Trait FromPrimitive 

pub trait FromPrimitive: Sized {
    // Required methods
    fn from_isize(n: isize) -> Option<Self>;
    fn from_i8(n: i8) -> Option<Self>;
    fn from_i16(n: i16) -> Option<Self>;
    fn from_i32(n: i32) -> Option<Self>;
    fn from_i64(n: i64) -> Option<Self>;
    fn from_i128(n: i128) -> Option<Self>;
    fn from_usize(n: usize) -> Option<Self>;
    fn from_u8(n: u8) -> Option<Self>;
    fn from_u16(n: u16) -> Option<Self>;
    fn from_u32(n: u32) -> Option<Self>;
    fn from_u64(n: u64) -> Option<Self>;
    fn from_u128(n: u128) -> Option<Self>;
    fn from_f32(n: f32) -> Option<Self>;
    fn from_f64(n: f64) -> Option<Self>;
}

A generic trait for converting a number to a value.

A value can be represented by the target type when it lies within the range of scalars supported by the target type. For example, a negative integer cannot be represented by an unsigned integer type, and an i64 with a very high magnitude might not be convertible to an i32. On the other hand, conversions with possible precision loss or truncation are admitted, like an f32 with a decimal part to an integer type, or even a large f64 saturating to f32 infinity.

Required Methods

fn from_isize(n: isize) -> Option<Self>

Converts an isize to return an optional value of this type. If the value cannot be represented by this type, then None is returned.

fn from_i8(n: i8) -> Option<Self>

Converts an i8 to return an optional value of this type. If the value cannot be represented by this type, then None is returned.

fn from_i16(n: i16) -> Option<Self>

Converts an i16 to return an optional value of this type. If the value cannot be represented by this type, then None is returned.

fn from_i32(n: i32) -> Option<Self>

Converts an i32 to return an optional value of this type. If the value cannot be represented by this type, then None is returned.

fn from_i64(n: i64) -> Option<Self>

Converts an i64 to return an optional value of this type. If the value cannot be represented by this type, then None is returned.

fn from_i128(n: i128) -> Option<Self>

Converts an i128 to return an optional value of this type. If the value cannot be represented by this type, then None is returned.

fn from_usize(n: usize) -> Option<Self>

Converts a usize to return an optional value of this type. If the value cannot be represented by this type, then None is returned.

fn from_u8(n: u8) -> Option<Self>

Converts an u8 to return an optional value of this type. If the value cannot be represented by this type, then None is returned.

fn from_u16(n: u16) -> Option<Self>

Converts an u16 to return an optional value of this type. If the value cannot be represented by this type, then None is returned.

fn from_u32(n: u32) -> Option<Self>

Converts an u32 to return an optional value of this type. If the value cannot be represented by this type, then None is returned.

fn from_u64(n: u64) -> Option<Self>

Converts an u64 to return an optional value of this type. If the value cannot be represented by this type, then None is returned.

fn from_u128(n: u128) -> Option<Self>

Converts an u128 to return an optional value of this type. If the value cannot be represented by this type, then None is returned.

fn from_f32(n: f32) -> Option<Self>

Converts a f32 to return an optional value of this type. If the value cannot be represented by this type, then None is returned.

fn from_f64(n: f64) -> Option<Self>

Converts a f64 to return an optional value of this type. If the value cannot be represented by this type, then None is returned.

