From bbc85783755d095a7be98d5ec507a8275a418ebc Mon Sep 17 00:00:00 2001
From: nhmall <nhmall@nethack.org>
Date: Tue, 30 Sep 2025 12:35:18 -0400
Subject: [PATCH] get rid of a visual studio build warning

    lnt-arithmetic-overflow	A sub-expression may overflow before being assigned to a wider type
---
 src/hack.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/hack.c b/src/hack.c
index 7c30870c7..1f0873a79 100644
--- a/src/hack.c
+++ b/src/hack.c
@@ -4327,9 +4327,10 @@ dump_weights(void)
 {
     int i, cnt = 0, nmwidth = 49, mcount = NUMMONS, ocount = NUM_OBJECTS;
     char nmbuf[BUFSZ], nmbufbase[BUFSZ];
+    size_t num_entries = (size_t) (mcount + ocount);
 
     weightlist = (struct weight_table_entry *)
-                alloc(sizeof (struct weight_table_entry) * (mcount + ocount));
+                alloc(sizeof (struct weight_table_entry) * num_entries);
     decl_globals_init();
     init_objects();
     for (i = 0; i < mcount; ++i) {