From cd2d667ca7d3d31dbcf1f3bf0717b744b11ec776 Mon Sep 17 00:00:00 2001
From: Sadie Powell
Date: Thu, 26 Mar 2026 22:24:16 +0000
Subject: Switch typedefs to using statements.

---
 include/bancache.h            |  2 +-
 include/channels.h            |  2 +-
 include/clientprotocol.h      |  4 +--
 include/configparser.h        |  2 +-
 include/configreader.h        |  8 +++---
 include/event.h               |  2 +-
 include/extensible.h          |  2 +-
 include/extension.h           |  2 +-
 include/flat_map.h            | 60 +++++++++++++++++++++----------------------
 include/intrusive_list_impl.h |  2 +-
 include/listmode.h            |  4 +--
 include/logging.h             |  2 +-
 include/membership.h          |  2 +-
 include/mode.h                | 14 +++++-----
 include/modechange.h          |  2 +-
 include/modules.h             |  2 +-
 include/modules/cap.h         |  4 +--
 include/modules/cloak.h       |  4 +--
 include/modules/dns.h         |  2 +-
 include/modules/extban.h      |  2 +-
 include/modules/invite.h      |  2 +-
 include/modules/ircv3_batch.h |  2 +-
 include/modules/ldap.h        |  4 +--
 include/modules/regex.h       |  6 ++---
 include/modules/reload.h      |  2 +-
 include/modules/sql.h         |  8 +++---
 include/protocol.h            |  2 +-
 include/socket.h              |  8 +++---
 include/socketengine.h        |  4 +--
 include/streamsocket.h        |  6 ++---
 include/stringutils.h         |  2 +-
 include/timer.h               |  2 +-
 include/typedefs.h            | 12 ++++-----
 include/usermanager.h         |  8 +++---
 include/users.h               |  6 ++---
 include/xline.h               | 10 ++++----
 36 files changed, 104 insertions(+), 104 deletions(-)

(limited to 'include')

diff --git a/include/bancache.h b/include/bancache.h
index faee0bf58..d9c26e70e 100644
--- a/include/bancache.h
+++ b/include/bancache.h
@@ -56,7 +56,7 @@ class CoreExport BanCacheManager final
 {
 	/** A container of ban cache items.
 	 */
-	typedef std::unordered_map<std::string, BanCacheHit*> BanCacheHash;
+	using BanCacheHash = std::unordered_map<std::string, BanCacheHit*>;
 
 	BanCacheHash BanHash;
 	bool RemoveIfExpired(BanCacheHash::iterator& it);
diff --git a/include/channels.h b/include/channels.h
index bff93581a..bec71ecd1 100644
--- a/include/channels.h
+++ b/include/channels.h
@@ -44,7 +44,7 @@ class CoreExport Channel final
 public:
 	/** A map of Memberships on a channel keyed by User pointers
 	 */
-	typedef std::unordered_map<User*, insp::aligned_storage<Membership>> MemberMap;
+	using MemberMap = std::unordered_map<User*, insp::aligned_storage<Membership>>;
 
 private:
 	/** Modes for the channel.
diff --git a/include/clientprotocol.h b/include/clientprotocol.h
index 7be110f07..7c2ed6365 100644
--- a/include/clientprotocol.h
+++ b/include/clientprotocol.h
@@ -290,7 +290,7 @@ public:
 		bool IsOwned() const { return owned; }
 	};
 
-	typedef std::vector<Param> ParamList;
+	using ParamList = std::vector<Param>;
 
 	/** Escapes a value to the tag format.
 	 * @param value The value to escape.
@@ -303,7 +303,7 @@ public:
 	static std::string UnescapeTag(const std::string& value);
 
 private:
-	typedef std::vector<std::pair<SerializedInfo, SerializedMessage>> SerializedList;
+	using SerializedList = std::vector<std::pair<SerializedInfo, SerializedMessage>>;
 
 	ParamList params;
 	TagMap tags;
diff --git a/include/configparser.h b/include/configparser.h
index adcc880f6..67c1b3579 100644
--- a/include/configparser.h
+++ b/include/configparser.h
@@ -22,7 +22,7 @@
 
