prevent a crash when entering '(0,0)' in Archimedean

2022-03-27 20:44:45 +02:00 · 2022-03-27 20:44:45 +02:00 · 36c71eb583
parent 8489550aed
commit 36c71eb583
1 changed files with 4 additions and 0 deletions
--- a/archimedean.cpp
+++ b/archimedean.cpp
@ -1439,6 +1439,10 @@ EX void show() {
 void archimedean_tiling::get_nom_denom(int& anom, int& adenom) {
  int nom = 2 - N, denom = 2;
  for(int f: faces) {
+    if(f == 0) {
+      /* prevent a crash */
+      anom = 1; adenom = 1; return;
+      }
    int g = gcd(denom, f);
    nom = (nom * f + denom) / g;
    denom = denom / g * f;