From: Jonathan Wakely <jwakely@redhat.com>
Date: Wed, 15 Jan 2025 09:33:55 +0000 (+0000)
Subject: libstdc++: Fix reversed args in unreachable assumption [PR109849]
X-Git-Tag: basepoints/gcc-16~2627
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=6f85a97248fdff15aadc9514c1118eee0293d256;p=thirdparty%2Fgcc.git

libstdc++: Fix reversed args in unreachable assumption [PR109849]

libstdc++-v3/ChangeLog:

	PR libstdc++/109849
	* include/bits/vector.tcc (vector::_M_range_insert): Fix
	reversed args in length calculation.
---

diff --git a/libstdc++-v3/include/bits/vector.tcc b/libstdc++-v3/include/bits/vector.tcc
index 44920a0549ab..4f4c366080be 100644
--- a/libstdc++-v3/include/bits/vector.tcc
+++ b/libstdc++-v3/include/bits/vector.tcc
@@ -934,7 +934,7 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
 		const size_type __len =
 		  _M_check_len(__n, "vector::_M_range_insert");
 #if __cplusplus < 201103L
-		if (__len < (__n + (__old_start - __old_finish)))
+		if (__len < (__n + (__old_finish - __old_start)))
 		  __builtin_unreachable();
 #endif