 #pragma once
 
-typedef std::unique_ptr<FILE, int(*)(FILE*)> FilePtr;
+using FilePtr = std::unique_ptr<FILE, int(*)(FILE*)>;
 
 struct ParseStack final
 {
diff --git a/include/configreader.h b/include/configreader.h
index ee085185a..69d30a253 100644
--- a/include/configreader.h
+++ b/include/configreader.h
@@ -404,16 +404,16 @@ public:
 	};
 
 	/** Holds the connect classes from the server config. */
-	typedef std::vector<std::shared_ptr<ConnectClass>> ClassVector;
+	using ClassVector = std::vector<std::shared_ptr<ConnectClass>>;
 
 	/** Holds the oper accounts from the server config. */
-	typedef insp::flat_map<std::string, std::shared_ptr<OperAccount>> OperAccountMap;
+	using OperAccountMap = insp::flat_map<std::string, std::shared_ptr<OperAccount>>;
 
 	/** Holds the oper types from the server config. */
-	typedef insp::flat_map<std::string, std::shared_ptr<OperType>> OperTypeMap;
+	using OperTypeMap = insp::flat_map<std::string, std::shared_ptr<OperType>>;
 
 	/** Holds iterators to a subsection of the server config map. */
-	typedef insp::iterator_range<TagMap::const_iterator> TagList;
+	using TagList = insp::iterator_range<TagMap::const_iterator>;
 
 	/** The connect classes from the server config. */
 	ClassVector Classes;
diff --git a/include/event.h b/include/event.h
index 887f73221..2da3e509c 100644
--- a/include/event.h
+++ b/include/event.h
@@ -49,7 +49,7 @@ public:
 		bool operator()(ModuleEventListener* lhs, ModuleEventListener* rhs) const;
 	};
 
-	typedef insp::flat_multiset<ModuleEventListener*, Comp, ElementComp> SubscriberList;
+	using SubscriberList = insp::flat_multiset<ModuleEventListener*, Comp, ElementComp>;
 
 	/** Constructor
 	 * @param mod Module providing the event(s)
diff --git a/include/extensible.h b/include/extensible.h
index 10ccbd3de..4e299d7dc 100644
--- a/include/extensible.h
+++ b/include/extensible.h
@@ -44,7 +44,7 @@ class CoreExport Extensible
 {
 public:
 	/** The container which extension values are stored in. */
-	typedef insp::flat_map<ExtensionItem*, void*> ExtensibleStore;
+	using ExtensibleStore = insp::flat_map<ExtensionItem*, void*>;
 
 	/** Allows extensions to access the extension store. */
 	friend class ExtensionItem;
diff --git a/include/extension.h b/include/extension.h
index 1437a7b7d..cff6ab878 100644
--- a/include/extension.h
+++ b/include/extension.h
@@ -299,7 +299,7 @@ class ListExtItem
 {
 public:
 	/** The underlying list type. */
-	typedef Container List;
+	using List = Container;
 
 	/** Initializes an instance of the ListExtItem class.
 	 * @param owner The module which created the extension.
diff --git a/include/flat_map.h b/include/flat_map.h
index 9dd394f12..1b4cfd36a 100644
--- a/include/flat_map.h
+++ b/include/flat_map.h
@@ -30,8 +30,8 @@ template <typename T, typename Comp>
 class map_pair_compare final
 	: public Comp
 {
-	typedef T value_type;
-	typedef typename value_type::first_type key_type;
+	using value_type = T;
+	using key_type = typename value_type::first_type;
 
 public:
 	bool operator()(const value_type& x, const value_type& y) const
@@ -65,22 +65,22 @@ template <typename T, typename Comp, typename Key = T, typename ElementComp = Co
 class flat_map_base
 {
 protected:
-	typedef std::vector<T> storage_type;
+	using storage_type = std::vector<T>;
 	storage_type vect;
 
 public:
-	typedef typename storage_type::iterator iterator;
-	typedef typename storage_type::const_iterator const_iterator;
-	typedef typename storage_type::reverse_iterator reverse_iterator;
-	typedef typename storage_type::const_reverse_iterator const_reverse_iterator;
+	using iterator = typename storage_type::iterator;
+	using const_iterator = typename storage_type::const_iterator;
+	using reverse_iterator = typename storage_type::reverse_iterator;
+	using const_reverse_iterator = typename storage_type::const_reverse_iterator;
 
