From: Steinar H. Gunderson <sgunderson@bigfoot.com>
Date: Sun, 19 Feb 2012 19:16:19 +0000 (+0100)
Subject: Fix a segfault in certain nonsensical group configurations.
X-Git-Url: https://git.sesse.net/?p=ccbs;a=commitdiff_plain;h=22b778903cdf27ffc67ac70e8014e8b371984f79

Fix a segfault in certain nonsensical group configurations.
---

diff --git a/bigscreen/groupscreen.cpp b/bigscreen/groupscreen.cpp
index ab3ca54..1fee290 100644
--- a/bigscreen/groupscreen.cpp
+++ b/bigscreen/groupscreen.cpp
@@ -534,7 +534,11 @@ void GroupScreen::draw_next_up_player(unsigned char *buf, const Group &group, co
 				tmp.push_back(max_score[i]);
 			}
 			std::sort(tmp.begin(), tmp.end());
-			qualify_beat_worst_case = tmp[tmp.size() - group.num_qualifying];
+			if (tmp.size() > group.num_qualifying) {
+				qualify_beat_worst_case = tmp[tmp.size() - group.num_qualifying];
+			} else {
+				qualify_beat_worst_case = 0;
+			}
 
 			std::vector<unsigned> tmp2;
 			for (unsigned i = 0; i < group.players.size(); ++i) {
@@ -544,7 +548,11 @@ void GroupScreen::draw_next_up_player(unsigned char *buf, const Group &group, co
 			}
 
 			std::sort(tmp2.begin(), tmp2.end());
-			qualify_beat_best_case = tmp2[tmp2.size() - group.num_qualifying];
+			if (tmp2.size() > group.num_qualifying) {
+				qualify_beat_best_case = tmp2[tmp2.size() - group.num_qualifying];
+			} else {
+				qualify_beat_best_case = 0;
+			}
 		}
 
 		// print out the lines we can attain