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

impl FromPrimitive for f32

fn from_isize(n: isize) -> Option<f32>

fn from_i8(n: i8) -> Option<f32>

fn from_i16(n: i16) -> Option<f32>

fn from_i32(n: i32) -> Option<f32>

fn from_i64(n: i64) -> Option<f32>

fn from_i128(n: i128) -> Option<f32>

fn from_usize(n: usize) -> Option<f32>

fn from_u8(n: u8) -> Option<f32>

fn from_u16(n: u16) -> Option<f32>

fn from_u32(n: u32) -> Option<f32>

fn from_u64(n: u64) -> Option<f32>

fn from_u128(n: u128) -> Option<f32>

fn from_f32(n: f32) -> Option<f32>

fn from_f64(n: f64) -> Option<f32>

impl FromPrimitive for f64

fn from_isize(n: isize) -> Option<f64>

fn from_i8(n: i8) -> Option<f64>

fn from_i16(n: i16) -> Option<f64>

fn from_i32(n: i32) -> Option<f64>

fn from_i64(n: i64) -> Option<f64>

fn from_i128(n: i128) -> Option<f64>

fn from_usize(n: usize) -> Option<f64>

fn from_u8(n: u8) -> Option<f64>

fn from_u16(n: u16) -> Option<f64>

fn from_u32(n: u32) -> Option<f64>

fn from_u64(n: u64) -> Option<f64>

fn from_u128(n: u128) -> Option<f64>

fn from_f32(n: f32) -> Option<f64>

fn from_f64(n: f64) -> Option<f64>

impl FromPrimitive for i8

fn from_isize(n: isize) -> Option<i8>

fn from_i8(n: i8) -> Option<i8>

fn from_i16(n: i16) -> Option<i8>

fn from_i32(n: i32) -> Option<i8>

fn from_i64(n: i64) -> Option<i8>

fn from_i128(n: i128) -> Option<i8>

fn from_usize(n: usize) -> Option<i8>

fn from_u8(n: u8) -> Option<i8>

fn from_u16(n: u16) -> Option<i8>

fn from_u32(n: u32) -> Option<i8>

fn from_u64(n: u64) -> Option<i8>

fn from_u128(n: u128) -> Option<i8>

fn from_f32(n: f32) -> Option<i8>

fn from_f64(n: f64) -> Option<i8>

impl FromPrimitive for i16

fn from_isize(n: isize) -> Option<i16>

fn from_i8(n: i8) -> Option<i16>

fn from_i16(n: i16) -> Option<i16>

fn from_i32(n: i32) -> Option<i16>

fn from_i64(n: i64) -> Option<i16>

fn from_i128(n: i128) -> Option<i16>

fn from_usize(n: usize) -> Option<i16>

fn from_u8(n: u8) -> Option<i16>

fn from_u16(n: u16) -> Option<i16>

fn from_u32(n: u32) -> Option<i16>

fn from_u64(n: u64) -> Option<i16>

fn from_u128(n: u128) -> Option<i16>

fn from_f32(n: f32) -> Option<i16>

fn from_f64(n: f64) -> Option<i16>

impl FromPrimitive for i32

fn from_isize(n: isize) -> Option<i32>

fn from_i8(n: i8) -> Option<i32>

fn from_i16(n: i16) -> Option<i32>

fn from_i32(n: i32) -> Option<i32>

fn from_i64(n: i64) -> Option<i32>

fn from_i128(n: i128) -> Option<i32>

fn from_usize(n: usize) -> Option<i32>

fn from_u8(n: u8) -> Option<i32>

fn from_u16(n: u16) -> Option<i32>

fn from_u32(n: u32) -> Option<i32>

fn from_u64(n: u64) -> Option<i32>

fn from_u128(n: u128) -> Option<i32>

fn from_f32(n: f32) -> Option<i32>

fn from_f64(n: f64) -> Option<i32>

impl FromPrimitive for i64

fn from_isize(n: isize) -> Option<i64>

fn from_i8(n: i8) -> Option<i64>

fn from_i16(n: i16) -> Option<i64>

fn from_i32(n: i32) -> Option<i64>

fn from_i64(n: i64) -> Option<i64>