-	typedef typename storage_type::size_type size_type;
-	typedef typename storage_type::difference_type difference_type;
-	typedef Key key_type;
-	typedef T value_type;
+	using size_type = typename storage_type::size_type;
+	using difference_type = typename storage_type::difference_type;
+	using key_type = Key;
+	using value_type = T;
 
-	typedef Comp key_compare;
-	typedef ElementComp value_compare;
+	using key_compare = Comp;
+	using value_compare = ElementComp;
 
 	flat_map_base() = default;
 
@@ -205,11 +205,11 @@ template <typename T, typename Comp = std::less<T>, typename ElementComp = Comp>
 class flat_set
 	: public detail::flat_map_base<T, Comp, T, ElementComp>
 {
-	typedef detail::flat_map_base<T, Comp, T, ElementComp> base_type;
+	using base_type = detail::flat_map_base<T, Comp, T, ElementComp>;
 
 public:
-	typedef typename base_type::iterator iterator;
-	typedef typename base_type::value_type value_type;
+	using iterator = typename base_type::iterator;
+	using value_type = typename base_type::value_type;
 
 	flat_set() = default;
 
@@ -260,11 +260,11 @@ template <typename T, typename Comp = std::less<T>, typename ElementComp = Comp>
 class flat_multiset
 	: public detail::flat_map_base<T, Comp, T, ElementComp>
 {
-	typedef detail::flat_map_base<T, Comp, T, ElementComp> base_type;
+	using base_type = detail::flat_map_base<T, Comp, T, ElementComp>;
 
 public:
-	typedef typename base_type::iterator iterator;
-	typedef typename base_type::value_type value_type;
+	using iterator = typename base_type::iterator;
+	using value_type = typename base_type::value_type;
 
 	flat_multiset() = default;
 
@@ -315,14 +315,14 @@ template <typename T, typename U, typename Comp = std::less<T>, typename Element
 class flat_map
 	: public detail::flat_map_base<std::pair<T, U>, Comp, T, detail::map_pair_compare<std::pair<T, U>, ElementComp>>
 {
-	typedef detail::flat_map_base<std::pair<T, U>, Comp, T, detail::map_pair_compare<std::pair<T, U>, ElementComp>> base_type;
+	using base_type = detail::flat_map_base<std::pair<T, U>, Comp, T, detail::map_pair_compare<std::pair<T, U>, ElementComp>>;
 
 public:
-	typedef typename base_type::iterator iterator;
-	typedef typename base_type::key_type key_type;
-	typedef typename base_type::value_type value_type;
-	typedef U mapped_type;
-	typedef typename base_type::value_compare value_compare;
+	using iterator = typename base_type::iterator;
+	using key_type = typename base_type::key_type;
+	using value_type = typename base_type::value_type;
+	using mapped_type = U;
+	using value_compare = typename base_type::value_compare;
 
 	flat_map() = default;
 
@@ -383,13 +383,13 @@ template <typename T, typename U, typename Comp = std::less<T>, typename Element
 class flat_multimap
 	: public detail::flat_map_base<std::pair<T, U>, Comp, T, detail::map_pair_compare<std::pair<T, U>, ElementComp>>
 {
-	typedef detail::flat_map_base<std::pair<T, U>, Comp, T, detail::map_pair_compare<std::pair<T, U>, ElementComp>> base_type;
+	using base_type = detail::flat_map_base<std::pair<T, U>, Comp, T, detail::map_pair_compare<std::pair<T, U>, ElementComp>>;
 
