From 0f6ec6e6f5af48bfc9ccae0d3895dafc30361834 Mon Sep 17 00:00:00 2001
From: Zeno Rogue <zeno@attnam.com>
Date: Sat, 6 Jun 2020 18:42:43 +0200
Subject: [PATCH] arb:: do not double sublines

---
 arbitrile.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arbitrile.cpp b/arbitrile.cpp
index ccb2ac42..331426ce 100644
--- a/arbitrile.cpp
+++ b/arbitrile.cpp
@@ -402,7 +402,7 @@ EX void load(const string& fname, bool after_sliding IS(false)) {
       ep.force_eat(")");
       for(auto& sh: c.shapes) {
         for(int i=0; i<isize(sh.vertices); i++)
-        for(int j=0; j<isize(sh.vertices); j++)
+        for(int j=0; j<i; j++)
           if(j != i+1 && i != j+1 && !(i==0 && j == isize(sh.vertices)-1) && !(j==0 && i == isize(sh.vertices)-1) && i != j) {
             ld dist = hdist(sh.vertices[i], sh.vertices[j]);
             if(abs(dist - d) < eps) {