From 2e42ebad7453fbdd506e3e1d4487689240523900 Mon Sep 17 00:00:00 2001
From: Anthony Scemama <scemama@irsamc.ups-tlse.fr>
Date: Fri, 20 Oct 2023 13:28:40 +0200
Subject: [PATCH] Simplified with if let

---
 src/matrix.rs | 25 +++++++++----------------
 1 file changed, 9 insertions(+), 16 deletions(-)

diff --git a/src/matrix.rs b/src/matrix.rs
index f85274d..ab2f7e3 100644
--- a/src/matrix.rs
+++ b/src/matrix.rs
@@ -188,19 +188,13 @@ impl<'a, T> Iterator for MatrixIter1DRow<'a, T> {
     type Item = &'a T;
 
     fn next(&mut self) -> Option<Self::Item> {
-        let v = self.iter.next();
-        match v {
-            Some(_) => v,
-            None => {
-                let new_row = self.row.next();
-                match new_row {
-                    None => None,
-                    Some(i) => {
-                        self.iter = self.mat.iter_row(i);
-                        self.iter.next()
-                    }
-                }
-            }
+        if let Some(v) = self.iter.next() {
+            Some(v)
+        } else if let Some(new_row) = self.row.next() {
+            self.iter = self.mat.iter_row(new_row);
+            self.iter.next()
+        } else {
+            None
         }
     }
 }
@@ -217,9 +211,8 @@ impl<'a, T> Iterator for MatrixIter1DRowMut<'a, T> {
     type Item = &'a mut T;
 
     fn next(&mut self) -> Option<Self::Item> {
-        let v = self.iter.next();
-        match v {
-            Some(_) => v,
+        if let v = self.iter.next() {
+            v,
             None => {
                 let new_row = self.row.next();
                 match new_row {