From cc63624d6d7fda7bf00a94fd7a7a310c208d7ebe Mon Sep 17 00:00:00 2001
From: Sam Yates <halfflat@gmail.com>
Date: Tue, 18 May 2021 13:20:46 +0200
Subject: [PATCH] Check for empty region in ls::uniform. (#1530)
Fixes issue #1529.
---
arbor/morph/locset.cpp | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arbor/morph/locset.cpp b/arbor/morph/locset.cpp
index 2fc140e5..2e89ec2c 100644
--- a/arbor/morph/locset.cpp
+++ b/arbor/morph/locset.cpp
@@ -417,6 +417,9 @@ mlocation_list thingify_(const uniform_& u, const mprovider& p) {
mextent reg_extent = thingify(u.reg, p);
const mcable_list& reg_cables = reg_extent.cables();
+ // Only proceed if the region is non-empty.
+ if (reg_cables.empty()) return {};
+
std::vector<double> lengths_bounds;
auto lengths_part = util::make_partition(lengths_bounds,
util::transform_view(reg_cables, [&embed](const auto& c) {
--
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