crlib: reworked dictionary to hashmap.

linkage: another fix to dynamic linkage.
cpp: fixed msvc warning about placement new.

inc/config.h

@@ -73,8 +73,8 @@ private:
    StringArray m_logos;
    StringArray m_avatars;
 
-   Dictionary <String, String, HashLangString> m_language;
-   Dictionary <int32, DifficultyData, IntNoHash <int32>> m_difficulty;
+   HashMap <String, String, HashLangString> m_language;
+   HashMap <int32, DifficultyData> m_difficulty;
 
    // default tables for personality weapon preferences, overridden by weapon.cfg
    SmallArray <int32> m_normalWeaponPrefs = { 0, 2, 1, 4, 5, 6, 3, 12, 10, 24, 25, 13, 11, 8, 7, 22, 23, 18, 21, 17, 19, 15, 17, 9, 14, 16 };

inc/engine.h

@@ -628,23 +628,10 @@ private:
 #  define HOOK_CAST SharedLibrary::Handle
 #endif
 
-private:
-   template <typename K> struct CharHash {
-      uint32 operator () (const char *key) const {
-         auto str = const_cast <char *> (key);
-         uint32 hash = 0;
-
-         while (*str++) {
-            hash = ((hash << 5) + hash) + *str;
-         }
-         return hash;
-      }
-   };
-
 private:
    SharedLibrary m_self;
    SimpleHook m_dlsym;
-   Dictionary <const char *, SharedLibrary::Handle, CharHash <const char *>> m_exports;
+   HashMap <StringRef, SharedLibrary::Handle> m_exports;
 
 public:
    EntityLinkage () = default;

inc/message.h

@@ -71,6 +71,7 @@ CR_DECLARE_SCOPED_ENUM (StatusIconCache,
 class MessageDispatcher final : public Singleton <MessageDispatcher> {
 private:
    using MsgFunc = void (MessageDispatcher::*) ();
+   using MsgHash = Hash <int32>;
 
 private:
    struct Args {
@@ -87,20 +88,22 @@ private:
    };
 
 private:
-   Dictionary <String, int32> m_textMsgCache; // cache strings for faster access for textmsg
-   Dictionary <String, int32> m_showMenuCache; // cache for the showmenu message
-   Dictionary <String, int32> m_statusIconCache; // cache for status icon message
-   Dictionary <String, int32> m_teamInfoCache; // cache for teaminfo message
+   HashMap <String, int32> m_textMsgCache; // cache strings for faster access for textmsg
+   HashMap <String, int32> m_showMenuCache; // cache for the showmenu message
+   HashMap <String, int32> m_statusIconCache; // cache for status icon message
+   HashMap <String, int32> m_teamInfoCache; // cache for teaminfo message
 
 private:
    Bot *m_bot {}; // owner of a message
    NetMsg m_current {}; // ongoing message id
 
    SmallArray <Args> m_args; // args collected from write* functions
-   Dictionary <String, NetMsg> m_wanted; // wanted messages
 
-   Dictionary <NetMsg, int32, IntNoHash <int32>> m_maps; // maps our message to id to engine message id
-   Dictionary <NetMsg, MsgFunc, IntNoHash <int32>> m_handlers; // maps our message id to handler function
+   HashMap <String, NetMsg> m_wanted; // wanted messages
+   HashMap <int32, NetMsg> m_reverseMap; // maps engine message id to our message id
+
+   HashMap <NetMsg, int32, MsgHash> m_maps; // maps our message to id to engine message id
+   HashMap <NetMsg, MsgFunc, MsgHash> m_handlers; // maps our message id to handler function
 
 private:
    void netMsgTextMsg ();

inc/support.h

@@ -36,8 +36,8 @@ private:
    SmallArray <Client> m_clients;
    SmallArray <Twin <String, String>> m_tags;
 
-   Dictionary <int32, String, IntNoHash <int32>> m_weaponAlias;
-   Dictionary <String, int32> m_noiseCache;
+   HashMap <int32, String> m_weaponAlias;
+   HashMap <String, int32> m_noiseCache;
    SimpleHook m_sendToHook;
 
 public: