Struct astro_float::ctx::Context

pub struct Context { /* private fields */ }

Context contains parameters, like rounding mode and precision, as well as constant values, and is used with expr! macro.

Implementations

impl Context

pub fn new(p: usize, rm: RoundingMode, cc: Consts) -> Context

Create a new context.

pub fn to_raw_parts(self) -> (usize, RoundingMode, Consts)

Destructures the context and returns its parts.

pub fn set_precision(&mut self, p: usize)

Sets the precision of the context.

pub fn set_rounding_mode(&mut self, rm: RoundingMode)

Sets the rounding mode of the context.

pub fn set_consts(&mut self, cc: Consts)

Sets the constant cache of the context.

pub fn precision(&self) -> usize

Returns the precision of the context.

pub fn rounding_mode(&self) -> RoundingMode

Returns the rounding mode of the context.

pub fn consts(&mut self) -> &mut Consts

Returns a mutable reference to the constant cache of the context.

pub fn const_pi(&mut self) -> BigFloat

Returns the value of the pi number.

pub fn const_e(&mut self) -> BigFloat

Returns the value of the Euler number.

pub fn const_ln2(&mut self) -> BigFloat

Returns the value of the natural logarithm of 2.

pub fn const_ln10(&mut self) -> BigFloat

Returns the value of the natural logarithm of 10.

pub fn clone(&self) -> Result<Context, Error>

Clones self and returns the cloned context.

Errors

• MemoryAllocation: failed to allocate memory for the constants cache.

Trait Implementations

impl Contextable for Context

fn precision(&self) -> usize

Returns the precision of the context.

fn rounding_mode(&self) -> RoundingMode

Returns the rounding mode of the context.

fn consts(&mut self) -> &mut Consts

Returns a mutable reference to the constant cache of the context.

fn const_pi(&mut self) -> BigFloat

Returns the value of the pi number.

fn const_e(&mut self) -> BigFloat

Returns the value of the Euler number.

fn const_ln2(&mut self) -> BigFloat

Returns the value of the natural logarithm of 2.

fn const_ln10(&mut self) -> BigFloat

Returns the value of the natural logarithm of 10.

impl Debug for Context

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

Formats the value using the given formatter.