From 98269b6d64f26d1e8f22f3d8fddd30393f009e17 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@ruby-lang.org>
Date: Fri, 13 Feb 2026 08:40:46 +0900
Subject: [Feature #21796] unpack variant `^` that returns the final offset
 (#15647)

[Feature #21796] unpack variant `^` that returns the current offset
---
 pack.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'pack.c')

diff --git a/pack.c b/pack.c
index d2fb4f633f..f956e686e3 100644
--- a/pack.c
+++ b/pack.c
@@ -1570,6 +1570,10 @@ pack_unpack_internal(VALUE str, VALUE fmt, enum unpack_mode mode, long offset)
             s += len;
             break;
 
+          case '^':
+            UNPACK_PUSH(SSIZET2NUM(s - RSTRING_PTR(str)));
+            break;
+
           case 'P':
             if (sizeof(char *) <= (size_t)(send - s)) {
                 VALUE tmp = Qnil;
-- 
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