use crate::math::ArgminDot;
use crate::math::ArgminTranspose;
macro_rules! make_dot_vec {
($t:ty) => {
impl<'a> ArgminDot<Vec<$t>, $t> for Vec<$t> {
#[inline]
fn dot(&self, other: &Vec<$t>) -> $t {
self.iter().zip(other.iter()).map(|(a, b)| a * b).sum()
}
}
impl<'a> ArgminDot<$t, Vec<$t>> for Vec<$t> {
#[inline]
fn dot(&self, other: &$t) -> Vec<$t> {
self.iter().map(|a| a * other).collect()
}
}
impl<'a> ArgminDot<Vec<$t>, Vec<$t>> for $t {
#[inline]
fn dot(&self, other: &Vec<$t>) -> Vec<$t> {
other.iter().map(|a| a * self).collect()
}
}
impl ArgminDot<Vec<$t>, Vec<Vec<$t>>> for Vec<$t> {
#[inline]
fn dot(&self, other: &Vec<$t>) -> Vec<Vec<$t>> {
self.iter()
.map(|b| other.iter().map(|a| a * b).collect())
.collect()
}
}
impl ArgminDot<Vec<$t>, Vec<$t>> for Vec<Vec<$t>> {
#[inline]
fn dot(&self, other: &Vec<$t>) -> Vec<$t> {
(0..self.len()).map(|i| self[i].dot(other)).collect()
}
}
impl ArgminDot<Vec<Vec<$t>>, Vec<Vec<$t>>> for Vec<Vec<$t>> {
#[inline]
fn dot(&self, other: &Vec<Vec<$t>>) -> Vec<Vec<$t>> {
let other = other.clone().t();
let sr = self.len();
assert!(sr > 0);
let sc = self[0].len();
assert!(sc > 0);
let or = other.len();
assert!(or > 0);
let oc = other[0].len();
assert_eq!(sc, or);
assert!(oc > 0);
let mut v = Vec::with_capacity(oc);
unsafe {
v.set_len(oc);
}
let mut out = vec![v; sr];
for i in 0..sr {
assert_eq!(self[i].len(), sc);
for j in 0..oc {
out[i][j] = self[i].dot(&other[j]);
}
}
out
}
}
impl<'a> ArgminDot<$t, Vec<Vec<$t>>> for Vec<Vec<$t>> {
#[inline]
fn dot(&self, other: &$t) -> Vec<Vec<$t>> {
(0..self.len())
.map(|i| self[i].iter().map(|a| a * other).collect())
.collect()
}
}
impl<'a> ArgminDot<Vec<Vec<$t>>, Vec<Vec<$t>>> for $t {
#[inline]
fn dot(&self, other: &Vec<Vec<$t>>) -> Vec<Vec<$t>> {
(0..other.len())
.map(|i| other[i].iter().map(|a| a * self).collect())
.collect()
}
}
};
}
make_dot_vec!(f32);
make_dot_vec!(f64);
make_dot_vec!(i8);
make_dot_vec!(i16);
make_dot_vec!(i32);
make_dot_vec!(i64);
make_dot_vec!(u8);
make_dot_vec!(u16);
make_dot_vec!(u32);
make_dot_vec!(u64);
make_dot_vec!(isize);
make_dot_vec!(usize);
#[cfg(test)]
mod tests {
use super::*;
use paste::item;
macro_rules! make_test {
($t:ty) => {
item! {
#[test]
fn [<test_vec_vec_ $t>]() {
let a = vec![1 as $t, 2 as $t, 3 as $t];
let b = vec![4 as $t, 5 as $t, 6 as $t];
let res: $t = a.dot(&b);
assert!((((res - 32 as $t) as f64).abs()) < std::f64::EPSILON);
}
}
item! {
#[test]
fn [<test_vec_scalar_ $t>]() {
let a = vec![1 as $t, 2 as $t, 3 as $t];
let b = 2 as $t;
let product = a.dot(&b);
let res = vec![2 as $t, 4 as $t, 6 as $t];
for i in 0..3 {
assert!((((res[i] - product[i]) as f64).abs()) < std::f64::EPSILON);
}
}
}
item! {
#[test]
fn [<test_scalar_vec_ $t>]() {
let a = vec![1 as $t, 2 as $t, 3 as $t];
let b = 2 as $t;
let product = b.dot(&a);
let res = vec![2 as $t, 4 as $t, 6 as $t];
for i in 0..3 {
assert!((((res[i] - product[i]) as f64).abs()) < std::f64::EPSILON);
}
}
}
item! {
#[test]
fn [<test_mat_vec_ $t>]() {
let a = vec![1 as $t, 2 as $t, 3 as $t];
let b = vec![4 as $t, 5 as $t, 6 as $t];
let res = vec![
vec![4 as $t, 5 as $t, 6 as $t],
vec![8 as $t, 10 as $t, 12 as $t],
vec![12 as $t, 15 as $t, 18 as $t]
];
let product: Vec<Vec<$t>> = a.dot(&b);
for i in 0..3 {
for j in 0..3 {
assert!((((res[i][j] - product[i][j]) as f64).abs()) < std::f64::EPSILON);
}
}
}
}
item! {
#[test]
fn [<test_mat_vec_2_ $t>]() {
let a = vec![
vec![1 as $t, 2 as $t, 3 as $t],
