forked from M-Labs/nalgebra
173 lines
4.8 KiB
Rust
173 lines
4.8 KiB
Rust
use na::{DefaultAllocator};
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use aliases::TVec;
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use traits::{Number, Alloc, Dimension};
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/// Checks that all the vector components are `true`.
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///
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/// # Examples:
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///
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/// ```
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/// # use nalgebra_glm as glm;
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/// let vec = glm::vec2(true, false);
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/// assert_eq!(false, glm::all(&vec));
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///
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/// let vec = glm::vec2(true, true);
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/// assert_eq!(true, glm::all(&vec));
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/// ```
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///
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/// # See also:
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///
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/// * [`any`](fn.any.html)
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/// * [`not`](fn.not.html)
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pub fn all<D: Dimension>(v: &TVec<bool, D>) -> bool
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where DefaultAllocator: Alloc<bool, D> {
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v.iter().all(|x| *x)
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}
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/// Checks that at least one of the vector components is `true`.
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///
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/// # Examples:
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///
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/// ```
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/// # use nalgebra_glm as glm;
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/// let vec = glm::vec2(true, false);
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/// assert_eq!(true, glm::any(&vec));
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///
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/// let vec = glm::vec2(true, true);
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/// assert_eq!(true, glm::any(&vec));
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///
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/// let vec = glm::vec2(false, false);
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/// assert_eq!(false, glm::any(&vec));
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/// ```
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///
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/// # See also:
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///
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/// * [`all`](fn.all.html)
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/// * [`not`](fn.not.html)
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pub fn any<D: Dimension>(v: &TVec<bool, D>) -> bool
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where DefaultAllocator: Alloc<bool, D> {
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v.iter().any(|x| *x)
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}
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/// Component-wise equality comparison.
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///
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/// See also:
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///
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/// * [`equal`](fn.equal.html)
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/// * [`greater_than`](fn.greater_than.html)
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/// * [`greater_than_equal`](fn.greater_than_equal.html)
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/// * [`less_than`](fn.less_than.html)
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/// * [`less_than_equal`](fn.less_than_equal.html)
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/// * [`not`](fn.not.html)
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/// * [`not_equal`](fn.not_equal.html)
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pub fn equal<N: Number, D: Dimension>(x: &TVec<N, D>, y: &TVec<N, D>) -> TVec<bool, D>
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where DefaultAllocator: Alloc<N, D> {
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x.zip_map(y, |x, y| x == y)
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}
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/// Component-wise `>` comparison.
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///
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/// See also:
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///
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/// * [`equal`](fn.equal.html)
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/// * [`greater_than`](fn.greater_than.html)
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/// * [`greater_than_equal`](fn.greater_than_equal.html)
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/// * [`less_than`](fn.less_than.html)
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/// * [`less_than_equal`](fn.less_than_equal.html)
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/// * [`not`](fn.not.html)
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/// * [`not_equal`](fn.not_equal.html)
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pub fn greater_than<N: Number, D: Dimension>(x: &TVec<N, D>, y: &TVec<N, D>) -> TVec<bool, D>
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where DefaultAllocator: Alloc<N, D> {
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x.zip_map(y, |x, y| x > y)
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}
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/// Component-wise `>=` comparison.
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///
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/// See also:
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///
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/// * [`equal`](fn.equal.html)
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/// * [`greater_than`](fn.greater_than.html)
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/// * [`greater_than_equal`](fn.greater_than_equal.html)
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/// * [`less_than`](fn.less_than.html)
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/// * [`less_than_equal`](fn.less_than_equal.html)
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/// * [`not`](fn.not.html)
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/// * [`not_equal`](fn.not_equal.html)
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pub fn greater_than_equal<N: Number, D: Dimension>(x: &TVec<N, D>, y: &TVec<N, D>) -> TVec<bool, D>
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where DefaultAllocator: Alloc<N, D> {
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x.zip_map(y, |x, y| x >= y)
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}
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/// Component-wise `<` comparison.
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///
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/// See also:
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///
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/// * [`equal`](fn.equal.html)
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/// * [`greater_than`](fn.greater_than.html)
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/// * [`greater_than_equal`](fn.greater_than_equal.html)
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/// * [`less_than`](fn.less_than.html)
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/// * [`less_than_equal`](fn.less_than_equal.html)
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/// * [`not`](fn.not.html)
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/// * [`not_equal`](fn.not_equal.html)
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pub fn less_than<N: Number, D: Dimension>(x: &TVec<N, D>, y: &TVec<N, D>) -> TVec<bool, D>
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where DefaultAllocator: Alloc<N, D> {
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x.zip_map(y, |x, y| x < y)
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}
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/// Component-wise `>=` comparison.
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///
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/// See also:
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///
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/// * [`equal`](fn.equal.html)
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/// * [`greater_than`](fn.greater_than.html)
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/// * [`greater_than_equal`](fn.greater_than_equal.html)
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/// * [`less_than`](fn.less_than.html)
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/// * [`less_than_equal`](fn.less_than_equal.html)
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/// * [`not`](fn.not.html)
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/// * [`not_equal`](fn.not_equal.html)
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pub fn less_than_equal<N: Number, D: Dimension>(x: &TVec<N, D>, y: &TVec<N, D>) -> TVec<bool, D>
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where DefaultAllocator: Alloc<N, D> {
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x.zip_map(y, |x, y| x <= y)
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}
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/// Component-wise not `!`.
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///
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/// # Examples:
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///
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/// ```
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/// # use nalgebra_glm as glm;
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/// let vec = glm::vec2(true, false);
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/// assert_eq!(glm::vec2(false, true), glm::not(&vec));
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/// ```
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///
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/// See also:
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///
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/// * [`all`](fn.all.html)
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/// * [`any`](fn.any.html)
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/// * [`equal`](fn.equal.html)
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/// * [`greater_than`](fn.greater_than.html)
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/// * [`greater_than_equal`](fn.greater_than_equal.html)
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/// * [`less_than`](fn.less_than.html)
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/// * [`less_than_equal`](fn.less_than_equal.html)
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/// * [`not`](fn.not.html)
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/// * [`not_equal`](fn.not_equal.html)
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pub fn not<D: Dimension>(v: &TVec<bool, D>) -> TVec<bool, D>
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where DefaultAllocator: Alloc<bool, D> {
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v.map(|x| !x)
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}
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/// Component-wise not-equality `!=`.
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///
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/// See also:
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///
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/// * [`equal`](fn.equal.html)
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/// * [`greater_than`](fn.greater_than.html)
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/// * [`greater_than_equal`](fn.greater_than_equal.html)
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/// * [`less_than`](fn.less_than.html)
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/// * [`less_than_equal`](fn.less_than_equal.html)
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/// * [`not_equal`](fn.not_equal.html)
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pub fn not_equal<N: Number, D: Dimension>(x: &TVec<N, D>, y: &TVec<N, D>) -> TVec<bool, D>
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where DefaultAllocator: Alloc<N, D> {
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x.zip_map(y, |x, y| x != y)
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}
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