num_traits::cast

Trait AsPrimitive

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pub trait AsPrimitive<T>: 'static + Copy
where T: 'static + Copy,
{ // Required method fn as_(self) -> T; }
Expand description

A generic interface for casting between machine scalars with the as operator, which admits narrowing and precision loss. Implementers of this trait AsPrimitive should behave like a primitive numeric type (e.g. a newtype around another primitive), and the intended conversion must never fail.

§Examples

let three: i32 = (3.14159265f32).as_();
assert_eq!(three, 3);

§Safety

In Rust versions before 1.45.0, some uses of the as operator were not entirely safe. In particular, it was undefined behavior if a truncated floating point value could not fit in the target integer type (#10184).

let x: u8 = (1.04E+17).as_(); // UB

Required Methods§

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fn as_(self) -> T

Convert a value to another, using the as operator.

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.

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impl AsPrimitive<char> for char

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fn as_(self) -> char

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impl AsPrimitive<char> for u8

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fn as_(self) -> char

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impl AsPrimitive<f32> for f32

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fn as_(self) -> f32

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impl AsPrimitive<f32> for f64

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fn as_(self) -> f32

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impl AsPrimitive<f32> for i8

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fn as_(self) -> f32

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impl AsPrimitive<f32> for i16

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fn as_(self) -> f32

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impl AsPrimitive<f32> for i32

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fn as_(self) -> f32

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impl AsPrimitive<f32> for i64

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fn as_(self) -> f32

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impl AsPrimitive<f32> for i128

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fn as_(self) -> f32

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impl AsPrimitive<f32> for isize

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fn as_(self) -> f32

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impl AsPrimitive<f32> for u8

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fn as_(self) -> f32

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impl AsPrimitive<f32> for u16

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fn as_(self) -> f32

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impl AsPrimitive<f32> for u32

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fn as_(self) -> f32

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impl AsPrimitive<f32> for u64

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fn as_(self) -> f32

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impl AsPrimitive<f32> for u128

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fn as_(self) -> f32

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impl AsPrimitive<f32> for usize

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fn as_(self) -> f32

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impl AsPrimitive<f64> for f32

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fn as_(self) -> f64

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impl AsPrimitive<f64> for f64

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fn as_(self) -> f64

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impl AsPrimitive<f64> for i8

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fn as_(self) -> f64

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impl AsPrimitive<f64> for i16

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fn as_(self) -> f64

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impl AsPrimitive<f64> for i32

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fn as_(self) -> f64

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impl AsPrimitive<f64> for i64

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fn as_(self) -> f64

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impl AsPrimitive<f64> for i128

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fn as_(self) -> f64

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impl AsPrimitive<f64> for isize

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fn as_(self) -> f64

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impl AsPrimitive<f64> for u8

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fn as_(self) -> f64

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impl AsPrimitive<f64> for u16

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fn as_(self) -> f64

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impl AsPrimitive<f64> for u32

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fn as_(self) -> f64

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impl AsPrimitive<f64> for u64

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fn as_(self) -> f64

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impl AsPrimitive<f64> for u128

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fn as_(self) -> f64

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impl AsPrimitive<f64> for usize

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fn as_(self) -> f64

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impl AsPrimitive<i8> for bool

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fn as_(self) -> i8

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impl AsPrimitive<i8> for char

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fn as_(self) -> i8

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impl AsPrimitive<i8> for f32

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fn as_(self) -> i8

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impl AsPrimitive<i8> for f64

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fn as_(self) -> i8

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impl AsPrimitive<i8> for i8

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fn as_(self) -> i8

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impl AsPrimitive<i8> for i16

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fn as_(self) -> i8

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impl AsPrimitive<i8> for i32

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fn as_(self) -> i8

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impl AsPrimitive<i8> for i64

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fn as_(self) -> i8

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impl AsPrimitive<i8> for i128

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fn as_(self) -> i8

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impl AsPrimitive<i8> for isize

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fn as_(self) -> i8

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impl AsPrimitive<i8> for u8

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fn as_(self) -> i8

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impl AsPrimitive<i8> for u16

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fn as_(self) -> i8

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impl AsPrimitive<i8> for u32

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fn as_(self) -> i8

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impl AsPrimitive<i8> for u64

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fn as_(self) -> i8

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impl AsPrimitive<i8> for u128

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fn as_(self) -> i8

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impl AsPrimitive<i8> for usize

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fn as_(self) -> i8

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impl AsPrimitive<i16> for bool

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fn as_(self) -> i16

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impl AsPrimitive<i16> for char

