From d7cb0b1bd24b6bbeb9c71629bd8576bb9eb6c6a7 Mon Sep 17 00:00:00 2001
From: Zeno Rogue <zeno@attnam.com>
Date: Sat, 12 Oct 2019 14:04:46 +0200
Subject: [PATCH] fixed some compiler issues

---
 crystal.cpp | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/crystal.cpp b/crystal.cpp
index 99479ad6..2c63102f 100644
--- a/crystal.cpp
+++ b/crystal.cpp
@@ -361,7 +361,7 @@ int fiftyrule(coord c) {
 bool is_bi(crystal_structure& cs, coord co);
 
 #if MAXMDIM >= 4
-using shifttable = array<coord, 8>;
+typedef array<coord, 8> shifttable;
 
 shifttable get_canonical(coord co) {
   shifttable res;
@@ -380,7 +380,7 @@ shifttable get_canonical(coord co) {
 #endif
 
 struct hrmap_crystal : hrmap_standard {
-  heptagon *getOrigin() { return get_heptagon_at(c0, S7); }
+  heptagon *getOrigin() override { return get_heptagon_at(c0, S7); }
 
   map<heptagon*, coord> hcoords;
   map<coord, heptagon*> heptagon_at;
@@ -463,11 +463,11 @@ struct hrmap_crystal : hrmap_standard {
 
   void build_east(int cid);
   
-  void verify() { }
+  void verify() override { }
   
   void prepare_east();
 
-  heptagon *create_step(heptagon *h, int d) {
+  heptagon *create_step(heptagon *h, int d) override {
     if(!hcoords.count(h)) {
       printf("not found\n");
       return NULL;