyObject x)
static boolean	k_integer_p(IRubyObject x)
static boolean	k_numeric_p(IRubyObject x)
static double	ldexp(double f, long e)
static boolean	multiplyOverflows(long a, long b)
static IRubyObject	num_pow(ThreadContext context, IRubyObject x, IRubyObject y)
static IRubyObject[]	nurat_rationalize_internal(ThreadContext context, IRubyObject[] ary)
static IRubyObject[]	nurat_rationalize_internal(ThreadContext context, IRubyObject a, IRubyObject b)
static long	rotl(long bits, int rot)	Rotate the given long bits left.
static long	rotr(long bits, int rot)	Rotate the given long bits right.
static IRubyObject	safe_mul(ThreadContext context, IRubyObject a, IRubyObject b, boolean az, boolean bz)

Methods inherited from class java.lang.Object

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

Field Details

CANON

public static final boolean CANON

See Also:

• Constant Field Values

Constructor Details

Numeric

public Numeric()

Method Details

f_add

public static IRubyObject f_add(ThreadContext context,
 IRubyObject x,
 IRubyObject y)

f_add

f_add

public static RubyInteger f_add(ThreadContext context,
 RubyInteger x,
 RubyInteger y)

f_cmp

public static IRubyObject f_cmp(ThreadContext context,
 IRubyObject x,
 IRubyObject y)

f_cmp

f_cmp

public static RubyFixnum f_cmp(ThreadContext context,
 RubyInteger x,
 RubyInteger y)

f_cmp

public static RubyFixnum f_cmp(ThreadContext context,
 RubyInteger x,
 long y)

f_div

public static IRubyObject f_div(ThreadContext context,
 IRubyObject x,
 IRubyObject y)

f_div

f_gt_p

public static boolean f_gt_p(ThreadContext context,
 IRubyObject x,
 IRubyObject y)

f_gt_p

f_gt_p

public static boolean f_gt_p(ThreadContext context,
 RubyInteger x,
 RubyInteger y)

f_lt_p

public static boolean f_lt_p(ThreadContext context,
 IRubyObject x,
 IRubyObject y)

f_lt_p

f_lt_p

public static boolean f_lt_p(ThreadContext context,
 RubyInteger x,
 RubyInteger y)

f_mod

public static IRubyObject f_mod(ThreadContext context,
 IRubyObject x,
 IRubyObject y)

f_mod

f_mul

public static IRubyObject f_mul(ThreadContext context,
 IRubyObject x,
 IRubyObject y)

f_mul

f_mul

public static RubyInteger f_mul(ThreadContext context,
 RubyInteger x,
 RubyInteger y)

safe_mul

public static IRubyObject safe_mul(ThreadContext context,
 IRubyObject a,
 IRubyObject b,
 boolean az,
 boolean bz)

f_sub

public static IRubyObject f_sub(ThreadContext context,
 IRubyObject x,
 IRubyObject y)

f_sub

f_sub

public static RubyInteger f_sub(ThreadContext context,
 RubyInteger x,
 RubyInteger y)

f_xor

public static IRubyObject f_xor(ThreadContext context,
 IRubyObject x,
 IRubyObject y)

f_xor

f_xor

public static IRubyObject f_xor(ThreadContext context,
 RubyInteger x,
 RubyInteger y)

f_abs

public static IRubyObject f_abs(ThreadContext context,
 IRubyObject x)

f_abs

f_abs

public static RubyInteger f_abs(ThreadContext context,
 RubyInteger x)

f_abs

public static RubyFloat f_abs(ThreadContext context,
 RubyFloat x)

f_abs2

public static IRubyObject f_abs2(ThreadContext context,
 IRubyObject x)

f_abs2

f_arg

public static IRubyObject f_arg(ThreadContext context,
 IRubyObject x)

f_arg

f_conjugate

public static IRubyObject f_conjugate(ThreadContext context,
 IRubyObject x)

f_conjugate

f_denominator

public static IRubyObject f_denominator(ThreadContext context,
 IRubyObject x)

f_denominator

f_exact_p

public static boolean f_exact_p(ThreadContext context,
 IRubyObject x)

f_exact_p

f_numerator

public static IRubyObject f_numerator(ThreadContext context,
 IRubyObject x)

f_numerator

f_polar

public static IRubyObject f_polar(ThreadContext context,
 IRubyObject x)

f_polar

f_real_p

public static boolean f_real_p(ThreadContext context,
 IRubyObject x)

f_real_p

f_integer_p

public static boolean f_integer_p(ThreadContext context,
 IRubyObject x)

f_integer_p

f_integer_p

public static boolean f_integer_p(ThreadContext context,
 RubyNumeric x)

f_divmod

public static IRubyObject f_divmod(ThreadContext context,
 IRubyObject x,
 IRubyObject y)

f_divmod

f_divmod

public static IRubyObject f_divmod(ThreadContext context,
 RubyInteger x,
 IRubyObject y)

f_floor

public static IRubyObject f_floor(ThreadContext context,
 IRubyObject x)

f_floor

f_inspect

public static IRubyObject f_inspect(ThreadContext context,
 IRubyObject x)

f_inspect

f_negate

public static IRubyObject f_negate(ThreadContext context,
 IRubyObject x)

f_negate

f_negate

public static RubyInteger f_negate(ThreadContext context,
 RubyInteger x)

f_to_f

public static IRubyObject f_to_f(ThreadContext context,
 IRubyObject x)

f_to_f

f_to_i

public static IRubyObject f_to_i(ThreadContext context,
 IRubyObject x)

f_to_i

f_to_r

public static IRubyObject f_to_r(ThreadContext context,
 IRubyObject x)

f_to_r

f_to_r

public static RubyNumeric f_to_r(ThreadContext context,
 RubyInteger x)

f_to_s

public static IRubyObject f_to_s(ThreadContext context,
 IRubyObject x)

f_to_s

f_truncate

public static IRubyObject f_truncate(ThreadContext context,
 IRubyObject x)

f_truncate

f_equal

public static IRubyObject f_equal(ThreadContext context,
 IRubyObject a,
 IRubyObject b)

f_equal Note: This may not return a value which is a boolean. other.== can return non-boolean (which unless it is nil it will be isTrue()).

