From 85c2aaf0a426158e96261ddace4d5287c646ba58 Mon Sep 17 00:00:00 2001
From: misomosi <misomosispi@gmail.com>
Date: Sun, 28 Jun 2026 19:25:02 -0400
Subject: [PATCH] Use libtommath API for counting bits

---
 src/big_int.cpp | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/big_int.cpp b/src/big_int.cpp
index 4f20f2ad9..a8ea2079b 100644
--- a/src/big_int.cpp
+++ b/src/big_int.cpp
@@ -296,8 +296,7 @@ gb_internal void big_int_from_string(BigInt *dst, String const &s, bool *success
 
 
 gb_internal bool big_int_can_be_represented_in_64_bits(BigInt const *x) {
-	int bits_used = (x->used-1) * MP_DIGIT_BIT;
-	return bits_used <= 64;
+	return mp_count_bits(x) <= 64;
 }
 
 gb_internal u64 big_int_to_u64(BigInt const *x) {