fn from_i128(n: i128) -> Option<i64>

fn from_usize(n: usize) -> Option<i64>

fn from_u8(n: u8) -> Option<i64>

fn from_u16(n: u16) -> Option<i64>

fn from_u32(n: u32) -> Option<i64>

fn from_u64(n: u64) -> Option<i64>

fn from_u128(n: u128) -> Option<i64>

fn from_f32(n: f32) -> Option<i64>

fn from_f64(n: f64) -> Option<i64>

impl FromPrimitive for i128

fn from_isize(n: isize) -> Option<i128>

fn from_i8(n: i8) -> Option<i128>

fn from_i16(n: i16) -> Option<i128>

fn from_i32(n: i32) -> Option<i128>

fn from_i64(n: i64) -> Option<i128>

fn from_i128(n: i128) -> Option<i128>

fn from_usize(n: usize) -> Option<i128>

fn from_u8(n: u8) -> Option<i128>

fn from_u16(n: u16) -> Option<i128>

fn from_u32(n: u32) -> Option<i128>

fn from_u64(n: u64) -> Option<i128>

fn from_u128(n: u128) -> Option<i128>

fn from_f32(n: f32) -> Option<i128>

fn from_f64(n: f64) -> Option<i128>

impl FromPrimitive for isize

fn from_isize(n: isize) -> Option<isize>

fn from_i8(n: i8) -> Option<isize>

fn from_i16(n: i16) -> Option<isize>

fn from_i32(n: i32) -> Option<isize>

fn from_i64(n: i64) -> Option<isize>

fn from_i128(n: i128) -> Option<isize>

fn from_usize(n: usize) -> Option<isize>

fn from_u8(n: u8) -> Option<isize>

fn from_u16(n: u16) -> Option<isize>

fn from_u32(n: u32) -> Option<isize>

fn from_u64(n: u64) -> Option<isize>

fn from_u128(n: u128) -> Option<isize>

fn from_f32(n: f32) -> Option<isize>

fn from_f64(n: f64) -> Option<isize>

impl FromPrimitive for u8

fn from_isize(n: isize) -> Option<u8>

fn from_i8(n: i8) -> Option<u8>

fn from_i16(n: i16) -> Option<u8>

fn from_i32(n: i32) -> Option<u8>

fn from_i64(n: i64) -> Option<u8>

fn from_i128(n: i128) -> Option<u8>

fn from_usize(n: usize) -> Option<u8>

fn from_u8(n: u8) -> Option<u8>

fn from_u16(n: u16) -> Option<u8>

fn from_u32(n: u32) -> Option<u8>

fn from_u64(n: u64) -> Option<u8>

fn from_u128(n: u128) -> Option<u8>

fn from_f32(n: f32) -> Option<u8>

fn from_f64(n: f64) -> Option<u8>

impl FromPrimitive for u16

fn from_isize(n: isize) -> Option<u16>

fn from_i8(n: i8) -> Option<u16>

fn from_i16(n: i16) -> Option<u16>

fn from_i32(n: i32) -> Option<u16>

fn from_i64(n: i64) -> Option<u16>

fn from_i128(n: i128) -> Option<u16>

fn from_usize(n: usize) -> Option<u16>

fn from_u8(n: u8) -> Option<u16>

fn from_u16(n: u16) -> Option<u16>

fn from_u32(n: u32) -> Option<u16>

fn from_u64(n: u64) -> Option<u16>

fn from_u128(n: u128) -> Option<u16>

fn from_f32(n: f32) -> Option<u16>

fn from_f64(n: f64) -> Option<u16>

impl FromPrimitive for u32

fn from_isize(n: isize) -> Option<u32>

fn from_i8(n: i8) -> Option<u32>

fn from_i16(n: i16) -> Option<u32>

fn from_i32(n: i32) -> Option<u32>

fn from_i64(n: i64) -> Option<u32>

fn from_i128(n: i128) -> Option<u32>

fn from_usize(n: usize) -> Option<u32>

fn from_u8(n: u8) -> Option<u32>

fn from_u16(n: u16) -> Option<u32>

fn from_u32(n: u32) -> Option<u32>

fn from_u64(n: u64) -> Option<u32>

fn from_u128(n: u128) -> Option<u32>

