From 0912f6884428bd69459b98216c6e4b3d96d9073c Mon Sep 17 00:00:00 2001
From: Danny Robson <danny@nerdcruft.net>
Date: Fri, 17 Dec 2021 14:53:25 +1000
Subject: [PATCH] string: add `is_transparent` to transforming `less`
 comparator

---
 string.hpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/string.hpp b/string.hpp
index 18e5cf19..78b61805 100644
--- a/string.hpp
+++ b/string.hpp
@@ -350,6 +350,8 @@ namespace cruft::string {
             return false;
         }
 
+        using is_transparent = void;
+
         template <typename A, typename B>
         requires (!std::is_same_v<A,B>)
         bool operator() (A &&a, B &&b) const noexcept