 public:
-	typedef typename base_type::iterator iterator;
-	typedef typename base_type::value_type value_type;
-	typedef U mapped_type;
-	typedef typename base_type::value_compare value_compare;
+	using iterator = typename base_type::iterator;
+	using value_type = typename base_type::value_type;
+	using mapped_type = U;
+	using value_compare = typename base_type::value_compare;
 
 	flat_multimap() = default;
 
diff --git a/include/intrusive_list_impl.h b/include/intrusive_list_impl.h
index 940626ddf..4aa20817e 100644
--- a/include/intrusive_list_impl.h
+++ b/include/intrusive_list_impl.h
@@ -72,7 +72,7 @@ public:
 		T* operator*() const { return curr; }
 	};
 
-	typedef iterator const_iterator;
+	using const_iterator = iterator;
 
 	bool empty() const
 	{
diff --git a/include/listmode.h b/include/listmode.h
index 6a7ebe913..cc8d4d03e 100644
--- a/include/listmode.h
+++ b/include/listmode.h
@@ -46,7 +46,7 @@ public:
 
 	/** Items stored in the channel's list
 	 */
-	typedef std::vector<ListItem> ModeList;
+	using ModeList = std::vector<ListItem>;
 
 private:
 	class ChanData final
@@ -73,7 +73,7 @@ private:
 
 	/** Max items per channel by name
 	 */
-	typedef std::vector<ListLimit> limitlist;
+	using limitlist = std::vector<ListLimit>;
 
 	/** The default maximum list size. */
 	static constexpr unsigned int DEFAULT_LIST_SIZE = 100;
diff --git a/include/logging.h b/include/logging.h
index c53bf8c82..69d13a111 100644
--- a/include/logging.h
+++ b/include/logging.h
@@ -31,7 +31,7 @@ namespace Log
 	class Manager;
 
 	/** A shared pointer to a log method. */
-	typedef std::shared_ptr<Method> MethodPtr;
+	using MethodPtr = std::shared_ptr<Method>;
 
 	/** Levels at which messages can be logged. */
 	enum class Level
diff --git a/include/membership.h b/include/membership.h
index 7153f2d00..8926430e1 100644
--- a/include/membership.h
+++ b/include/membership.h
@@ -38,7 +38,7 @@ class CoreExport Membership final
 public:
 	/** Type of the Membership id
 	 */
-	typedef uint64_t Id;
+	using Id = uint64_t;
 
 	/** User on the channel
 	 */
diff --git a/include/mode.h b/include/mode.h
index 71a590625..d2732629c 100644
--- a/include/mode.h
+++ b/include/mode.h
@@ -92,10 +92,10 @@ class CoreExport ModeHandler
 {
 public:
 	/** The underlying type of a mode rank. */
-	typedef unsigned long Rank;
+	using Rank = unsigned long;
 
 	/** The underlying type of a mode id. */
-	typedef size_t Id;
+	using Id = size_t;
 
 	enum Class
 	{
@@ -569,12 +569,12 @@ public:
 	using ModeHandlerMap = insp::casemapped_unordered_map<ModeHandler*>;
 
 	/** Type of the container that contains whether a mode is set. */
-	typedef std::bitset<MODEID_MAX> ModeStatus;
+	using ModeStatus = std::bitset<MODEID_MAX>;
 
 private:
 	/** Type of the container that maps mode names to ModeWatchers
 	 */
-	typedef insp::flat_multimap<std::string, ModeWatcher*> ModeWatcherMap;
+	using ModeWatcherMap = insp::flat_multimap<std::string, ModeWatcher*>;
 
 	/** Last item in the ModeType enum
 	 */
@@ -629,10 +629,10 @@ private:
 	ModeHandler::Id AllocateModeId(ModeHandler* mh);
 
 public:
-	typedef std::vector<ListModeBase*> ListModeList;
-	typedef std::vector<PrefixMode*> PrefixModeList;
+	using ListModeList = std::vector<ListModeBase*>;
+	using PrefixModeList = std::vector<PrefixMode*>;
 
