Package daikon.inv.binary.twoScalar

Class NumericInt.BitwiseAndZero

Object

Invariant

BinaryInvariant

TwoScalar

NumericInt

BitwiseAndZero

All Implemented Interfaces:

Serializable, Cloneable

Enclosing class:

NumericInt

public static class NumericInt.BitwiseAndZero
extends NumericInt

Represents the BitwiseAnd == 0 invariant between two long scalars; that is, x and y have no bits in common. Prints as x & y == 0.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class NumericInt

NumericInt.BitwiseAndZero, NumericInt.BitwiseComplement, NumericInt.BitwiseSubset, NumericInt.Divides, NumericInt.ShiftZero, NumericInt.Square, NumericInt.ZeroTrack

Nested classes/interfaces inherited from class Invariant

Invariant.ClassVarnameComparator, Invariant.ClassVarnameFormulaComparator, Invariant.InvariantComparatorForPrinting, Invariant.Match

Field Summary

Fields

Modifier and Type	Field	Description
static boolean	dkconfig_enabled	Boolean.

Fields inherited from class NumericInt

var1_eq_0, var1_eq_1, var1_eq_minus_1, var1_eq_var2, var1_ge_0, var1_le_var2, var1_ne_0, var2_eq_0, var2_eq_1, var2_eq_minus_1, var2_eq_var1, var2_ge_0, var2_ne_0, var2_valid_shift

Fields inherited from class TwoScalar

swap

Fields inherited from class Invariant

CONFIDENCE_JUSTIFIED, CONFIDENCE_NEVER, CONFIDENCE_UNJUSTIFIED, debug, debugFlow, debugGuarding, debugIsObvious, debugIsWorthPrinting, debugPrint, debugPrintEquality, dkconfig_confidence_limit, dkconfig_fuzzy_ratio, dkconfig_simplify_define_predicates, falsified, invariantEnabledDefault, isGuardingPredicate, min_mod_non_missing_samples, ppt, PROBABILITY_JUSTIFIED, PROBABILITY_NEVER, PROBABILITY_UNJUSTIFIED

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	BitwiseAndZero()
protected	BitwiseAndZero(PptSlice ppt)

Method Summary

Modifier and Type	Method	Description
boolean	enabled()	Returns whether or not this invariant is enabled.
boolean	eq_check(long x, long y)	Returns true if x and y don't invalidate the invariant.
String	get_format_str(OutputFormat format)	Return a format string for the specified output format.
@Nullable NISuppressionSet	get_ni_suppressions()	Returns a list of non-instantiating suppressions for this invariant.
static NumericInt.BitwiseAndZero	get_proto()	Returns the prototype invariant.
NumericInt.BitwiseAndZero	instantiate_dyn(PptSlice slice)	Instantiates (creates) an invariant of the same class on the specified slice.
boolean	is_symmetric()	Returns true if the binary function is symmetric (x,y ⇒ y,x).

Methods inherited from class NumericInt

check_modified, format_using, get_proto_all, instantiate_ok, is_subscript, isExact, isObviousDynamically, obvious_checks, repr

Methods inherited from class TwoScalar

add, add_modified, add_unmodified, check, check_unmodified, computeConfidence, get_swap, isSameFormula, resurrect_done, resurrect_done_swapped, resurrect_done_unswapped, valid_types, var1, var1, var2, var2

Methods inherited from class BinaryInvariant

add_unordered, check_unordered, find

Methods inherited from class Invariant

add_sample, asInvClass, checkRep, clear_falsified, clone, clone_and_permute, conf_is_ge, confidence_and, confidence_and, confidence_or, createGuardedInvariant, createGuardingPredicate, enoughSamples, falsify, find, format, format_classname, format_too_few_samples, format_unimplemented, formatFuzzy, get_comparability, getConfidence, getGuardingList, getGuardingList, hasUninterestingConstant, instantiate, is_false, is_ni_suppressed, isActive, isAllPrestate, isEqualityComparison, isExclusiveFormula, isObvious, isObviousDynamically, isObviousDynamically_SomeInEquality, isObviousDynamically_SomeInEqualityHelper, isObviousStatically, isObviousStatically, isObviousStatically_AllInEquality, isObviousStatically_SomeInEquality, isObviousStatically_SomeInEqualityHelper, isReflexive, isSameInvariant, isValidEscExpression, isValidExpression, isWorthPrinting, justified, log, log, logDetail, logOn, match, merge, mergeFormulasOk, permute, prob_and, prob_and, prob_is_ge, prob_or, repCheck, repr_prob, resurrect, simplify_format_double, simplify_format_long, simplify_format_string, state_match, toString, toString, transfer, usesVar, usesVar, usesVarDerived, varNames

Methods inherited from class Object

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

Field Detail

dkconfig_enabled

public static boolean dkconfig_enabled

Boolean. True iff BitwiseAndZero invariants should be considered.

Constructor Detail

BitwiseAndZero

protected BitwiseAndZero(PptSlice ppt)

BitwiseAndZero

protected BitwiseAndZero()

Method Detail

get_proto

public static NumericInt.BitwiseAndZero get_proto()

Returns the prototype invariant.

enabled

public boolean enabled()

Returns whether or not this invariant is enabled.

Specified by:

enabled in class Invariant

instantiate_dyn

public NumericInt.BitwiseAndZero instantiate_dyn( NumericInt.BitwiseAndZero this,
                                                 PptSlice slice)

Description copied from class: Invariant

Instantiates (creates) an invariant of the same class on the specified slice. Must be overridden in each class. Must be used rather than Invariant.clone() so that checks in Invariant.instantiate(daikon.PptSlice) for reasonable invariants are done.

The implementation of this method is almost always return new <em>InvName</em>(slice);

Specified by:

instantiate_dyn in class Invariant

Returns:

the new invariant

get_format_str

public String get_format_str(@GuardSatisfied NumericInt.BitwiseAndZero this,
                             OutputFormat format)

Description copied from class: NumericInt

Return a format string for the specified output format. Each instance of %varN% will be replaced by the correct name for varN.

Specified by:

get_format_str in class NumericInt

is_symmetric

@Pure
public boolean is_symmetric()

Description copied from class: BinaryInvariant

Returns true if the binary function is symmetric (x,y ⇒ y,x). Subclasses that are symmetric should override.

Overrides:

is_symmetric in class BinaryInvariant

eq_check

public boolean eq_check(long x,
                        long y)

Description copied from class: NumericInt

Returns true if x and y don't invalidate the invariant.

Specified by:

eq_check in class NumericInt

get_ni_suppressions

@Pure
public @Nullable NISuppressionSet get_ni_suppressions()

Returns a list of non-instantiating suppressions for this invariant.

Overrides:

get_ni_suppressions in class Invariant

Returns:

the set of non-instantiating suppressions for this invariant