extern int set_fire_destroy(object_type *o_ptr);
extern int set_cold_destroy(object_type *o_ptr);
extern int inven_damage(inven_func typ, int perc);
-extern int acid_dam(HIT_POINT dam, cptr kb_str, int monspell, bool aura);
-extern int elec_dam(HIT_POINT dam, cptr kb_str, int monspell, bool aura);
-extern int fire_dam(HIT_POINT dam, cptr kb_str, int monspell, bool aura);
-extern int cold_dam(HIT_POINT dam, cptr kb_str, int monspell, bool aura);
+extern HIT_POINT acid_dam(HIT_POINT dam, cptr kb_str, int monspell, bool aura);
+extern HIT_POINT elec_dam(HIT_POINT dam, cptr kb_str, int monspell, bool aura);
+extern HIT_POINT fire_dam(HIT_POINT dam, cptr kb_str, int monspell, bool aura);
+extern HIT_POINT cold_dam(HIT_POINT dam, cptr kb_str, int monspell, bool aura);
extern bool rustproof(void);
extern bool curse_armor(void);
extern bool curse_weapon_object(bool force, object_type *o_ptr);