From 13b55a5fda9df81d74ef952d44ec41d6e51be839 Mon Sep 17 00:00:00 2001
From: "scc%mozilla.org" <scc%mozilla.org>
Date: Sat, 2 Sep 2000 06:03:50 +0000
Subject: [PATCH] time to add that specialization of
 |nsCharSourceTraits<PRUnichar>|, not having it is probably hosing speedracer,
 r=waldemar

---
 string/public/nsCharTraits.h       | 45 +++++++++++++++++++++++++++++-
 xpcom/ds/nsCharTraits.h            | 45 +++++++++++++++++++++++++++++-
 xpcom/string/public/nsCharTraits.h | 45 +++++++++++++++++++++++++++++-
 3 files changed, 132 insertions(+), 3 deletions(-)

diff --git a/string/public/nsCharTraits.h b/string/public/nsCharTraits.h
index 269cdaa77249..56678500da95 100644
--- a/string/public/nsCharTraits.h
+++ b/string/public/nsCharTraits.h
@@ -596,7 +596,50 @@ struct nsCharSourceTraits<const char*>
       }
  };
 
-// Add specialization for |PRUnichar| only if it is needed
+
+NS_SPECIALIZE_TEMPLATE
+struct nsCharSourceTraits<const PRUnichar*>
+  {
+    typedef ptrdiff_t difference_type;
+
+#if 0
+    static
+    PRUint32
+    distance( const PRUnichar* first, const PRUnichar* last )
+      {
+        return PRUint32(last-first);
+      }
+#endif
+
+    static
+    PRUint32
+    readable_distance( const PRUnichar* s )
+      {
+        return PRUint32(nsCharTraits<PRUnichar>::length(s));
+//      return numeric_limits<PRUint32>::max();
+      }
+
+    static
+    PRUint32
+    readable_distance( const PRUnichar* first, const PRUnichar* last )
+      {
+        return PRUint32(last-first);
+      }
+
+    static
+    const PRUnichar*
+    read( const PRUnichar* s )
+      {
+        return s;
+      }
+
+    static
+    void
+    advance( PRUnichar*& s, difference_type n )
+      {
+        s += n;
+      }
+ };
 
 #endif
 
diff --git a/xpcom/ds/nsCharTraits.h b/xpcom/ds/nsCharTraits.h
index 269cdaa77249..56678500da95 100644
--- a/xpcom/ds/nsCharTraits.h
+++ b/xpcom/ds/nsCharTraits.h
@@ -596,7 +596,50 @@ struct nsCharSourceTraits<const char*>
       }
  };
 
-// Add specialization for |PRUnichar| only if it is needed
+
+NS_SPECIALIZE_TEMPLATE
+struct nsCharSourceTraits<const PRUnichar*>
+  {
+    typedef ptrdiff_t difference_type;
+
+#if 0
+    static
+    PRUint32
+    distance( const PRUnichar* first, const PRUnichar* last )
+      {
+        return PRUint32(last-first);
+      }
+#endif
+
+    static
+    PRUint32
+    readable_distance( const PRUnichar* s )
+      {
+        return PRUint32(nsCharTraits<PRUnichar>::length(s));
+//      return numeric_limits<PRUint32>::max();
+      }
+
+    static
+    PRUint32
+    readable_distance( const PRUnichar* first, const PRUnichar* last )
+      {
+        return PRUint32(last-first);
+      }
+
+    static
+    const PRUnichar*
+    read( const PRUnichar* s )
+      {
+        return s;
+      }
+
+    static
+    void
+    advance( PRUnichar*& s, difference_type n )
+      {
+        s += n;
+      }
+ };
 
 #endif
 
diff --git a/xpcom/string/public/nsCharTraits.h b/xpcom/string/public/nsCharTraits.h
index 269cdaa77249..56678500da95 100644
--- a/xpcom/string/public/nsCharTraits.h
+++ b/xpcom/string/public/nsCharTraits.h
@@ -596,7 +596,50 @@ struct nsCharSourceTraits<const char*>
       }
  };
 
-// Add specialization for |PRUnichar| only if it is needed
+
+NS_SPECIALIZE_TEMPLATE
+struct nsCharSourceTraits<const PRUnichar*>
+  {
+    typedef ptrdiff_t difference_type;
+
+#if 0
+    static
+    PRUint32
+    distance( const PRUnichar* first, const PRUnichar* last )
+      {
+        return PRUint32(last-first);
+      }
+#endif
+
+    static
+    PRUint32
+    readable_distance( const PRUnichar* s )
+      {
+        return PRUint32(nsCharTraits<PRUnichar>::length(s));
+//      return numeric_limits<PRUint32>::max();
+      }
+
+    static
+    PRUint32
+    readable_distance( const PRUnichar* first, const PRUnichar* last )
+      {
+        return PRUint32(last-first);
+      }
+
+    static
+    const PRUnichar*
+    read( const PRUnichar* s )
+      {
+        return s;
+      }
+
+    static
+    void
+    advance( PRUnichar*& s, difference_type n )
+      {
+        s += n;
+      }
+ };
 
 #endif