Fix UBSAN implicit conversion warning in inftrees.c.

Co-authored-by: Nathan Moin Vaziri <nathan@nathanm.com>

diff --git a/inftrees.c b/inftrees.c
index 1320eb988a2f1e9cdce195e2bd94dd0e11d16d73..d65e6a9ce5d9af52d0d48938b2ab3b1033b68ddd 100644 (file)
--- a/inftrees.c
+++ b/inftrees.c
@@ -342,7 +342,7 @@ int Z_INTERNAL zng_inflate_table(codetype type, uint16_t *lens, unsigned codes,
         } while (fill != 0);
 
         /* backwards increment the len-bit code huff */
-        rhuff += (0x8000u >> (len - 1));
+        rhuff = (uint16_t)(rhuff + (0x8000u >> (len - 1)));
         huff = zng_bitreverse16(rhuff);
 
         /* go to next symbol, update count, len */