Struct Floor 

pub struct Floor { /* private fields */ }

Floor function.

Trait Implementations

impl Debug for Floor

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

Formats the value using the given formatter.

impl Evaluate for Floor

fn eval(&self, args: &dyn GetVariable) -> Result<f64, EvaluationError>

Evaluates value of formula, args contains variables.

impl Function for Floor

const MIN_NUMBER_OF_ARGUMENTS: usize = 1usize

Minimal number of function arguments.

const MAX_NUMBER_OF_ARGUMENTS: usize = 1usize

Maximum number of function arguments.

const NAME: &'static str = "floor"

Name of function.

fn parse<T: for<'a> GetFunction<'a>>( arguments: &[&str], formulas: &T, ) -> Result<Self, ParserError>

where Self: Sized,

Parses arguments and creates function.

fn parse_into_box<T: for<'a> GetFunction<'a>>( arguments: &[&str], formulas: &T, ) -> Result<Box<dyn FunctionLike>, ParserError>

where Self: Sized + 'static,

Parses arguments and creates function stored in Box as trait object.

impl FunctionLike for Floor

fn collapse_inner(&mut self) -> Result<(), MathError>

Simplifies function arguments. For example if one of the function arguments is “1 + 2”, this method will simplify it to “3”

fn set_all_variables_shared(&mut self, args: &dyn GetVariable)

Sets variables present in function to formulas stored in args as shared function. If function has some inner state and set as shared in different formulas, inner state will be shared.

fn set_all_variables_owned(&mut self, args: &dyn GetVariable)

Sets variables present in function to formulas stored in args as owned function. If function has some inner state and set as owned in different formulas, inner state will be different.

fn set_variable_shared(&mut self, name: &Variable, function: &Arc<RootFormula>)

Sets variable name in function to function as shared function. If function has some inner state and set as shared in different formulas, inner state will be shared.

fn set_variable_owned(&mut self, name: &Variable, function: &RootFormula)

Sets variable name in function to function as owned function. If function has some inner state and set as owned in different formulas, inner state will be different.

fn clone_into_box(&self) -> Box<dyn FunctionLike>

Creates clone of object stored in Box as trait object

impl IsConst for Floor

fn is_const(&self) -> bool

Returns true if formula returns same value for every .eval(…) call, else returns false.