-	typedef unsigned int ModeProcessFlag;
+	using ModeProcessFlag = unsigned int;
 	enum ModeProcessFlags
 	{
 		/** If only this flag is specified, the mode change will be global
diff --git a/include/modechange.h b/include/modechange.h
index 561912c56..753c241cb 100644
--- a/include/modechange.h
+++ b/include/modechange.h
@@ -70,7 +70,7 @@ struct Modes::Change final
 class Modes::ChangeList final
 {
 public:
-	typedef std::vector<Change> List;
+	using List = std::vector<Change>;
 
 	/** Add a new mode to be changed to this ChangeList
 	 * @param change Mode change to add
diff --git a/include/modules.h b/include/modules.h
index a3973705c..17011011b 100644
--- a/include/modules.h
+++ b/include/modules.h
@@ -243,7 +243,7 @@ public:
 	using LinkDataDiff = insp::casemapped_map<std::pair<std::optional<std::string>, std::optional<std::string>>>;
 
 	/** A list of modules. */
-	typedef std::vector<Module*> List;
+	using List = std::vector<Module*>;
 
 	/** Reference to the dynamic library. */
 	DLLManager* ModuleDLL = nullptr;
diff --git a/include/modules/cap.h b/include/modules/cap.h
index dbeedc27f..63d5f8c0b 100644
--- a/include/modules/cap.h
+++ b/include/modules/cap.h
@@ -28,7 +28,7 @@ namespace Cap
 	static constexpr intptr_t CAP_302_BIT = (intptr_t)1 << MAX_CAPS;
 	static constexpr unsigned int MAX_VALUE_LENGTH = 100;
 
-	typedef intptr_t Ext;
+	using Ext = intptr_t;
 	class ExtItem : public IntExtItem
 	{
 	public:
@@ -118,7 +118,7 @@ namespace Cap
 	 */
 	class Capability : public ServiceProvider, private dynamic_reference_base::CaptureHook
 	{
-		typedef size_t Bit;
+		using Bit = size_t;
 
 		/** Bit allocated to this cap, undefined if the cap is unregistered
 		 */
diff --git a/include/modules/cloak.h b/include/modules/cloak.h
index 882fc6701..38381a25a 100644
--- a/include/modules/cloak.h
+++ b/include/modules/cloak.h
@@ -31,10 +31,10 @@ namespace Cloak
 	struct Info;
 
 	/** Encapsulates a list of cloaks. */
-	typedef std::vector<Info> List;
+	using List = std::vector<Info>;
 
 	/** A shared pointer to a cloak method. */
-	typedef std::shared_ptr<Method> MethodPtr;
+	using MethodPtr = std::shared_ptr<Method>;
 
 	/** Takes a hostname and retrieves the part which should be visible.
 	 *
diff --git a/include/modules/dns.h b/include/modules/dns.h
index 8e8ac23ea..da700f50d 100644
--- a/include/modules/dns.h
+++ b/include/modules/dns.h
@@ -76,7 +76,7 @@ namespace DNS
 		ERROR_INVALIDTYPE
 	};
 
-	typedef uint16_t RequestId;
+	using RequestId = uint16_t;
 
 	const int PORT = 53;
 
diff --git a/include/modules/extban.h b/include/modules/extban.h
index 944974ace..4f807d844 100644
--- a/include/modules/extban.h
+++ b/include/modules/extban.h
@@ -128,7 +128,7 @@ protected:
 
 public:
 	/** A mapping of extban letters to their associated object. */
-	typedef std::unordered_map<ExtBan::Letter, ExtBan::Base*> LetterMap;
+	using LetterMap = std::unordered_map<ExtBan::Letter, ExtBan::Base*>;
 
 	/** A mapping of extban names to their associated objects. */
 	using NameMap = insp::casemapped_unordered_map<ExtBan::Base*>;
diff --git a/include/modules/invite.h b/include/modules/invite.h
index 7b492201a..15fac9c0b 100644
--- a/include/modules/invite.h
+++ b/include/modules/invite.h
@@ -43,7 +43,7 @@ namespace Invite
 		ANNOUNCE_DYNAMIC
 	};
 
