From 1262edc2b471fe1ad971c0c8378fe551816dc800 Mon Sep 17 00:00:00 2001
From: Florian Weik <fweik@icp.uni-stuttgart.de>
Date: Sat, 8 Dec 2018 17:26:44 +0100
Subject: [PATCH] core: particle_data: Be less clever.

---
 src/core/particle_data.cpp | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/core/particle_data.cpp b/src/core/particle_data.cpp
index 9dc5d81475d..a7b705499d2 100644
--- a/src/core/particle_data.cpp
+++ b/src/core/particle_data.cpp
@@ -845,12 +845,12 @@ int remove_particle(int p_id) {
 
 namespace {
 std::pair<Cell *, size_t> find_particle(Particle *p, Cell *c) {
-  const auto n = (c->n > 0) ? std::distance(c->part, p) : -1;
-  if ((n >= 0) && (n < c->n) && ((c->part + n) == p)) {
-    return {c, n};
-  } else {
-    return {nullptr, 0};
+  for (int i = 0; i < c->n; ++i) {
+    if ((c->part + i) == p) {
+      return {c, i};
+    }
   }
+  return {nullptr, 0};
 }
 
 std::pair<Cell *, size_t> find_particle(Particle *p, CellPList cells) {