From a6a8576e877b02b83cabd0e712ecd377e7bc156b Mon Sep 17 00:00:00 2001
From: Kenta Murata <mrkn@users.noreply.github.com>
Date: Wed, 21 Oct 2020 02:40:18 +0900
Subject: Feature #16812: Allow slicing arrays with ArithmeticSequence (#3241)

* Support ArithmeticSequence in Array#slice

* Extract rb_range_component_beg_len

* Use rb_range_values to check Range object

* Fix ary_make_partial_step

* Fix for negative step cases

* range.c: Describe the role of err argument in rb_range_component_beg_len

* Raise a RangeError when an arithmetic sequence refers the outside of an array

[Feature #16812]
---
 internal/range.h | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'internal')

diff --git a/internal/range.h b/internal/range.h
index 0b60f42298..4fe6037c89 100644
--- a/internal/range.h
+++ b/internal/range.h
@@ -34,4 +34,8 @@ RANGE_EXCL(VALUE r)
     return RSTRUCT(r)->as.ary[2];
 }
 
+VALUE
+rb_range_component_beg_len(VALUE b, VALUE e, int excl,
+                           long *begp, long *lenp, long len, int err);
+
 #endif /* INTERNAL_RANGE_H */
-- 
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