-	typedef insp::intrusive_list<Invite, LocalUser> List;
+	using List = insp::intrusive_list<Invite, LocalUser>;
 }
 
 class Invite::APIBase
diff --git a/include/modules/ircv3_batch.h b/include/modules/ircv3_batch.h
index 3b8796912..bff4a25f3 100644
--- a/include/modules/ircv3_batch.h
+++ b/include/modules/ircv3_batch.h
@@ -26,7 +26,7 @@ namespace IRCv3
 {
 	namespace Batch
 	{
-		typedef uint64_t RefTag;
+		using RefTag = uint64_t;
 		class Manager;
 		class ManagerImpl;
 		class Batch;
diff --git a/include/modules/ldap.h b/include/modules/ldap.h
index 9563eabd1..d7399eb03 100644
--- a/include/modules/ldap.h
+++ b/include/modules/ldap.h
@@ -19,7 +19,7 @@
 
 #pragma once
 
-typedef int LDAPQuery;
+using LDAPQuery = int;
 
 // XXX: This should be using ModuleException.
 class LDAPException final
@@ -46,7 +46,7 @@ struct LDAPModification final
 	std::vector<std::string> values;
 };
 
-typedef std::vector<LDAPModification> LDAPMods;
+using LDAPMods = std::vector<LDAPModification>;
 
 struct LDAPAttributes final
 	: public std::map<std::string, std::vector<std::string>>
diff --git a/include/modules/regex.h b/include/modules/regex.h
index 793bb2c5d..94cee3070 100644
--- a/include/modules/regex.h
+++ b/include/modules/regex.h
@@ -31,13 +31,13 @@ namespace Regex
 	template<typename> class SimpleEngine;
 
 	/** A list of matches that were captured by index. */
-	typedef std::vector<std::string> Captures;
+	using Captures = std::vector<std::string>;
 
 	/** A list of matches that were captured by name. */
-	typedef insp::flat_map<std::string, std::string> NamedCaptures;
+	using NamedCaptures = insp::flat_map<std::string, std::string>;
 
 	/** A shared pointer to a regex pattern. */
-	typedef std::shared_ptr<Pattern> PatternPtr;
+	using PatternPtr = std::shared_ptr<Pattern>;
 
 	/** The options to use when matching a pattern. */
 	enum PatternOptions
diff --git a/include/modules/reload.h b/include/modules/reload.h
index 415f4d963..1670237dd 100644
--- a/include/modules/reload.h
+++ b/include/modules/reload.h
@@ -39,7 +39,7 @@ namespace ReloadModule
 			{
 			}
 		};
-		typedef std::vector<Data> List;
+		using List = std::vector<Data>;
 		List list;
 
 	public:
diff --git a/include/modules/sql.h b/include/modules/sql.h
index be2cf0005..beb37e233 100644
--- a/include/modules/sql.h
+++ b/include/modules/sql.h
@@ -30,16 +30,16 @@ namespace SQL
 	class Result;
 
 	/** A list of parameter replacement values. */
-	typedef std::vector<std::string> ParamList;
+	using ParamList = std::vector<std::string>;
 
 	/** A map of parameter replacement values. */
-	typedef std::map<std::string, std::string> ParamMap;
+	using ParamMap = std::map<std::string, std::string>;
 
 	/** A single SQL field. */
-	typedef std::optional<std::string> Field;
+	using Field = std::optional<std::string>;
 
 	/** A list of SQL fields from a specific row. */
-	typedef std::vector<Field> Row;
+	using Row = std::vector<Field>;
 