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fn as_(self) -> i16

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impl AsPrimitive<i16> for f32

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fn as_(self) -> i16

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impl AsPrimitive<i16> for f64

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fn as_(self) -> i16

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impl AsPrimitive<i16> for i8

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fn as_(self) -> i16

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impl AsPrimitive<i16> for i16

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fn as_(self) -> i16

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impl AsPrimitive<i16> for i32

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fn as_(self) -> i16

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impl AsPrimitive<i16> for i64

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fn as_(self) -> i16

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impl AsPrimitive<i16> for i128

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fn as_(self) -> i16

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impl AsPrimitive<i16> for isize

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fn as_(self) -> i16

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impl AsPrimitive<i16> for u8

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fn as_(self) -> i16

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impl AsPrimitive<i16> for u16

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fn as_(self) -> i16

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impl AsPrimitive<i16> for u32

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fn as_(self) -> i16

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impl AsPrimitive<i16> for u64

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fn as_(self) -> i16

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impl AsPrimitive<i16> for u128

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fn as_(self) -> i16

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impl AsPrimitive<i16> for usize

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fn as_(self) -> i16

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impl AsPrimitive<i32> for bool

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fn as_(self) -> i32

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impl AsPrimitive<i32> for char

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fn as_(self) -> i32

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impl AsPrimitive<i32> for f32

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fn as_(self) -> i32

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impl AsPrimitive<i32> for f64

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fn as_(self) -> i32

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impl AsPrimitive<i32> for i8

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fn as_(self) -> i32

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impl AsPrimitive<i32> for i16

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fn as_(self) -> i32

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impl AsPrimitive<i32> for i32

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fn as_(self) -> i32

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impl AsPrimitive<i32> for i64

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fn as_(self) -> i32

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impl AsPrimitive<i32> for i128

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fn as_(self) -> i32

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impl AsPrimitive<i32> for isize

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fn as_(self) -> i32

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impl AsPrimitive<i32> for u8

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fn as_(self) -> i32

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impl AsPrimitive<i32> for u16

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fn as_(self) -> i32

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impl AsPrimitive<i32> for u32

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fn as_(self) -> i32

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impl AsPrimitive<i32> for u64

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fn as_(self) -> i32

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impl AsPrimitive<i32> for u128

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fn as_(self) -> i32

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impl AsPrimitive<i32> for usize

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fn as_(self) -> i32

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impl AsPrimitive<i64> for bool

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fn as_(self) -> i64

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impl AsPrimitive<i64> for char

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fn as_(self) -> i64

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impl AsPrimitive<i64> for f32

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fn as_(self) -> i64

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impl AsPrimitive<i64> for f64

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fn as_(self) -> i64

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impl AsPrimitive<i64> for i8

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fn as_(self) -> i64

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impl AsPrimitive<i64> for i16

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fn as_(self) -> i64

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impl AsPrimitive<i64> for i32

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fn as_(self) -> i64

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impl AsPrimitive<i64> for i64

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fn as_(self) -> i64

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impl AsPrimitive<i64> for i128

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fn as_(self) -> i64

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impl AsPrimitive<i64> for isize

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fn as_(self) -> i64

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impl AsPrimitive<i64> for u8

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fn as_(self) -> i64

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impl AsPrimitive<i64> for u16

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fn as_(self) -> i64

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impl AsPrimitive<i64> for u32

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fn as_(self) -> i64

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impl AsPrimitive<i64> for u64

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fn as_(self) -> i64

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impl AsPrimitive<i64> for u128

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fn as_(self) -> i64

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impl AsPrimitive<i64> for usize

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fn as_(self) -> i64

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impl AsPrimitive<i128> for bool

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fn as_(self) -> i128

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impl AsPrimitive<i128> for char

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fn as_(self) -> i128

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impl AsPrimitive<i128> for f32

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fn as_(self) -> i128

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impl AsPrimitive<i128> for f64

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fn as_(self) -> i128

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impl AsPrimitive<i128> for i8

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fn as_(self) -> i128

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impl AsPrimitive<i128> for i16

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fn as_(self) -> i128

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impl AsPrimitive<i128> for i32

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fn as_(self) -> i128

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impl AsPrimitive<i128> for i64

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fn as_(self) -> i128

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impl AsPrimitive<i128> for i128

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fn as_(self) -> i128

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impl AsPrimitive<i128> for isize

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fn as_(self) -> i128

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impl AsPrimitive<i128> for u8

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fn as_(self) -> i128

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impl AsPrimitive<i128> for u16

