Mojo trait
Roundable
The Roundable trait describes a type that defines a rounding operation.
Types that conform to Roundable will work with the builtin round
function. The round operation always returns the same type as the input.
For example:
@fieldwise_init
struct Complex(Roundable):
var re: Float64
var im: Float64
fn __round__(self) -> Self:
return Self(round(self.re), round(self.im))
fn __round__(self, ndigits: Int) -> Self:
return Self(round(self.re, ndigits), round(self.im, ndigits))Implemented traits
AnyType,
UnknownDestructibility
Aliases
__del__is_trivial
alias __del__is_trivial
A flag (often compiler generated) to indicate whether the implementation of __del__ is trivial.
The implementation of __del__ is considered to be trivial if:
- The struct has a compiler-generated trivial destructor and all its fields
have a trivial
__del__method.
In practice, it means that the __del__ can be considered as no-op.
Required methods
__round__
__round__(self: _Self) -> _Self
Get a rounded value for the type.
Returns:
_Self: The rounded value.
__round__(self: _Self, ndigits: Int) -> _Self
Get a rounded value for the type.
Args:
- ndigits (
Int): Number of digits after the decimal point.
Returns:
_Self: The rounded value.
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