From a42f896351509219c8c9df0d6368f84b77a9a0d3 Mon Sep 17 00:00:00 2001
From: Dan Goodliffe <dan@randomdan.homeip.net>
Date: Thu, 28 Jul 2022 02:39:15 +0100
Subject: Don't pass potentially NULL PATH env to string_view

---
 slicer/tool/slicer.cpp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/slicer/tool/slicer.cpp b/slicer/tool/slicer.cpp
index 1a83519..a4439cb 100644
--- a/slicer/tool/slicer.cpp
+++ b/slicer/tool/slicer.cpp
@@ -29,7 +29,12 @@ defaultPostProcessor()
 	constexpr std::array<const std::pair<std::string_view, std::string_view>, 1> pps {{
 			{"clang-format", "-i"},
 	}};
-	const std::string_view path {getenv("PATH")};
+	const auto path {[]() -> std::string_view {
+		if (auto p = getenv("PATH")) {
+			return p;
+		}
+		return "";
+	}()};
 	const auto pathBegin = make_split_iterator(path, first_finder(":", boost::is_equal()));
 	for (const auto & [cmd, opts] : pps) {
 		for (auto p = pathBegin; p != decltype(pathBegin) {}; ++p) {
-- 
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