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fn as_(self) -> i128

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impl AsPrimitive<i128> for u32

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fn as_(self) -> i128

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impl AsPrimitive<i128> for u64

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fn as_(self) -> i128

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impl AsPrimitive<i128> for u128

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fn as_(self) -> i128

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impl AsPrimitive<i128> for usize

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fn as_(self) -> i128

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impl AsPrimitive<isize> for bool

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fn as_(self) -> isize

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impl AsPrimitive<isize> for char

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fn as_(self) -> isize

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impl AsPrimitive<isize> for f32

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fn as_(self) -> isize

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impl AsPrimitive<isize> for f64

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fn as_(self) -> isize

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impl AsPrimitive<isize> for i8

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fn as_(self) -> isize

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impl AsPrimitive<isize> for i16

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fn as_(self) -> isize

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impl AsPrimitive<isize> for i32

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fn as_(self) -> isize

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impl AsPrimitive<isize> for i64

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fn as_(self) -> isize

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impl AsPrimitive<isize> for i128

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fn as_(self) -> isize

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impl AsPrimitive<isize> for isize

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fn as_(self) -> isize

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impl AsPrimitive<isize> for u8

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fn as_(self) -> isize

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impl AsPrimitive<isize> for u16

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fn as_(self) -> isize

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impl AsPrimitive<isize> for u32

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fn as_(self) -> isize

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impl AsPrimitive<isize> for u64

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fn as_(self) -> isize

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impl AsPrimitive<isize> for u128

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fn as_(self) -> isize

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impl AsPrimitive<isize> for usize

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fn as_(self) -> isize

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impl AsPrimitive<u8> for bool

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fn as_(self) -> u8

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impl AsPrimitive<u8> for char

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fn as_(self) -> u8

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impl AsPrimitive<u8> for f32

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fn as_(self) -> u8

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impl AsPrimitive<u8> for f64

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fn as_(self) -> u8

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impl AsPrimitive<u8> for i8

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fn as_(self) -> u8

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impl AsPrimitive<u8> for i16

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fn as_(self) -> u8

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impl AsPrimitive<u8> for i32

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fn as_(self) -> u8

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impl AsPrimitive<u8> for i64

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fn as_(self) -> u8

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impl AsPrimitive<u8> for i128

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fn as_(self) -> u8

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impl AsPrimitive<u8> for isize

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fn as_(self) -> u8

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impl AsPrimitive<u8> for u8

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fn as_(self) -> u8

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impl AsPrimitive<u8> for u16

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fn as_(self) -> u8

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impl AsPrimitive<u8> for u32

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fn as_(self) -> u8

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impl AsPrimitive<u8> for u64

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fn as_(self) -> u8

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impl AsPrimitive<u8> for u128

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fn as_(self) -> u8

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impl AsPrimitive<u8> for usize

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fn as_(self) -> u8

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impl AsPrimitive<u16> for bool

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fn as_(self) -> u16

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impl AsPrimitive<u16> for char

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fn as_(self) -> u16

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impl AsPrimitive<u16> for f32

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fn as_(self) -> u16

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impl AsPrimitive<u16> for f64

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fn as_(self) -> u16

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impl AsPrimitive<u16> for i8

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fn as_(self) -> u16

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impl AsPrimitive<u16> for i16

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fn as_(self) -> u16

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impl AsPrimitive<u16> for i32

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fn as_(self) -> u16

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impl AsPrimitive<u16> for i64

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fn as_(self) -> u16

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impl AsPrimitive<u16> for i128

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fn as_(self) -> u16

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impl AsPrimitive<u16> for isize

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fn as_(self) -> u16

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impl AsPrimitive<u16> for u8

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fn as_(self) -> u16

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impl AsPrimitive<u16> for u16

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fn as_(self) -> u16

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impl AsPrimitive<u16> for u32

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fn as_(self) -> u16

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impl AsPrimitive<u16> for u64

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fn as_(self) -> u16

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impl AsPrimitive<u16> for u128

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fn as_(self) -> u16

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impl AsPrimitive<u16> for usize

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fn as_(self) -> u16

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impl AsPrimitive<u32> for bool

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fn as_(self) -> u32

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impl AsPrimitive<u32> for char

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fn as_(self) -> u32

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impl AsPrimitive<u32> for f32

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fn as_(self) -> u32

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impl AsPrimitive<u32> for f64

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fn as_(self) -> u32

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impl AsPrimitive<u32> for i8

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fn as_(self) -> u32

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impl AsPrimitive<u32> for i16

