From c4af4b2a024636d43a499b0cbfe7e33fa5b77592 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=B6nke=20Ludwig?= <sludwig@rejectedsoftware.com>
Date: Mon, 1 Oct 2018 21:54:29 +0200
Subject: [PATCH] Fix WindowsPath.bySegment of an empty path returning a bogus
 empty segment.

---
 source/vibe/core/path.d | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/source/vibe/core/path.d b/source/vibe/core/path.d
index b98b89b..43e91ab 100644
--- a/source/vibe/core/path.d
+++ b/source/vibe/core/path.d
@@ -332,7 +332,7 @@ struct GenericPath(F) {
 					m_path = m_path[ap.length .. $];
 					assert(!m_fronts.empty);
 				} else readFront();
-			}
+			} else assert(m_fronts.empty);
 		}
 
 		@property bool empty() const nothrow @nogc { return m_path.length == 0 && m_fronts.empty; }
@@ -897,7 +897,7 @@ struct WindowsPathFormat {
 	{
 		static struct R {
 			S[2] items;
-			size_t i;
+			size_t i = items.length;
 			this(S s) { i = 1; items[i] = s; }
 			this(S a, S b) { i = 0; items[0] = a; items[1] = b; }
 			@property ref S front() { return items[i]; }
@@ -1320,3 +1320,7 @@ struct InetPathFormat {
 		assert(decodeSegment!Segment("foo%20").equal([Segment("foo ")]));
 	}
 }
+
+unittest { // regression tests
+	assert(NativePath("").bySegment.empty);
+}