From ad78ab8c50af53094c302f676719621ce9867fb6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?V=C3=A1clav=20Slav=C3=ADk?= <vslavik@fastmail.fm>
Date: Wed, 28 Mar 2007 09:46:46 +0000
Subject: [PATCH] made wxHashMap work with any form of strings

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@45097 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---
 include/wx/hashmap.h   | 26 +++++++++++++++++---------
 src/common/hashmap.cpp | 22 ++++++----------------
 2 files changed, 23 insertions(+), 25 deletions(-)

diff --git a/include/wx/hashmap.h b/include/wx/hashmap.h
index 41aaccb230..7f7cc6a97f 100644
--- a/include/wx/hashmap.h
+++ b/include/wx/hashmap.h
@@ -561,21 +561,29 @@ public:
     wxPointerEqual& operator=(const wxPointerEqual&) { return *this; }
 };
 
-// wxString, char*, wxChar*
+// wxString, char*, wchar_t*
 class WXDLLIMPEXP_BASE wxStringHash
 {
 public:
     wxStringHash() {}
     unsigned long operator()( const wxString& x ) const
-        { return wxCharStringHash( x.c_str() ); }
-    unsigned long operator()( const wxChar* x ) const
-        { return wxCharStringHash( x ); }
-    static unsigned long wxCharStringHash( const wxChar* );
-#if wxUSE_UNICODE
+        { return stringHash( x.wx_str() ); }
+    unsigned long operator()( const wchar_t* x ) const
+        { return stringHash( x ); }
     unsigned long operator()( const char* x ) const
-        { return charStringHash( x ); }
-    static unsigned long charStringHash( const char* );
-#endif // wxUSE_UNICODE
+        { return stringHash( x ); }
+
+#if WXWIN_COMPATIBILITY_2_8
+    static unsigned long wxCharStringHash( const wxChar* x )
+        { return stringHash(x); }
+    #if wxUSE_UNICODE
+    static unsigned long charStringHash( const char* x )
+        { return stringHash(x); }
+    #endif
+#endif // WXWIN_COMPATIBILITY_2_8
+
+    static unsigned long stringHash( const wchar_t* );
+    static unsigned long stringHash( const char* );
 
     wxStringHash& operator=(const wxStringHash&) { return *this; }
 };
diff --git a/src/common/hashmap.cpp b/src/common/hashmap.cpp
index 6612272118..de00f58cab 100644
--- a/src/common/hashmap.cpp
+++ b/src/common/hashmap.cpp
@@ -22,7 +22,8 @@
 /* from requirements by Colin Plumb. */
 /* (http://burtleburtle.net/bob/hash/doobs.html) */
 /* adapted from Perl sources ( hv.h ) */
-unsigned long wxStringHash::wxCharStringHash( const wxChar* k )
+template<typename T>
+static unsigned long DoStringHash(T *k)
 {
     unsigned long hash = 0;
 
@@ -38,23 +39,12 @@ unsigned long wxStringHash::wxCharStringHash( const wxChar* k )
     return hash + (hash << 15);
 }
 
-#if wxUSE_UNICODE
-unsigned long wxStringHash::charStringHash( const char* k )
-{
-    unsigned long hash = 0;
+unsigned long wxStringHash::stringHash( const char* k )
+  { return DoStringHash(k); }
 
-    while( *k )
-    {
-        hash += *k++;
-        hash += (hash << 10);
-        hash ^= (hash >> 6);
-    }
-    hash += (hash << 3);
-    hash ^= (hash >> 11);
+unsigned long wxStringHash::stringHash( const wchar_t* k )
+  { return DoStringHash(k); }
 
-    return hash + (hash << 15);
-}
-#endif
 
 #if !wxUSE_STL || !defined(HAVE_STL_HASH_MAP)