Reject invalid MAX_WBITS values at compile time.

eyalitki · Nov 9, 2024 · ef24c4c · ef24c4c
1 parent 6d3a66a
commit ef24c4c
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/zutil.h b/zutil.h
@@ -65,7 +65,9 @@ extern z_const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
 /* To be used only when the state is known to be valid */
 
         /* common constants */
-
+#if MAX_WBITS < 9 || MAX_WBITS > 15
+#  error MAX_WBITS must be in 9..15
+#endif
 #ifndef DEF_WBITS
 #  define DEF_WBITS MAX_WBITS
 #endif