From f9eb55e5f2cc20c390d29ca604165ddd71460d3c Mon Sep 17 00:00:00 2001
From: Stanislaw Halik <sthalik@misaki.pl>
Date: Sat, 3 Nov 2018 06:51:19 +0100
Subject: compat/meta: add constexpr variable

---
 compat/meta.hpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/compat/meta.hpp b/compat/meta.hpp
index 7956ba3c..49686996 100644
--- a/compat/meta.hpp
+++ b/compat/meta.hpp
@@ -95,6 +95,9 @@ namespace meta {
     template<template<typename...> class to, typename from>
     using lift = typename detail::lift_<to, from>::type;
 
+    template<template<typename...> class to, typename from>
+    constexpr inline auto lift_v = detail::lift_<to, from>::type::value;
+
     template<typename x, typename... xs>
     using first = x;
 
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