 	/** An enumeration of possible error codes. */
 	enum ErrorCode
diff --git a/include/protocol.h b/include/protocol.h
index 9520aaa4d..381e4bdc4 100644
--- a/include/protocol.h
+++ b/include/protocol.h
@@ -30,7 +30,7 @@ class User;
 class CoreExport ProtocolInterface
 {
 public:
-	typedef std::vector<Server*> ServerList;
+	using ServerList = std::vector<Server*>;
 
 	virtual ~ProtocolInterface() = default;
 
diff --git a/include/socket.h b/include/socket.h
index 332bd6776..e869852b1 100644
--- a/include/socket.h
+++ b/include/socket.h
@@ -34,8 +34,8 @@
 # include <sys/un.h>
 #else
 # include <afunix.h>
-typedef USHORT in_port_t;
-typedef ADDRESS_FAMILY sa_family_t;
+using in_port_t = USHORT;
+using sa_family_t = ADDRESS_FAMILY;
 #endif
 
 #include <cerrno>
@@ -185,7 +185,7 @@ struct CoreExport FailedPort final
 };
 
 /** A list of failed port bindings, used for informational purposes on startup */
-typedef std::vector<FailedPort> FailedPortList;
+using FailedPortList = std::vector<FailedPort>;
 
 #include "socketengine.h"
 
@@ -210,7 +210,7 @@ public:
 		}
 	};
 
-	typedef std::array<IOHookProvRef, 2> IOHookProvList;
+	using IOHookProvList = std::array<IOHookProvRef, 2>;
 
 	/** IOHook providers for handling connections on this socket,
 	 * may be empty.
diff --git a/include/socketengine.h b/include/socketengine.h
index ee68def06..ff5876f45 100644
--- a/include/socketengine.h
+++ b/include/socketengine.h
@@ -297,9 +297,9 @@ private:
 
 public:
 #ifndef _WIN32
-	typedef iovec IOVector;
+	using IOVector = iovec;
 #else
-	typedef WindowsIOVec IOVector;
+	using IOVector = WindowsIOVec;
 #endif
 
 	/** Constructor.
diff --git a/include/streamsocket.h b/include/streamsocket.h
index 216c1c816..60f21e97e 100644
--- a/include/streamsocket.h
+++ b/include/streamsocket.h
@@ -123,15 +123,15 @@ public:
 	public:
 		/** One element of the queue, a continuous buffer
 		 */
-		typedef std::string Element;
+		using Element = std::string;
 
 		/** Sequence container of buffers in the queue
 		 */
-		typedef std::deque<Element> Container;
+		using Container = std::deque<Element>;
 
 		/** Container iterator
 		 */
-		typedef Container::const_iterator const_iterator;
+		using const_iterator = Container::const_iterator;
 
 		/** Return whether the queue is empty
 		 * @return True if the queue is empty, false otherwise
diff --git a/include/stringutils.h b/include/stringutils.h
index 55965ad7a..c2e79964d 100644
--- a/include/stringutils.h
+++ b/include/stringutils.h
@@ -162,7 +162,7 @@ namespace Percent
 namespace Template
 {
 	/** A mapping of variable names to their values. */
-	typedef insp::flat_map<std::string, std::string> VariableMap;
+	using VariableMap = insp::flat_map<std::string, std::string>;
 
 	/** Replaces template variables like %foo% within a string.
 	 * @param str The string to template from.
diff --git a/include/timer.h b/include/timer.h
index 2b8e91eb8..ae9f5b272 100644
--- a/include/timer.h
+++ b/include/timer.h
@@ -120,7 +120,7 @@ public:
  */
 class CoreExport TimerManager final
 {
-	typedef std::multimap<time_t, Timer*> TimerMap;
+	using TimerMap = std::multimap<time_t, Timer*>;
 
 	/** A list of all pending timers
 	 */
diff --git a/include/typedefs.h b/include/typedefs.h
index 8e6b6aa6d..1d1db99f5 100644
--- a/include/typedefs.h
+++ b/include/typedefs.h
@@ -52,9 +52,9 @@ namespace ClientProtocol
 	class MessageTagProvider;
 	class Serializer;
 
