From c756496b710a962f632061b2e9c153488aeaefb7 Mon Sep 17 00:00:00 2001
From: Luis Moreno <morenoluisma@gmail.com>
Date: Mon, 9 Nov 2020 00:21:02 -0400
Subject: [PATCH] Fix clippy::len_without_is_empty

---
 src/lib.rs        | 1 -
 src/linalg/mod.rs | 5 +++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/lib.rs b/src/lib.rs
index 8c97bf7..4e87301 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -67,7 +67,6 @@
 #![allow(
     clippy::needless_range_loop,
     clippy::ptr_arg,
-    clippy::len_without_is_empty,
     clippy::map_entry,
     clippy::type_complexity,
     clippy::too_many_arguments,
diff --git a/src/linalg/mod.rs b/src/linalg/mod.rs
index fc9d6c9..896d718 100644
--- a/src/linalg/mod.rs
+++ b/src/linalg/mod.rs
@@ -76,6 +76,11 @@ pub trait BaseVector<T: RealNumber>: Clone + Debug {
     /// Get number of elevemnt in the vector
     fn len(&self) -> usize;
 
+    /// Returns true if the vector is empty.
+    fn is_empty(&self) -> bool {
+        self.len() == 0
+    }
+
     /// Return a vector with the elements of the one-dimensional array.
     fn to_vec(&self) -> Vec<T>;