fn from_f32(n: f32) -> Option<u32>

fn from_f64(n: f64) -> Option<u32>

impl FromPrimitive for u64

fn from_isize(n: isize) -> Option<u64>

fn from_i8(n: i8) -> Option<u64>

fn from_i16(n: i16) -> Option<u64>

fn from_i32(n: i32) -> Option<u64>

fn from_i64(n: i64) -> Option<u64>

fn from_i128(n: i128) -> Option<u64>

fn from_usize(n: usize) -> Option<u64>

fn from_u8(n: u8) -> Option<u64>

fn from_u16(n: u16) -> Option<u64>

fn from_u32(n: u32) -> Option<u64>

fn from_u64(n: u64) -> Option<u64>

fn from_u128(n: u128) -> Option<u64>

fn from_f32(n: f32) -> Option<u64>

fn from_f64(n: f64) -> Option<u64>

impl FromPrimitive for u128

fn from_isize(n: isize) -> Option<u128>

fn from_i8(n: i8) -> Option<u128>

fn from_i16(n: i16) -> Option<u128>

fn from_i32(n: i32) -> Option<u128>

fn from_i64(n: i64) -> Option<u128>

fn from_i128(n: i128) -> Option<u128>

fn from_usize(n: usize) -> Option<u128>

fn from_u8(n: u8) -> Option<u128>

fn from_u16(n: u16) -> Option<u128>

fn from_u32(n: u32) -> Option<u128>

fn from_u64(n: u64) -> Option<u128>

fn from_u128(n: u128) -> Option<u128>

fn from_f32(n: f32) -> Option<u128>

fn from_f64(n: f64) -> Option<u128>

impl FromPrimitive for usize

fn from_isize(n: isize) -> Option<usize>

fn from_i8(n: i8) -> Option<usize>

fn from_i16(n: i16) -> Option<usize>

fn from_i32(n: i32) -> Option<usize>

fn from_i64(n: i64) -> Option<usize>

fn from_i128(n: i128) -> Option<usize>

fn from_usize(n: usize) -> Option<usize>

fn from_u8(n: u8) -> Option<usize>

fn from_u16(n: u16) -> Option<usize>

fn from_u32(n: u32) -> Option<usize>

fn from_u64(n: u64) -> Option<usize>

fn from_u128(n: u128) -> Option<usize>

fn from_f32(n: f32) -> Option<usize>

fn from_f64(n: f64) -> Option<usize>

impl<T: FromPrimitive> FromPrimitive for Wrapping<T>

fn from_isize(n: isize) -> Option<Self>

fn from_i8(n: i8) -> Option<Self>

fn from_i16(n: i16) -> Option<Self>

fn from_i32(n: i32) -> Option<Self>

fn from_i64(n: i64) -> Option<Self>

fn from_i128(n: i128) -> Option<Self>

fn from_usize(n: usize) -> Option<Self>

fn from_u8(n: u8) -> Option<Self>

fn from_u16(n: u16) -> Option<Self>

fn from_u32(n: u32) -> Option<Self>

fn from_u64(n: u64) -> Option<Self>

fn from_u128(n: u128) -> Option<Self>

fn from_f32(n: f32) -> Option<Self>

fn from_f64(n: f64) -> Option<Self>

Implementors

impl FromPrimitive for Float106

impl<T: RealField + FromPrimitive> FromPrimitive for Complex<T>

impl<T: RealField + FromPrimitive> FromPrimitive for Octonion<T>

Implements the FromPrimitive trait for Octonion.

This allows conversion from various primitive integer and floating-point types into an Octonion. The converted value populates the scalar part (s) of the octonion, with all imaginary parts set to zero.

Each from_* method attempts to convert the given primitive value into the underlying real field type T and then constructs an Octonion from it.

impl<T: RealField + FromPrimitive> FromPrimitive for Quaternion<T>