Trait ndarray_rand::rand_distr::num_traits::Num[−][src]

pub trait Num: PartialEq<Self> + Zero + One + NumOps<Self, Self> {
    type FromStrRadixErr;
    pub fn from_str_radix(
        str: &str, 
        radix: u32
    ) -> Result<Self, Self::FromStrRadixErr>;
}

The base trait for numeric types, covering 0 and 1 values, comparisons, basic numeric operations, and string conversion.

Associated Types

`type FromStrRadixErr`[src]

Loading content...

Required methods

`pub fn from_str_radix( str: &str, radix: u32 ) -> Result<Self, Self::FromStrRadixErr>`[src]

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.

Loading content...

Implementations on Foreign Types

`impl Num for u8`[src]

`type FromStrRadixErr = ParseIntError`

`pub fn from_str_radix(s: &str, radix: u32) -> Result<u8, ParseIntError>`[src]

impl<T> Num for Wrapping<T> where T: Num, Wrapping<T>: Mul<Wrapping<T>>, Wrapping<T>: Add<Wrapping<T>>, Wrapping<T>: Div<Wrapping<T>>, Wrapping<T>: Rem<Wrapping<T>>, Wrapping<T>: Sub<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>, [src]

`type FromStrRadixErr = <T as Num>::FromStrRadixErr`

`pub fn from_str_radix( str: &str, radix: u32 ) -> Result<Wrapping<T>, <Wrapping<T> as Num>::FromStrRadixErr>`[src]

`impl Num for isize`[src]

`type FromStrRadixErr = ParseIntError`

`pub fn from_str_radix(s: &str, radix: u32) -> Result<isize, ParseIntError>`[src]

`impl Num for u16`[src]

`type FromStrRadixErr = ParseIntError`

`pub fn from_str_radix(s: &str, radix: u32) -> Result<u16, ParseIntError>`[src]

`impl Num for f64`[src]

`type FromStrRadixErr = ParseFloatError`

`pub fn from_str_radix( src: &str, radix: u32 ) -> Result<f64, <f64 as Num>::FromStrRadixErr>`[src]

`impl Num for usize`[src]

`type FromStrRadixErr = ParseIntError`

`pub fn from_str_radix(s: &str, radix: u32) -> Result<usize, ParseIntError>`[src]

`impl Num for i128`[src]

`type FromStrRadixErr = ParseIntError`

`pub fn from_str_radix(s: &str, radix: u32) -> Result<i128, ParseIntError>`[src]

`impl Num for f32`[src]

`type FromStrRadixErr = ParseFloatError`

`pub fn from_str_radix( src: &str, radix: u32 ) -> Result<f32, <f32 as Num>::FromStrRadixErr>`[src]

`impl Num for i16`[src]

`type FromStrRadixErr = ParseIntError`

`pub fn from_str_radix(s: &str, radix: u32) -> Result<i16, ParseIntError>`[src]

`impl Num for u128`[src]

`type FromStrRadixErr = ParseIntError`

`pub fn from_str_radix(s: &str, radix: u32) -> Result<u128, ParseIntError>`[src]

`impl Num for u32`[src]

`type FromStrRadixErr = ParseIntError`

`pub fn from_str_radix(s: &str, radix: u32) -> Result<u32, ParseIntError>`[src]

`impl Num for i64`[src]

`type FromStrRadixErr = ParseIntError`

`pub fn from_str_radix(s: &str, radix: u32) -> Result<i64, ParseIntError>`[src]

`impl Num for i32`[src]

`type FromStrRadixErr = ParseIntError`

`pub fn from_str_radix(s: &str, radix: u32) -> Result<i32, ParseIntError>`[src]

`impl Num for i8`[src]

`type FromStrRadixErr = ParseIntError`

`pub fn from_str_radix(s: &str, radix: u32) -> Result<i8, ParseIntError>`[src]

`impl Num for u64`[src]

`type FromStrRadixErr = ParseIntError`

`pub fn from_str_radix(s: &str, radix: u32) -> Result<u64, ParseIntError>`[src]

`impl<T> Num for Complex<T> where T: Num + Clone,` [src]

`type FromStrRadixErr = ParseComplexError<<T as Num>::FromStrRadixErr>`

`pub fn from_str_radix( s: &str, radix: u32 ) -> Result<Complex<T>, <Complex<T> as Num>::FromStrRadixErr>`[src]

Parses a +/- bi; ai +/- b; a; or bi where a and b are of type T

Loading content...

Implementors

Loading content...