pub struct FixedI128(_);
Expand description

A fixed point number representation in the range. Fixed Point 128 bits signed, range = [-170141183460469231731.687303715884105728, 170141183460469231731.687303715884105727]

Implementations

Create a new instance from the given inner value.

const version of FixedPointNumber::from_inner.

Return the instance’s inner value.

const version of FixedPointNumber::into_inner.

Creates self from a u32.

WARNING: This is a const function designed for convenient use at build time and will panic on overflow. Ensure that any inputs are sensible.

Convert from a float value.

Convert from a Perbill value.

Convert into a Perbill value. Will saturate if above one or below zero.

Convert into a float value.

Attempt to convert into a PerThing. This will succeed iff self is at least zero and at most one. If it is out of bounds, it will result in an error returning the clamped value.

Attempt to convert into a PerThing. This will always succeed resulting in a clamped value if self is less than zero or greater than one.

Negate the value.

WARNING: This is a const function designed for convenient use at build time and will panic on overflow. Ensure that any inputs are sensible.

Take the square root of a positive value.

WARNING: This is a const function designed for convenient use at build time and will panic on overflow. Ensure that any inputs are sensible.

Compute the square root, rounding as desired. If it overflows or is negative, then None is returned.

Add a value and return the result.

WARNING: This is a const function designed for convenient use at build time and will panic on overflow. Ensure that any inputs are sensible.

Subtract a value and return the result.

WARNING: This is a const function designed for convenient use at build time and will panic on overflow. Ensure that any inputs are sensible.

Multiply by a value and return the result.

Result will be rounded to the nearest representable value, rounding down if it is equidistant between two neighbours.

WARNING: This is a const function designed for convenient use at build time and will panic on overflow. Ensure that any inputs are sensible.

Divide by a value and return the result.

Result will be rounded to the nearest representable value, rounding down if it is equidistant between two neighbours.

WARNING: This is a const function designed for convenient use at build time and will panic on overflow. Ensure that any inputs are sensible.

Calculate an approximation of a rational.

Result will be rounded to the nearest representable value, rounding down if it is equidistant between two neighbours.

WARNING: This is a const function designed for convenient use at build time and will panic on overflow. Ensure that any inputs are sensible.

Calculate an approximation of a rational with custom rounding.

WARNING: This is a const function designed for convenient use at build time and will panic on overflow. Ensure that any inputs are sensible.

Multiply by another value, returning None in the case of an error.

Result will be rounded to the nearest representable value, rounding down if it is equidistant between two neighbours.

Multiply by another value with custom rounding, returning None in the case of an error.

Result will be rounded to the nearest representable value, rounding down if it is equidistant between two neighbours.

Divide by another value, returning None in the case of an error.

Result will be rounded to the nearest representable value, rounding down if it is equidistant between two neighbours.

Divide by another value with custom rounding, returning None in the case of an error.

Result will be rounded to the nearest representable value, rounding down if it is equidistant between two neighbours.

