From 8cabd04b757bf7bf48bf7b548a808aff71a78358 Mon Sep 17 00:00:00 2001
From: Enno Rehling <enno.rehling@gmail.com>
Date: Sat, 12 Sep 2020 16:02:46 +0200
Subject: [PATCH] division by zero error

---
 src/study.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/src/study.c b/src/study.c
index 1229d6e60..e41d9185d 100644
--- a/src/study.c
+++ b/src/study.c
@@ -777,7 +777,6 @@ int learn_skill(unit *u, skill_t sk, int days, int studycost) {
             avail = get_pooled(u, get_resourcetype(R_SILVER), GET_DEFAULT, studycost * u->number);
             if (avail < cost) {
                 /* not all students can afford the academy */
-                cost = avail;
                 n = n * avail / cost;
                 cost = n * studycost;
             }