-	typedef std::vector<Message*> MessageList;
-	typedef std::vector<std::string> ParamList;
-	typedef std::string SerializedMessage;
+	using MessageList = std::vector<Message*>;
+	using ParamList = std::vector<std::string>;
+	using SerializedMessage = std::string;
 
 	struct CoreExport MessageTagData final
 	{
@@ -69,13 +69,13 @@ namespace ClientProtocol
 	 * Sorted in descending order to ensure tag names beginning with symbols (such as '+') come later when iterating
 	 * the container than tags with a normal name.
 	 */
-	typedef insp::flat_map<std::string, MessageTagData, std::greater<>> TagMap;
+	using TagMap = insp::flat_map<std::string, MessageTagData, std::greater<>>;
 }
 
 #include "base.h"
 
 /** Generic user list, used for exceptions */
-typedef std::set<User*> CUList;
+using CUList = std::set<User*>;
 
 /** A bitset of characters which are enabled/set. */
-typedef std::bitset<UCHAR_MAX + 1> CharState;
+using CharState = std::bitset<UCHAR_MAX + 1>;
diff --git a/include/usermanager.h b/include/usermanager.h
index ae9f16250..429c72ae8 100644
--- a/include/usermanager.h
+++ b/include/usermanager.h
@@ -40,18 +40,18 @@ public:
 
 	/** Container that maps IP addresses to clone counts
 	 */
-	typedef std::map<irc::sockets::cidr_mask, CloneCounts> CloneMap;
+	using CloneMap = std::map<irc::sockets::cidr_mask, CloneCounts>;
 
 	/** Sequence container in which each element is a User*
 	 */
-	typedef std::vector<User*> OperList;
+	using OperList = std::vector<User*>;
 
 	/** A list containing users who are on a services server. */
-	typedef std::vector<User*> ServiceList;
+	using ServiceList = std::vector<User*>;
 
 	/** A list holding local users
 	*/
-	typedef insp::intrusive_list<LocalUser> LocalList;
+	using LocalList = insp::intrusive_list<LocalUser>;
 
 private:
 	/** Map of IP addresses for clone counting
diff --git a/include/users.h b/include/users.h
index 8d567df6b..ca3adb7bd 100644
--- a/include/users.h
+++ b/include/users.h
@@ -414,13 +414,13 @@ public:
 
 	/** List of Memberships for this user
 	 */
-	typedef insp::intrusive_list<Membership> ChanList;
+	using ChanList = insp::intrusive_list<Membership>;
 
 	/** A list of memberships to consider when discovering the neighbors of a user. */
-	typedef std::vector<Membership*> NeighborList;
+	using NeighborList = std::vector<Membership*>;
 
 	/** A list of exceptions to the memberships that are considered when discovering the neighbours of a user. */
-	typedef std::unordered_map<User*, bool> NeighborExceptions;
+	using NeighborExceptions = std::unordered_map<User*, bool>;
 
 	/** The time at which this user's nickname was last changed. */
 	time_t nickchanged;
diff --git a/include/xline.h b/include/xline.h
index 22547bdaa..53c97da20 100644
--- a/include/xline.h
+++ b/include/xline.h
@@ -32,11 +32,11 @@ namespace Stats
 
 /** Contains a username and hostname split into two strings
  */
-typedef std::pair<std::string, std::string> UserHostPair;
+using UserHostPair = std::pair<std::string, std::string>;
 
 /** A map of xline factories
  */
-typedef std::map<std::string, XLineFactory*> XLineFactMap;
+using XLineFactMap = std::map<std::string, XLineFactory*>;
 
 /** A map of XLines indexed by string
  */
@@ -44,15 +44,15 @@ using XLineLookup = insp::casemapped_map<XLine*>;
 
 /** A map of XLineLookup maps indexed by string
  */
-typedef std::map<std::string, XLineLookup > XLineContainer;
+using XLineContainer = std::map<std::string, XLineLookup >;
 
 /** An iterator in an XLineContainer
  */
-typedef XLineContainer::iterator ContainerIter;
+using ContainerIter = XLineContainer::iterator;
 
 /** An iterator in an XLineLookup
  */
-typedef XLineLookup::iterator LookupIter;
+using LookupIter = XLineLookup::iterator;
 
 /** XLine is the base class for ban lines such as G-lines and Z-lines.
  * Modules may derive from this, and their xlines will automatically be
-- 
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