[xml-cppdom-checkins] SF.net SVN: xml-cppdom:[657] trunk/cppdom/cppdom.h

[<pat...@us...>]

Revision: 657
          http://xml-cppdom.svn.sourceforge.net/xml-cppdom/?rev=657&view=rev
Author:   patrickh
Date:     2010-05-09 20:37:14 +0000 (Sun, 09 May 2010)

Log Message:
-----------
When using GCC 4.x or newer, prefer the use of std::tr1::unordered_map over
the deprecated, non-standard std::hash_map.

Submitted by: Jan P. Springer

Modified Paths:
--------------
    trunk/cppdom/cppdom.h

Modified: trunk/cppdom/cppdom.h
===================================================================
--- trunk/cppdom/cppdom.h	2010-05-09 20:35:24 UTC (rev 656)
+++ trunk/cppdom/cppdom.h	2010-05-09 20:37:14 UTC (rev 657)
@@ -73,11 +73,22 @@
 #define CPPDOM_USE_HASH_MAP 1
 
 // Use fastest map available
-#if defined(CPPDOM_USE_HASH_MAP) && defined(__GNUC__) && (__GNUC__ >= 3)
+#if defined(CPPDOM_USE_HASH_MAP)
 
-#include <ext/hash_map>
-#include <map>
+#  if defined(__GNUC__) && (__GNUC__ >= 4)
+#    include <tr1/unordered_map>
+#    include <map>
 
+namespace cppdom
+{
+   typedef std::tr1::unordered_map<TagNameHandle,std::string>   TagNameMap_t;
+   typedef std::tr1::unordered_map<std::string, TagNameHandle>  NameToTagMap_t;
+}
+
+#  elif defined(__GNUC__) && (__GNUC__ >= 3)
+#    include <ext/hash_map>
+#    include <map>
+
 namespace std
 { using namespace __gnu_cxx; }
 
@@ -92,16 +103,18 @@
    typedef std::hash_map<TagNameHandle,std::string>   TagNameMap_t;
    typedef std::hash_map<std::string, TagNameHandle, HashString>  NameToTagMap_t;
 }
+#  endif // #  elif defined(__GNUC__) && (__GNUC__ >= 3)
 
-#else
+#else // #if defined(CPPDOM_USE_HASH_MAP)
 
-#include <map>
+#  include <map>
+
 namespace cppdom
 {
    typedef std::map<TagNameHandle,std::string>   TagNameMap_t;
    typedef std::map<std::string, TagNameHandle>  NameToTagMap_t;
 }
-#endif
+#endif // #if defined(CPPDOM_USE_HASH_MAP)
 
 #include "config.h"
 #include "shared_ptr.h"   // the boost::shared_ptr class


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