From d632085b5be5fff332d640151f928e017d8bd878 Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby.or.jp>
Date: Tue, 2 Jan 2024 15:22:45 +0900
Subject: [PATCH] mruby-bigint (udiv): narrow the scope of loop variable 'i'

---
 mrbgems/mruby-bigint/core/bigint.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/mrbgems/mruby-bigint/core/bigint.c b/mrbgems/mruby-bigint/core/bigint.c
index 97f545473..884089188 100644
--- a/mrbgems/mruby-bigint/core/bigint.c
+++ b/mrbgems/mruby-bigint/core/bigint.c
@@ -478,7 +478,6 @@ udiv(mrb_state *mrb, mpz_t *qq, mpz_t *rr, mpz_t *xx, mpz_t *yy)
   }
 
   mpz_t q, x, y;
-  size_t i;
 
   mrb_assert(!uzero(yy));       /* divided by zero */
   mpz_init(mrb, &q);
@@ -502,6 +501,8 @@ udiv(mrb_state *mrb, mpz_t *qq, mpz_t *rr, mpz_t *xx, mpz_t *yy)
       else
         qhat = (((mp_dbl_limb)x.p[j+yd] << DIG_SIZE) + x.p[j+yd-1]) / z;
       if (qhat) {
+        size_t i;
+
         for (i=0; i<yd; i++) {
           mp_dbl_limb zz = qhat * y.p[i];
           mp_dbl_limb_signed u = LOW(b)+x.p[i+j]-LOW(zz);
@@ -512,7 +513,7 @@ udiv(mrb_state *mrb, mpz_t *qq, mpz_t *rr, mpz_t *xx, mpz_t *yy)
       }
       for (; b!=0; qhat--) {
         mp_dbl_limb c = 0;
-        for (i=0; i<yd; i++) {
+        for (size_t i=0; i<yd; i++) {
           c += (mp_dbl_limb)x.p[i+j] + (mp_dbl_limb)y.p[i];
           x.p[i+j] = LOW(c);
           c = HIGH(c);