Fixed some warnings

src/map/npc.cpp

@@ -5778,13 +5778,13 @@ TIMER_FUNC(npc_dynamicnpc_removal_timer){
 		if( sd->npc_id == nd->bl.id || sd->npc_shopid == nd->bl.id ){
 			// Retry later
 			nd->dynamicnpc.last_interaction = gettick();
-			nd->dynamicnpc.removal_tid = add_timer( nd->dynamicnpc.last_interaction + battle_config.feature_dynamicnpc_timeout, npc_dynamicnpc_removal_timer, nd->bl.id, NULL );
+			nd->dynamicnpc.removal_tid = add_timer( nd->dynamicnpc.last_interaction + battle_config.feature_dynamicnpc_timeout, npc_dynamicnpc_removal_timer, nd->bl.id, (intptr_t)nullptr );
 			return 0;
 		}
 
 		// Last interaction is not long enough in the past
 		if( DIFF_TICK( gettick(), nd->dynamicnpc.last_interaction ) < battle_config.feature_dynamicnpc_timeout ){
-			nd->dynamicnpc.removal_tid = add_timer( nd->dynamicnpc.last_interaction + DIFF_TICK( gettick(), nd->dynamicnpc.last_interaction ), npc_dynamicnpc_removal_timer, nd->bl.id, NULL );
+			nd->dynamicnpc.removal_tid = add_timer( nd->dynamicnpc.last_interaction + DIFF_TICK( gettick(), nd->dynamicnpc.last_interaction ), npc_dynamicnpc_removal_timer, nd->bl.id, (intptr_t)nullptr );
 			return 0;
 		}
 
@@ -5831,7 +5831,7 @@ struct npc_data* npc_duplicate_npc_for_player( struct npc_data& nd, struct map_s
 	}
 
 	dnd->dynamicnpc.last_interaction = gettick();
-	dnd->dynamicnpc.removal_tid = add_timer( dnd->dynamicnpc.last_interaction + battle_config.feature_dynamicnpc_timeout, npc_dynamicnpc_removal_timer, dnd->bl.id, NULL );
+	dnd->dynamicnpc.removal_tid = add_timer( dnd->dynamicnpc.last_interaction + battle_config.feature_dynamicnpc_timeout, npc_dynamicnpc_removal_timer, dnd->bl.id, (intptr_t)nullptr );
 
 	return dnd;
 }

src/map/pc.cpp

@@ -2003,7 +2003,7 @@ TIMER_FUNC(pc_goldpc_update){
 		pc_setreg2( sd, GOLDPC_SECONDS_VAR, 0 );
 
 		if( points < battle_config.feature_goldpc_max_points ){
-			sd->goldpc_tid = add_timer( gettick() + battle_config.feature_goldpc_time * 1000, pc_goldpc_update, sd->bl.id, nullptr );
+			sd->goldpc_tid = add_timer( gettick() + battle_config.feature_goldpc_time * 1000, pc_goldpc_update, sd->bl.id, (intptr_t)nullptr );
 		}
 
 		// Update the client
@@ -2122,7 +2122,7 @@ void pc_reg_received(struct map_session_data *sd)
 #endif
 
 	if( battle_config.feature_goldpc_active ){
-		sd->goldpc_tid = add_timer( gettick() + ( battle_config.feature_goldpc_time - pc_readreg2( sd, GOLDPC_SECONDS_VAR ) ) * 1000, pc_goldpc_update, sd->bl.id, nullptr );
+		sd->goldpc_tid = add_timer( gettick() + ( battle_config.feature_goldpc_time - pc_readreg2( sd, GOLDPC_SECONDS_VAR ) ) * 1000, pc_goldpc_update, sd->bl.id, (intptr_t)nullptr );
 #ifndef VIP_ENABLE
 		clif_goldpc_info( *sd );
 #endif