From fff07ca182f20ba11870148cad26650a2e7c9608 Mon Sep 17 00:00:00 2001
From: leviongit <levi.duncan.self@gmail.com>
Date: Wed, 8 May 2024 23:03:36 +0200
Subject: [PATCH] fix: `to_a` integer ranges with `begin > end` failing

example of failure:
```rb
(-1..-4).to_a
```

expected result:
```rb
(-1..-4).to_a
```
---
 src/range.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/range.c b/src/range.c
index cf04ceb31..7edb630c9 100644
--- a/src/range.c
+++ b/src/range.c
@@ -358,6 +358,10 @@ range_num_to_a(mrb_state *mrb, mrb_value range)
     if (mrb_integer_p(end)) {
       mrb_int a = mrb_integer(beg);
       mrb_int b = mrb_integer(end);
+
+      if (a > b) {
+        return mrb_ary_new_capa(mrb, 0);
+      }
       mrb_int len;
 
       if (mrb_int_sub_overflow(b, a, &len)) {