From 9ac07d7b0db4a10cd4bc7a128dddbb23f0ff1565 Mon Sep 17 00:00:00 2001
From: bluss <bluss@users.noreply.github.com>
Date: Tue, 28 Nov 2017 20:29:18 +0100
Subject: [PATCH] API: Change Slice::step_by step to be multiplicative
 (cumulative)

---
 src/slice.rs | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/slice.rs b/src/slice.rs
index e8a394fb5..c3e8585a8 100644
--- a/src/slice.rs
+++ b/src/slice.rs
@@ -51,14 +51,15 @@ impl Slice {
         }
     }
 
-    /// Returns a new `Slice` with the given step size.
+    /// Create a new `Slice` with the given step size (multiplied with the
+    /// previous step size).
     ///
     /// `step` must be nonzero.
     /// (This method checks with a debug assertion that `step` is not zero.)
     #[inline]
     pub fn step_by(self, step: isize) -> Self {
         debug_assert_ne!(step, 0, "Slice::step_by: step must be nonzero");
-        Slice { step, ..self }
+        Slice { step: self.step * step, ..self }
     }
 }