From 328445c947e9efa5c73ce7f882324d86c346f307 Mon Sep 17 00:00:00 2001
From: lazysegtree <59679977+lazysegtree@users.noreply.github.com>
Date: Mon, 12 Jan 2026 20:21:33 +0530
Subject: [PATCH] fix: Use stable_partition for deterministic ordering

---
 include/cxxopts.hpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/cxxopts.hpp b/include/cxxopts.hpp
index a5c67f1..1795169 100644
--- a/include/cxxopts.hpp
+++ b/include/cxxopts.hpp
@@ -2339,7 +2339,7 @@ OptionAdder::operator()
     // (length-1) and longer names
   std::string short_name {""};
   auto first_short_name_iter =
-    std::partition(option_names.begin(), option_names.end(),
+    std::stable_partition(option_names.begin(), option_names.end(),
       [&](const std::string& name) { return name.length() > 1; }
     );
   auto num_length_1_names = (option_names.end() - first_short_name_iter);