From fc187fff9a6613091a309bb44751fc245900d2f6 Mon Sep 17 00:00:00 2001
From: Shauren <shauren.trinity@gmail.com>
Date: Sun, 1 Dec 2024 19:05:26 +0100
Subject: Core/Misc: Port std::ranges::contains from c++23

(cherry picked from commit 3e2abd2535d3995e051a9c5bc52c2e671d70d843)
---
 src/common/Utilities/advstd.h         | 28 ++++++++++++++++++++++++++++
 src/server/game/Loot/LootMgr.cpp      |  2 +-
 src/server/shared/Realm/RealmList.cpp |  3 ++-
 3 files changed, 31 insertions(+), 2 deletions(-)

(limited to 'src')

diff --git a/src/common/Utilities/advstd.h b/src/common/Utilities/advstd.h
index 5bdfb52b533..68ddf6a0c10 100644
--- a/src/common/Utilities/advstd.h
+++ b/src/common/Utilities/advstd.h
@@ -52,4 +52,32 @@ template <typename To, typename From,
 #endif
 }
 
+// std::ranges::contains
+#ifndef __cpp_lib_ranges_contains
+#include <functional> // for std::ranges::equal_to, std::identity
+#include <iterator> // for std::input_iterator, std::sentinel_for, std::projected
+
+namespace advstd::ranges
+{
+struct Contains
+{
+    template<std::input_iterator I, std::sentinel_for<I> S, class T, class Proj = std::identity>
+    requires std::indirect_binary_predicate<std::ranges::equal_to, std::projected<I, Proj>, T const*>
+    [[nodiscard]] inline constexpr bool operator()(I first, S last, T const& value, Proj proj = {}) const
+    {
+        return std::ranges::find(std::move(first), last, value, proj) != last;
+    }
+
+    template<std::ranges::input_range R, class T, class Proj = std::identity>
+    requires std::indirect_binary_predicate<std::ranges::equal_to, std::projected<std::ranges::iterator_t<R>, Proj>, T const*>
+    [[nodiscard]] inline constexpr bool operator()(R&& r, T const& value, Proj proj = {}) const
+    {
+        auto first = std::ranges::begin(r);
+        auto last = std::ranges::end(r);
+        return std::ranges::find(std::move(first), last, value, proj) != last;
+    }
+} inline constexpr contains;
+}
+#endif
+
 #endif
diff --git a/src/server/game/Loot/LootMgr.cpp b/src/server/game/Loot/LootMgr.cpp
index 2104cc0c5ab..02fc7b7762e 100644
--- a/src/server/game/Loot/LootMgr.cpp
+++ b/src/server/game/Loot/LootMgr.cpp
@@ -709,7 +709,7 @@ void LootTemplate::ProcessPersonalLoot(std::unordered_map<Player*, std::unique_p
 
                     auto newEnd = std::remove_if(lootersForItem.begin(), lootersForItem.end(), [&](Player const* looter)
                     {
-                        return std::ranges::find(gotLoot, looter) != gotLoot.end();
+                        return advstd::ranges::contains(gotLoot, looter);
                     });
 
                     if (lootersForItem.begin() == newEnd)
diff --git a/src/server/shared/Realm/RealmList.cpp b/src/server/shared/Realm/RealmList.cpp
index 9fe48277353..8c5bb6751cf 100644
--- a/src/server/shared/Realm/RealmList.cpp
+++ b/src/server/shared/Realm/RealmList.cpp
@@ -27,6 +27,7 @@
 #include "Util.h"
 #include "game_utilities_service.pb.h"
 #include "RealmList.pb.h"
+#include "advstd.h"
 #include <boost/asio/ip/tcp.hpp>
 #include <zlib.h>
 
@@ -129,7 +130,7 @@ void RealmList::UpdateRealms()
                 for (boost::asio::ip::tcp::endpoint const& endpoint : _resolver->ResolveAll(fields[2 + i].GetStringView(), ""))
                 {
                     boost::asio::ip::address address = endpoint.address();
-                    if (std::ranges::find(addresses, address) != addresses.end())
+                    if (advstd::ranges::contains(addresses, address))
                         continue;
 
                     addresses.push_back(std::move(address));
-- 
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