Trait surge_wavetable::imports::imports::imports::imports::Num [−][src]
pub trait Num: PartialEq<Self> + Zero + One + NumOps<Self, Self> {
type FromStrRadixErr;
fn from_str_radix(
str: &str,
radix: u32
) -> Result<Self, Self::FromStrRadixErr>;
}
Expand description
The base trait for numeric types, covering 0
and 1
values,
comparisons, basic numeric operations, and string conversion.
Associated Types
type FromStrRadixErr
Required methods
fn from_str_radix(str: &str, radix: u32) -> Result<Self, Self::FromStrRadixErr>
fn from_str_radix(str: &str, radix: u32) -> Result<Self, Self::FromStrRadixErr>
Convert from a string and radix (typically 2..=36
).
Examples
use num_traits::Num;
let result = <i32 as Num>::from_str_radix("27", 10);
assert_eq!(result, Ok(27));
let result = <i32 as Num>::from_str_radix("foo", 10);
assert!(result.is_err());
Supported radices
The exact range of supported radices is at the discretion of each type implementation. For
primitive integers, this is implemented by the inherent from_str_radix
methods in the
standard library, which panic if the radix is not in the range from 2 to 36. The
implementation in this crate for primitive floats is similar.
For third-party types, it is suggested that implementations should follow suit and at least
accept 2..=36
without panicking, but an Err
may be returned for any unsupported radix.
It’s possible that a type might not even support the common radix 10, nor any, if string
parsing doesn’t make sense for that type.
Implementations on Foreign Types
type FromStrRadixErr = ParseIntError
type FromStrRadixErr = ParseIntError
type FromStrRadixErr = ParseIntError
type FromStrRadixErr = ParseIntError
type FromStrRadixErr = ParseIntError
type FromStrRadixErr = ParseFloatError
type FromStrRadixErr = ParseIntError
type FromStrRadixErr = ParseIntError
type FromStrRadixErr = ParseIntError
type FromStrRadixErr = ParseIntError
type FromStrRadixErr = ParseIntError
impl<T> Num for Wrapping<T> where
T: Num,
Wrapping<T>: Div<Wrapping<T>>,
Wrapping<T>: Rem<Wrapping<T>>,
Wrapping<T>: Add<Wrapping<T>>,
Wrapping<T>: Sub<Wrapping<T>>,
Wrapping<T>: Mul<Wrapping<T>>,
<Wrapping<T> as Add<Wrapping<T>>>::Output == Wrapping<T>,
<Wrapping<T> as Sub<Wrapping<T>>>::Output == Wrapping<T>,
<Wrapping<T> as Mul<Wrapping<T>>>::Output == Wrapping<T>,
<Wrapping<T> as Div<Wrapping<T>>>::Output == Wrapping<T>,
<Wrapping<T> as Rem<Wrapping<T>>>::Output == Wrapping<T>,
impl<T> Num for Wrapping<T> where
T: Num,
Wrapping<T>: Div<Wrapping<T>>,
Wrapping<T>: Rem<Wrapping<T>>,
Wrapping<T>: Add<Wrapping<T>>,
Wrapping<T>: Sub<Wrapping<T>>,
Wrapping<T>: Mul<Wrapping<T>>,
<Wrapping<T> as Add<Wrapping<T>>>::Output == Wrapping<T>,
<Wrapping<T> as Sub<Wrapping<T>>>::Output == Wrapping<T>,
<Wrapping<T> as Mul<Wrapping<T>>>::Output == Wrapping<T>,
<Wrapping<T> as Div<Wrapping<T>>>::Output == Wrapping<T>,
<Wrapping<T> as Rem<Wrapping<T>>>::Output == Wrapping<T>,
type FromStrRadixErr = <T as Num>::FromStrRadixErr
pub fn from_str_radix(
str: &str,
radix: u32
) -> Result<Wrapping<T>, <Wrapping<T> as Num>::FromStrRadixErr>
type FromStrRadixErr = ParseIntError
type FromStrRadixErr = ParseIntError
type FromStrRadixErr = ParseFloatError
pub fn from_str_radix(
s: &str,
radix: u32
) -> Result<Complex<T>, <Complex<T> as Num>::FromStrRadixErr>
pub fn from_str_radix(
s: &str,
radix: u32
) -> Result<Complex<T>, <Complex<T> as Num>::FromStrRadixErr>
Parses a +/- bi
; ai +/- b
; a
; or bi
where a
and b
are of type T
type FromStrRadixErr = ParseComplexError<<T as Num>::FromStrRadixErr>
Creates and initializes a BigInt.
type FromStrRadixErr = ParseBigIntError
Creates and initializes a BigUint
.
type FromStrRadixErr = ParseBigIntError
Parses numer/denom
where the numbers are in base radix
.