Trait Implementations

The resulting type after applying the + operator.
Performs the + operation. Read more
Returns the smallest finite number this type can represent
Returns the largest finite number this type can represent
Adds two numbers, checking for overflow. If overflow happens, None is returned. Read more
Divides two numbers, checking for underflow, overflow and division by zero. If any of that happens, None is returned. Read more
Multiplies two numbers, checking for underflow or overflow. If underflow or overflow happens, None is returned. Read more
Subtracts two numbers, checking for underflow. If underflow happens, None is returned. Read more
Returns a copy of the value. Read more
Performs copy-assignment from source. Read more
A compact-encodable type that should be used as the encoding.
Returns the compact-encodable type.
Decode Self from the compact-decoded type.
Formats the value using the given formatter. Read more
Attempt to deserialise the value from input.
Attempt to skip the encoded value from input. Read more
Returns the fixed encoded size of the type. Read more
Returns the “default value” for a type. Read more
Deserialize this value from the given Serde deserializer. Read more
Formats the value using the given formatter. Read more
The resulting type after applying the / operator.
Performs the / operation. Read more
Convert self to a slice and append it to the destination.
Convert self to an owned vector.
Convert self to a slice and then invoke the given closure with it.
If possible give a hint of expected size of the encoding. Read more
Calculates the encoded size. Read more
The underlying data type used for this fixed point number.
Precision of this fixed point implementation. It should be a power of 10.
Indicates if this fixed point implementation is signed or not.
Builds this type from an integer number.
Consumes self and returns the inner raw value.
Precision of this fixed point implementation.
Creates self from an integer number int. Read more
Creates self from an integer number int. Read more
Creates self from a rational number. Equal to n / d. Read more
Creates self from a rational number. Equal to n / d. Read more
Checked multiplication for integer type N. Equal to self * n. Read more
Saturating multiplication for integer type N. Equal to self * n. Read more
Checked division for integer type N. Equal to self / d. Read more
Saturating division for integer type N. Equal to self / d. Read more
Saturating multiplication for integer type N, adding the result back. Equal to self * n + n. Read more
Saturating absolute value. Read more
Takes the reciprocal (inverse). Equal to 1 / self. Read more
Checks if the number is one.
Returns true if self is positive and false if the number is zero or negative.
Returns true if self is negative and false if the number is zero or positive.
Returns the integer part.
Returns the fractional part. Read more
Returns the smallest integer greater than or equal to a number. Read more
Returns the largest integer less than or equal to a number. Read more
Returns the number rounded to the nearest integer. Rounds half-way cases away from 0.0. Read more
Converts to this type from the input type.
Converts to this type from the input type.
Converts to this type from the input type.
Converts to this type from the input type.
The associated error which can be returned from parsing.
Parses a string s to return a value of this type. Read more
Upper bound, in bytes, of the maximum encoded size of this item.
The resulting type after applying the * operator.
Performs the * operation. Read more
The resulting type after applying the - operator.
Performs the unary - operation. Read more
Returns the multiplicative identity element of Self, 1. Read more
Sets self to the multiplicative identity element of Self, 1.
Returns true if self is equal to the multiplicative identity. Read more
This method returns an Ordering between self and other. Read more
Compares and returns the maximum of two values. Read more
Compares and returns the minimum of two values. Read more
Restrict a value to a certain interval. Read more
This method tests for self and other values to be equal, and is used by ==. Read more
This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason. Read more
This method returns an ordering between self and other values if one exists. Read more
This method tests less than (for self and other) and is used by the < operator. Read more
This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
This method tests greater than (for self and other) and is used by the > operator. Read more
This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
Saturating addition. Compute self + rhs, saturating at the numeric bounds instead of overflowing. Read more
Saturating subtraction. Compute self - rhs, saturating at the numeric bounds instead of overflowing. Read more
Saturating multiply. Compute self * rhs, saturating at the numeric bounds instead of overflowing. Read more
Saturating exponentiation. Compute self.pow(exp), saturating at the numeric bounds instead of overflowing. Read more
Increment self by one, saturating.
Decrement self by one, saturating at zero.
Increment self by some amount, saturating.
Decrement self by some amount, saturating at zero.
Serialize this value into the given Serde serializer. Read more
The resulting type after applying the - operator.
Performs the - operation. Read more
The type identifying for which type info is provided. Read more
Returns the static type identifier for Self.
Returns the additive identity element of Self, 0. Read more
Returns true if self is equal to the additive identity.
Sets self to the additive identity element of Self, 0.

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more
Immutably borrows from an owned value. Read more
Mutably borrows from an owned value. Read more
Decode Self and consume all of the given input data. Read more
Decode Self and consume all of the given input data. Read more
Decode Self with the given maximum recursion depth and advance input by the number of bytes consumed. Read more

Returns the argument unchanged.

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Return an encoding of Self prepended by given slice.
Returns the smallest finite number this type can represent
Convert from a value of T into an equivalent instance of Self. Read more
Consume self to return an equivalent value of T. Read more
Compare if self is threshold greater or less than other.
The resulting type after obtaining ownership.
Creates owned data from borrowed data, usually by cloning. Read more
Uses borrowed data to replace owned data, usually by cloning. Read more
Converts the given value to a String. Read more
The type returned in the event of a conversion error.
Performs the conversion.
The type returned in the event of a conversion error.
Performs the conversion.
Convert from a value of T into an equivalent instance of Self.
Consume self to return an equivalent value of T.
Returns the largest finite number this type can represent