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use crate::math::ArgminDot;
use crate::math::ArgminWeightedDot;
impl<T, U, V> ArgminWeightedDot<T, U, V> for T
where
Self: ArgminDot<T, U>,
V: ArgminDot<T, T>,
{
#[inline]
fn weighted_dot(&self, w: &V, v: &T) -> U {
self.dot(&w.dot(v))
}
}
#[cfg(test)]
mod tests_vec {
use super::*;
use paste::item;
macro_rules! make_test {
($t:ty) => {
item! {
#[test]
fn [<test_ $t>]() {
let a = vec![2 as $t, 1 as $t, 2 as $t];
let b = vec![1 as $t, 2 as $t, 1 as $t];
let w = vec![
vec![8 as $t, 1 as $t, 6 as $t],
vec![3 as $t, 5 as $t, 7 as $t],
vec![4 as $t, 9 as $t, 2 as $t],
];
let res: $t = a.weighted_dot(&w, &b);
assert!((((res - 100 as $t) as f64).abs()) < std::f64::EPSILON);
}
}
};
}
make_test!(i8);
make_test!(u8);
make_test!(i16);
make_test!(u16);
make_test!(i32);
make_test!(u32);
make_test!(i64);
make_test!(u64);
make_test!(f32);
make_test!(f64);
}
#[cfg(feature = "ndarrayl")]
#[cfg(test)]
mod tests_ndarray {
use super::*;
use ndarray::array;
use paste::item;
macro_rules! make_test {
($t:ty) => {
item! {
#[test]
fn [<test_ $t>]() {
let a = array![2 as $t, 1 as $t, 2 as $t];
let b = array![1 as $t, 2 as $t, 1 as $t];
let w = array![
[8 as $t, 1 as $t, 6 as $t],
[3 as $t, 5 as $t, 7 as $t],
[4 as $t, 9 as $t, 2 as $t],
];
let res: $t = a.weighted_dot(&w, &b);
assert!((((res - 100 as $t) as f64).abs()) < std::f64::EPSILON);
}
}
};
}
make_test!(i8);
make_test!(u8);
make_test!(i16);
make_test!(u16);
make_test!(i32);
make_test!(u32);
make_test!(i64);
make_test!(u64);
make_test!(f32);
make_test!(f64);
}