vec![4 as $t, 5 as $t, 6 as $t],
vec![7 as $t, 8 as $t, 9 as $t]
];
let b = vec![1 as $t, 2 as $t, 3 as $t];
let res = vec![14 as $t, 32 as $t, 50 as $t];
let product = a.dot(&b);
for i in 0..3 {
assert!((((res[i] - product[i]) as f64).abs()) < std::f64::EPSILON);
}
}
}
item! {
#[test]
fn [<test_mat_mat_ $t>]() {
let a = vec![
vec![1 as $t, 2 as $t, 3 as $t],
vec![4 as $t, 5 as $t, 6 as $t],
vec![3 as $t, 2 as $t, 1 as $t]
];
let b = vec![
vec![3 as $t, 2 as $t, 1 as $t],
vec![6 as $t, 5 as $t, 4 as $t],
vec![2 as $t, 4 as $t, 3 as $t]
];
let res = vec![
vec![21 as $t, 24 as $t, 18 as $t],
vec![54 as $t, 57 as $t, 42 as $t],
vec![23 as $t, 20 as $t, 14 as $t]
];
let product = a.dot(&b);
for i in 0..3 {
for j in 0..3 {
assert!((((res[i][j] - product[i][j]) as f64).abs()) < std::f64::EPSILON);
}
}
}
}
item! {
#[test]
#[should_panic]
fn [<test_mat_mat_panic_1_ $t>]() {
let a = vec![];
let b = vec![
vec![3 as $t, 2 as $t, 1 as $t],
vec![6 as $t, 5 as $t, 4 as $t],
vec![2 as $t, 4 as $t, 3 as $t]
];
a.dot(&b);
}
}
item! {
#[test]
#[should_panic]
fn [<test_mat_mat_panic_2_ $t>]() {
let a: Vec<Vec<$t>> = vec![];
let b = vec![
vec![3 as $t, 2 as $t, 1 as $t],
vec![6 as $t, 5 as $t, 4 as $t],
vec![2 as $t, 4 as $t, 3 as $t]
];
b.dot(&a);
}
}
item! {
#[test]
#[should_panic]
fn [<test_mat_mat_panic_3_ $t>]() {
let a = vec![
vec![1 as $t, 2 as $t],
vec![4 as $t, 5 as $t],
vec![3 as $t, 2 as $t]
];
let b = vec![
vec![3 as $t, 2 as $t, 1 as $t],
vec![6 as $t, 5 as $t, 4 as $t],
vec![2 as $t, 4 as $t, 3 as $t]
];
a.dot(&b);
}
}
item! {
#[test]
#[should_panic]
fn [<test_mat_mat_panic_4_ $t>]() {
let a = vec![
vec![1 as $t, 2 as $t, 3 as $t],
vec![4 as $t, 5 as $t, 6 as $t],
vec![3 as $t, 2 as $t, 1 as $t]
];
let b = vec![
vec![3 as $t, 2 as $t],
vec![6 as $t, 5 as $t],
vec![3 as $t, 2 as $t]
];
a.dot(&b);
}
}
item! {
#[test]
#[should_panic]
fn [<test_mat_mat_panic_5_ $t>]() {
let a = vec![
vec![1 as $t, 2 as $t, 3 as $t],
vec![4 as $t, 5 as $t, 6 as $t],
vec![3 as $t, 2 as $t, 1 as $t]
];
let b = vec![
vec![3 as $t, 2 as $t, 1 as $t],
vec![6 as $t, 5 as $t, 4 as $t],
vec![2 as $t, 3 as $t]
];
a.dot(&b);
}
}
item! {
#[test]
#[should_panic]
fn [<test_mat_mat_panic_6_ $t>]() {
let a = vec![
vec![1 as $t, 2 as $t, 3 as $t],
vec![4 as $t, 5 as $t],
vec![3 as $t, 2 as $t, 1 as $t]
];
let b = vec![
vec![3 as $t, 2 as $t, 1 as $t],
vec![6 as $t, 5 as $t, 4 as $t],
vec![2 as $t, 4 as $t, 3 as $t]
];
a.dot(&b);
}
}
item! {
#[test]
fn [<test_mat_primitive_ $t>]() {
let a = vec![
vec![1 as $t, 2 as $t, 3 as $t],
vec![4 as $t, 5 as $t, 6 as $t],
vec![3 as $t, 2 as $t, 1 as $t]
];
let res = vec![
vec![2 as $t, 4 as $t, 6 as $t],
vec![8 as $t, 10 as $t, 12 as $t],
vec![6 as $t, 4 as $t, 2 as $t]
];
let product = a.dot(&(2 as $t));
for i in 0..3 {
for j in 0..3 {
assert!((((res[i][j] - product[i][j]) as f64).abs()) < std::f64::EPSILON);
}
}
}
}
item! {
#[test]
fn [<test_primitive_mat_ $t>]() {
let a = vec![
vec![1 as $t, 2 as $t, 3 as $t],
vec![4 as $t, 5 as $t, 6 as $t],
vec![3 as $t, 2 as $t, 1 as $t]
];
let res = vec![
vec![2 as $t, 4 as $t, 6 as $t],
vec![8 as $t, 10 as $t, 12 as $t],
vec![6 as $t, 4 as $t, 2 as $t]
];
let product = (2 as $t).dot(&a);
for i in 0..3 {
for j in 0..3 {
assert!((((res[i][j] - product[i][j]) as f64).abs()) < std::f64::EPSILON);
}
}
}
}
};
}
make_test!(isize);
make_test!(usize);
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);
}