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// Copyright 2018-2020 argmin developers // // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or // http://apache.org/licenses/LICENSE-2.0> or the MIT license <LICENSE-MIT or // http://opensource.org/licenses/MIT>, at your option. This file may not be // copied, modified, or distributed except according to those terms. use crate::core::math::ArgminDot; use crate::core::math::ArgminTranspose; use num_complex::Complex; 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>> { // Would be more efficient if this wasn't necessary! 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); // assert_eq!(other[i].len(), oc); 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<$t>> { (0..other.len()) .map(|i| other[i].iter().map(|a| a * self).collect()) .collect() } } }; } make_dot_vec!(f32); make_dot_vec!(f64); make_dot_vec!(i8); make_dot_vec!(i16); make_dot_vec!(i32); make_dot_vec!(i64); make_dot_vec!(u8); make_dot_vec!(u16); make_dot_vec!(u32); make_dot_vec!(u64); make_dot_vec!(isize); make_dot_vec!(usize); make_dot_vec!(Complex<f32>); make_dot_vec!(Complex<f64>); make_dot_vec!(Complex<i8>); make_dot_vec!(Complex<i16>); make_dot_vec!(Complex<i32>); make_dot_vec!(Complex<i64>); make_dot_vec!(Complex<u8>); make_dot_vec!(Complex<u16>); make_dot_vec!(Complex<u32>); make_dot_vec!(Complex<u64>); make_dot_vec!(Complex<isize>); make_dot_vec!(Complex<usize>); #[cfg(test)] mod tests { use super::*; use paste::item; macro_rules! make_test { ($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); }