From 6e3d17d189a5f86383505daaaa742acf6d647ba1 Mon Sep 17 00:00:00 2001
From: Barinzaya <barinzaya@gmail.com>
Date: Sun, 2 Mar 2025 13:29:39 -0500
Subject: Fixed `~` on `bit_set[Some_Enum]` altering the definition of the
 enum.

This was occurring for enums whose minimum values were greater than
zero.
---
 src/check_expr.cpp | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

(limited to 'src/check_expr.cpp')

diff --git a/src/check_expr.cpp b/src/check_expr.cpp
index bd1c34044..2f7b5fd0a 100644
--- a/src/check_expr.cpp
+++ b/src/check_expr.cpp
@@ -2599,9 +2599,8 @@ gb_internal ExactValue exact_bit_set_all_set_mask(Type *type) {
 					continue;
 				}
 
-				BigInt shift_amount = f->Constant.value.value_integer;
-				big_int_sub_eq(&shift_amount, &b_lower_base);
-
+				BigInt shift_amount = {};
+				big_int_sub(&shift_amount, &f->Constant.value.value_integer, &b_lower_base);
 
 				BigInt value = {};
 				big_int_shl(&value, &one, &shift_amount);
-- 
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