Struct opencv::core::Vec4

#[repr(C)]pub struct Vec4<T: ValidVecType>(pub [T; 4]);

docs.opencv.org

Implementations

impl<T: ValidVecType> Vec4<T>

pub fn all(v0: T) -> Self

Methods from Deref<Target = [T; 4]>

pub fn as_slice(&self) -> &[T]

🔬 This is a nightly-only experimental API. (array_methods)

Returns a slice containing the entire array. Equivalent to &s[..].

pub fn as_mut_slice(&mut self) -> &mut [T]

🔬 This is a nightly-only experimental API. (array_methods)

Returns a mutable slice containing the entire array. Equivalent to &mut s[..].

pub fn each_ref(&self) -> [&T; N]

🔬 This is a nightly-only experimental API. (array_methods)

Borrows each element and returns an array of references with the same size as self.

Example

#![feature(array_methods)]

let floats = [3.1, 2.7, -1.0];
let float_refs: [&f64; 3] = floats.each_ref();
assert_eq!(float_refs, [&3.1, &2.7, &-1.0]);

This method is particularly useful if combined with other methods, like map. This way, you can can avoid moving the original array if its elements are not Copy.

#![feature(array_methods, array_map)]

let strings = ["Ferris".to_string(), "♥".to_string(), "Rust".to_string()];
let is_ascii = strings.each_ref().map(|s| s.is_ascii());
assert_eq!(is_ascii, [true, false, true]);

// We can still access the original array: it has not been moved.
assert_eq!(strings.len(), 3);

pub fn each_mut(&mut self) -> [&mut T; N]

🔬 This is a nightly-only experimental API. (array_methods)

Borrows each element mutably and returns an array of mutable references with the same size as self.

Example

#![feature(array_methods)]

let mut floats = [3.1, 2.7, -1.0];
let float_refs: [&mut f64; 3] = floats.each_mut();
*float_refs[0] = 0.0;
assert_eq!(float_refs, [&mut 0.0, &mut 2.7, &mut -1.0]);
assert_eq!(floats, [0.0, 2.7, -1.0]);

Trait Implementations

impl<T: Clone + ValidVecType> Clone for Vec4<T>

fn clone(&self) -> Vec4<T>

Returns a copy of the value.

pub fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T: Copy + ValidVecType> Copy for Vec4<T>

impl DataType for Vec4<i8>

fn depth() -> i32

fn channels() -> i32

fn typ() -> i32

impl DataType for Vec4<u16>

fn depth() -> i32

fn channels() -> i32

fn typ() -> i32

impl<T: Debug + ValidVecType> Debug for Vec4<T>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<T: Default + ValidVecType> Default for Vec4<T>

fn default() -> Vec4<T>

Returns the "default value" for a type.

impl<T: ValidVecType> Deref for Vec4<T>

type Target = [T; 4]

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl<T: ValidVecType> DerefMut for Vec4<T>

fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.

impl<T: ValidVecType> From<[T; 4]> for Vec4<T>

fn from(s: [T; 4]) -> Self

Performs the conversion.

impl<T: PartialEq + ValidVecType> PartialEq<Vec4<T>> for Vec4<T>

fn eq(&self, other: &Vec4<T>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Vec4<T>) -> bool

This method tests for !=.

impl<T: PartialOrd + ValidVecType> PartialOrd<Vec4<T>> for Vec4<T>

fn partial_cmp(&self, other: &Vec4<T>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Vec4<T>) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Vec4<T>) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Vec4<T>) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Vec4<T>) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl<T: ValidVecType> StructuralPartialEq for Vec4<T>