f_equal

public static IRubyObject f_equal(ThreadContext context,
 RubyInteger x,
 RubyInteger y)

f_expt

public static IRubyObject f_expt(ThreadContext context,
 IRubyObject x,
 IRubyObject y)

f_expt

f_expt

public static RubyNumeric f_expt(ThreadContext context,
 RubyInteger x,
 RubyInteger y)

f_idiv

public static IRubyObject f_idiv(ThreadContext context,
 IRubyObject x,
 IRubyObject y)

f_idiv

f_idiv

public static RubyInteger f_idiv(ThreadContext context,
 RubyInteger x,
 RubyInteger y)

f_quo

public static IRubyObject f_quo(ThreadContext context,
 IRubyObject x,
 IRubyObject y)

f_quo

f_quo

public static IRubyObject f_quo(ThreadContext context,
 RubyFloat x,
 RubyFloat y)

f_reciprocal

public static IRubyObject f_reciprocal(ThreadContext context,
 IRubyObject x)

MRI: f_reciprocal

f_rshift

public static IRubyObject f_rshift(ThreadContext context,
 IRubyObject x,
 IRubyObject y)

f_rshift

f_lshift

public static IRubyObject f_lshift(ThreadContext context,
 IRubyObject x,
 IRubyObject y)

f_lshift

f_negative_p

public static boolean f_negative_p(ThreadContext context,
 IRubyObject x)

f_negative_p

f_negative_p

public static boolean f_negative_p(ThreadContext context,
 RubyInteger x)

f_negative_p

public static boolean f_negative_p(ThreadContext context,
 RubyFloat x)

f_zero_p

public static boolean f_zero_p(ThreadContext context,
 IRubyObject x)

f_zero_p

f_zero_p

public static boolean f_zero_p(ThreadContext context,
 RubyInteger x)

f_one_p

public static boolean f_one_p(ThreadContext context,
 IRubyObject x)

f_one_p

f_minus_one_p

public static boolean f_minus_one_p(ThreadContext context,
 IRubyObject x)

f_minus_one_p

f_odd_p

public static boolean f_odd_p(ThreadContext context,
 IRubyObject i)

f_odd_p

i_gcd

public static long i_gcd(long x,
 long y)

i_gcd

f_gcd

public static IRubyObject f_gcd(ThreadContext context,
 IRubyObject x,
 IRubyObject y)

f_gcd

f_gcd

public static RubyInteger f_gcd(ThreadContext context,
 RubyInteger x,
 RubyInteger y)

isLongMinValue

protected static boolean isLongMinValue(RubyFixnum x)

Check if the Fixnum passed is equal to Long.MAX_VALUE.

Parameters:

x - the Fixnum to compare

Returns:

true if it is equal to Long.MAX_VALUE, false otherwise.

f_lcm

public static IRubyObject f_lcm(ThreadContext context,
 IRubyObject x,
 IRubyObject y)

f_lcm

i_ilog2

public static long i_ilog2(ThreadContext context,
 IRubyObject x)

i_ilog2

public static long i_ilog2(ThreadContext context,
 RubyInteger x)

ldexp

public static double ldexp(double f,
 long e)

frexp

public static double frexp(double mantissa,
 long[] e)

int_pow

public static RubyNumeric int_pow(ThreadContext context,
 long x,
 long y)

num_pow

public static IRubyObject num_pow(ThreadContext context,
 IRubyObject x,
 IRubyObject y)

multiplyOverflows

public static boolean multiplyOverflows(long a,
 long b)

k_exact_p

public static boolean k_exact_p(IRubyObject x)

k_exact_zero_p

public static boolean k_exact_zero_p(ThreadContext context,
 IRubyObject x)

MRI: k_exact_zero_p

k_inexact_p

public static boolean k_inexact_p(IRubyObject x)

k_integer_p

public static boolean k_integer_p(IRubyObject x)

k_numeric_p

public static boolean k_numeric_p(IRubyObject x)

rotl

public static long rotl(long bits,
 int rot)

Rotate the given long bits left.

Parameters:

bits - the bits to rotate

rot - how many bit positions to rotate

Returns:

the rotated value

rotr

public static long rotr(long bits,
 int rot)

Rotate the given long bits right.

Parameters:

bits - the bits to rotate

rot - how many bit positions to rotate

Returns:

the rotated value

nurat_rationalize_internal

public static IRubyObject[] nurat_rationalize_internal(ThreadContext context,
 IRubyObject a,
 IRubyObject b)

nurat_rationalize_internal

public static IRubyObject[] nurat_rationalize_internal(ThreadContext context,
 IRubyObject[] ary)

f_eqeq_p

public static boolean f_eqeq_p(ThreadContext context,
 IRubyObject x,
 IRubyObject y)

checkInteger

@Deprecated
public static void checkInteger(ThreadContext context,
 IRubyObject obj)

Deprecated.