From 2dd5ccf24c931582937533ec56da29703b717d9c Mon Sep 17 00:00:00 2001
From: Pedro Maciel <Pedro.Maciel@ecmwf.int>
Date: Mon, 13 Nov 2023 12:27:44 +0000
Subject: [PATCH] Fix logic

---
 src/atlas/redistribution/detail/RedistributeGeneric.cc | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/atlas/redistribution/detail/RedistributeGeneric.cc b/src/atlas/redistribution/detail/RedistributeGeneric.cc
index 9e86fff15..d1aa54888 100644
--- a/src/atlas/redistribution/detail/RedistributeGeneric.cc
+++ b/src/atlas/redistribution/detail/RedistributeGeneric.cc
@@ -121,9 +121,9 @@ std::vector<IdxUid> getUidVec(const FunctionSpace& functionspace) {
     // Check UIDs are unique.
     if (ATLAS_BUILD_TYPE_DEBUG) {
         const size_t vecSize = uidVec.size();
-        std::unique(uidVec.begin(), uidVec.end(),
-                    [](const IdxUid& a, const IdxUid& b) { return a.second == b.second; });
-        ATLAS_ASSERT(uidVec.size() == vecSize, "Unique ID set has duplicate members");
+        auto first_duplicate = std::adjacent_find(
+            uidVec.begin(), uidVec.end(), [](const IdxUid& a, const IdxUid& b) { return a.second == b.second; });
+        ATLAS_ASSERT(uidVec.end() == first_duplicate, "Unique ID set has duplicate members");
     }
 
     return uidVec;