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fn as_(self) -> u32

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impl AsPrimitive<u32> for i32

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fn as_(self) -> u32

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impl AsPrimitive<u32> for i64

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fn as_(self) -> u32

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impl AsPrimitive<u32> for i128

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fn as_(self) -> u32

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impl AsPrimitive<u32> for isize

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fn as_(self) -> u32

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impl AsPrimitive<u32> for u8

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fn as_(self) -> u32

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impl AsPrimitive<u32> for u16

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fn as_(self) -> u32

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impl AsPrimitive<u32> for u32

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fn as_(self) -> u32

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impl AsPrimitive<u32> for u64

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fn as_(self) -> u32

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impl AsPrimitive<u32> for u128

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fn as_(self) -> u32

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impl AsPrimitive<u32> for usize

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fn as_(self) -> u32

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impl AsPrimitive<u64> for bool

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fn as_(self) -> u64

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impl AsPrimitive<u64> for char

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fn as_(self) -> u64

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impl AsPrimitive<u64> for f32

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fn as_(self) -> u64

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impl AsPrimitive<u64> for f64

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fn as_(self) -> u64

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impl AsPrimitive<u64> for i8

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fn as_(self) -> u64

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impl AsPrimitive<u64> for i16

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fn as_(self) -> u64

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impl AsPrimitive<u64> for i32

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fn as_(self) -> u64

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impl AsPrimitive<u64> for i64

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fn as_(self) -> u64

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impl AsPrimitive<u64> for i128

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fn as_(self) -> u64

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impl AsPrimitive<u64> for isize

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fn as_(self) -> u64

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impl AsPrimitive<u64> for u8

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fn as_(self) -> u64

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impl AsPrimitive<u64> for u16

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fn as_(self) -> u64

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impl AsPrimitive<u64> for u32

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fn as_(self) -> u64

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impl AsPrimitive<u64> for u64

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fn as_(self) -> u64

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impl AsPrimitive<u64> for u128

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fn as_(self) -> u64

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impl AsPrimitive<u64> for usize

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fn as_(self) -> u64

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impl AsPrimitive<u128> for bool

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fn as_(self) -> u128

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impl AsPrimitive<u128> for char

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fn as_(self) -> u128

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impl AsPrimitive<u128> for f32

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fn as_(self) -> u128

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impl AsPrimitive<u128> for f64

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fn as_(self) -> u128

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impl AsPrimitive<u128> for i8

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fn as_(self) -> u128

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impl AsPrimitive<u128> for i16

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fn as_(self) -> u128

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impl AsPrimitive<u128> for i32

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fn as_(self) -> u128

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impl AsPrimitive<u128> for i64

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fn as_(self) -> u128

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impl AsPrimitive<u128> for i128

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fn as_(self) -> u128

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impl AsPrimitive<u128> for isize

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fn as_(self) -> u128

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impl AsPrimitive<u128> for u8

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fn as_(self) -> u128

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impl AsPrimitive<u128> for u16

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fn as_(self) -> u128

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impl AsPrimitive<u128> for u32

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fn as_(self) -> u128

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impl AsPrimitive<u128> for u64

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fn as_(self) -> u128

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impl AsPrimitive<u128> for u128

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fn as_(self) -> u128

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impl AsPrimitive<u128> for usize

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fn as_(self) -> u128

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impl AsPrimitive<usize> for bool

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fn as_(self) -> usize

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impl AsPrimitive<usize> for char

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fn as_(self) -> usize

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impl AsPrimitive<usize> for f32

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fn as_(self) -> usize

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impl AsPrimitive<usize> for f64

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fn as_(self) -> usize

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impl AsPrimitive<usize> for i8

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fn as_(self) -> usize

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impl AsPrimitive<usize> for i16

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fn as_(self) -> usize

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impl AsPrimitive<usize> for i32

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fn as_(self) -> usize

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impl AsPrimitive<usize> for i64

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fn as_(self) -> usize

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impl AsPrimitive<usize> for i128

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fn as_(self) -> usize

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impl AsPrimitive<usize> for isize

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fn as_(self) -> usize

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impl AsPrimitive<usize> for u8

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fn as_(self) -> usize

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impl AsPrimitive<usize> for u16

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fn as_(self) -> usize

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impl AsPrimitive<usize> for u32

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fn as_(self) -> usize

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impl AsPrimitive<usize> for u64

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fn as_(self) -> usize

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impl AsPrimitive<usize> for u128

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fn as_(self) -> usize

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impl AsPrimitive<usize> for usize

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fn as_(self) -> usize

Implementors§