From 7f3611a5ed542f5436d61b9da39937b89fdf0065 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Per=20Nordl=C3=B6w?= <per.nordlow@gmail.com>
Date: Tue, 2 Sep 2014 14:14:51 +0200
Subject: [PATCH] Add empty check for haystack range r in skipOver()

Remove space
---
 std/algorithm.d | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/std/algorithm.d b/std/algorithm.d
index ec37d88a6..bc107b217 100644
--- a/std/algorithm.d
+++ b/std/algorithm.d
@@ -6164,7 +6164,7 @@ unchanged and return $(D false).
 bool skipOver(alias pred = "a == b", R, E)(ref R r, E e)
 if (is(typeof(binaryFun!pred(r.front, e))))
 {
-    if (!binaryFun!pred(r.front, e))
+    if (r.empty || !binaryFun!pred(r.front, e))
         return false;
     r.popFront();
     return true;
@@ -6183,6 +6183,9 @@ unittest {
     assert(r == ["abc", "def", "hij"]);
     assert(skipOver!((a, b) => a.equal(b))(r, e));
     assert(r == ["def", "hij"]);
+
+    auto s2 = "";
+    assert(!s2.skipOver('a'));
 }
 
 /* (Not yet documented.)