Enum BooleanFunctionError

pub enum BooleanFunctionError {
    WrongStringHexTruthTableLength,
    StringHexParseError,
    TooBigVariableCount(usize),
    UnexpectedError,
    TooBigDerivativeDirection(u32),
    InvalidWalshValuesCount(usize),
    TooBigTruthTableForVarCount,
    AlreadyBalanced,
    ErrorParsingAnfString,
    AnfFormNVariableTooBigFactor(usize, usize),
}

Possible errors for the boolean function library.

Variants

WrongStringHexTruthTableLength

Error parsing hex string: the string length must be a power of 2 to represent a truth table.

StringHexParseError

Error parsing hex string: probably some characters are not valid hex characters.

TooBigVariableCount(usize)

The Boolean function variable count is too big: it must be $\leq 6$ for crate::SmallBooleanFunction and $\leq 31$ for crate::BooleanFunction / crate::BigBooleanFunction. The last limit is due to the maximum number of variables that can be represented in a 32-bit integer.

UnexpectedError

An unexpected error occurred. This should not happen as the case is supposed to be handled. Please report this issue to the crate maintainer.

TooBigDerivativeDirection(u32)

The derivative direction is too big: it must be $< 2^n$, where n is the number of variables.

InvalidWalshValuesCount(usize)

The Walsh values count is invalid: it must be $2^n$, where $n \geq 2$. n is the number of variables of the Boolean function.

TooBigTruthTableForVarCount

The truth table is too big for the number of variables: it must be $< 2^{2^n}$, where n is the number of variables.

AlreadyBalanced

Cannot generate close balanced Boolean function iterator, as the given function is already balanced

ErrorParsingAnfString

Error parsing ANF string, should be in the form “x0x2x3 + x2*x3 + x1 + 1”

AnfFormNVariableTooBigFactor(usize, usize)

The given factor is too big for the variable count. For example, x4 cannot exist if variable count = 4

Trait Implementations

impl Clone for BooleanFunctionError

fn clone(&self) -> BooleanFunctionError

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for BooleanFunctionError

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for BooleanFunctionError

fn fmt(&self, __formatter: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Error for BooleanFunctionError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl PartialEq for BooleanFunctionError

fn eq(&self, other: &BooleanFunctionError) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for BooleanFunctionError