From 0f7bf0c3ba9a7b5f64748026212b773b657a0296 Mon Sep 17 00:00:00 2001
From: serge-sans-paille <sergesanspaille@free.fr>
Date: Sun, 19 Apr 2026 10:07:08 +0200
Subject: [PATCH] Prevent xsimd::signbit scalar overload from participating to
 non-scalar resolution

Related to https://github.com/serge-sans-paille/pythran/issues/2423
---
 include/xsimd/arch/xsimd_scalar.hpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/xsimd/arch/xsimd_scalar.hpp b/include/xsimd/arch/xsimd_scalar.hpp
index 6d9f19b31..0b13f06e1 100644
--- a/include/xsimd/arch/xsimd_scalar.hpp
+++ b/include/xsimd/arch/xsimd_scalar.hpp
@@ -819,7 +819,7 @@ namespace xsimd
         return static_cast<long double>(std::signbit(x));
     }
 
-    template <class T>
+    template <class T, class = std::enable_if_t<std::is_scalar<T>::value>>
     XSIMD_INLINE auto signbit(T const& v) noexcept
     {
         return bitofsign(v);