diff --git a/src/common/gamecode/creation.c b/src/common/gamecode/creation.c
index d91262057..7dc15dbc3 100644
--- a/src/common/gamecode/creation.c
+++ b/src/common/gamecode/creation.c
@@ -70,7 +70,7 @@ createmonsters(void)
 	set_string(&f->email, "monsters@eressea.de");
 	set_string(&f->name, "Monster");
 	f->alive = 1;
-	f->options = (char) pow(2, O_REPORT);
+	f->options = (char)(1<<O_REPORT);
 	addlist(&factions, f);
   fhash(f);
 }
diff --git a/src/common/gamecode/laws.c b/src/common/gamecode/laws.c
index 285c63e37..a167000c4 100644
--- a/src/common/gamecode/laws.c
+++ b/src/common/gamecode/laws.c
@@ -2094,12 +2094,12 @@ send_cmd(unit * u, struct order * ord)
       if (option == O_COMPRESS || option == O_BZIP2) {
         cmistake(u, ord, 305, MSG_EVENT);
       } else {
-        u->faction->options = u->faction->options & ~((int)pow(2, option));
+        u->faction->options = u->faction->options & ~(1<<option);
       }
     } else {
-      u->faction->options = u->faction->options | ((int)pow(2, option));
-      if(option == O_COMPRESS) u->faction->options &= ~((int)pow(2, O_BZIP2));
-      if(option == O_BZIP2) u->faction->options &= ~((int)pow(2, O_COMPRESS));
+      u->faction->options = u->faction->options | (1<<option);
+      if(option == O_COMPRESS) u->faction->options &= ~(1<<O_BZIP2);
+      if(option == O_BZIP2) u->faction->options &= ~(1<<O_COMPRESS);
     }
   }
   return 0;
diff --git a/src/common/kernel/magic.c b/src/common/kernel/magic.c
index 75256a422..6557f6bd5 100644
--- a/src/common/kernel/magic.c
+++ b/src/common/kernel/magic.c
@@ -1056,16 +1056,16 @@ farcasting(unit *magician, region *r)
 	int mult;
 
 	if (!r) {
-		return 1025;
+		return INT_MAX;
 	}
 
 	dist = koor_distance(r->x, r->y, magician->region->x, magician->region->y);
 
-	if (dist > 24) return 1025;
+	if (dist > 24) return INT_MAX;
 
-	mult = (int)pow(2.0,(double)dist);
+	mult = 1 << dist;
 	if (dist > 1) {
-		if (!path_exists(magician->region, r, dist*2, allowed_fly)) mult = 1025;
+		if (!path_exists(magician->region, r, dist*2, allowed_fly)) mult = INT_MAX;
 	}
 
 	return mult;