Trait Num

Source
pub trait Num:
    PartialEq
    + Zero
    + One
    + NumOps {
    type FromStrRadixErr;

    // Required method
    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.

Required Associated Types§

Required Methods§

Source

fn from_str_radix(str: &str, radix: u32) -> Result<Self, Self::FromStrRadixErr>

Convert from a string and radix <= 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());

Dyn Compatibility§

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types§

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impl Num for f32

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impl Num for f64

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impl Num for i8

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impl Num for i16

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impl Num for i32

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impl Num for i64

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impl Num for i128

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impl Num for isize

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impl Num for u8

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impl Num for u16

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impl Num for u32

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impl Num for u64

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impl Num for u128

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impl Num for usize

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impl<T: Num> Num for Wrapping<T>
where Wrapping<T>: Add<Output = Wrapping<T>> + Sub<Output = Wrapping<T>> + Mul<Output = Wrapping<T>> + Div<Output = Wrapping<T>> + Rem<Output = Wrapping<T>>,

Implementors§