From ea7e6a5174f1bdfc51ada864736d354706534d8b Mon Sep 17 00:00:00 2001
From: Aura Linden <aura@lindenlab.com>
Date: Tue, 14 Jan 2014 15:28:35 -0800
Subject: Some cleanup of string to wstring conversion and vice versa.

---
 indra/llcommon/stringize.h | 51 ++++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 47 insertions(+), 4 deletions(-)

(limited to 'indra/llcommon/stringize.h')

diff --git a/indra/llcommon/stringize.h b/indra/llcommon/stringize.h
index 72f2e58ce1..acae74b584 100755
--- a/indra/llcommon/stringize.h
+++ b/indra/llcommon/stringize.h
@@ -31,20 +31,63 @@
 
 #include <sstream>
 #include <boost/lambda/lambda.hpp>
+#include <llstring.h>
 
 /**
- * stringize(item) encapsulates an idiom we use constantly, using
+ * gstringize(item) encapsulates an idiom we use constantly, using
  * operator<<(std::ostringstream&, TYPE) followed by std::ostringstream::str()
+ * or their wstring equivalents
  * to render a string expressing some item.
  */
-template <typename T>
-std::string stringize(const T& item)
+template <typename CHARTYPE, typename T>
+std::basic_string<CHARTYPE> gstringize(const T& item)
 {
-    std::ostringstream out;
+    std::basic_ostringstream<CHARTYPE> out;
     out << item;
     return out.str();
 }
 
+/**
+ *partial specialization of stringize for handling wstring
+ *TODO: we should have similar specializations for wchar_t[] but not until it is needed.
+ */
+inline std::string stringize(const std::wstring& item)
+{
+    llwarns << "WARNING:  Possible narrowing" << llendl;
+    
+    std::string s;
+    
+    s = wstring_to_utf8str(item);
+    return gstringize<char>(s);
+}
+
+/**
+ * Specialization of gstringize for std::string return types
+ */
+template <typename T>
+std::string stringize(const T& item)
+{
+    return gstringize<char>(item);
+}
+
+/**
+ * Specialization for generating wstring from string.
+ * Both a convenience function and saves a miniscule amount of overhead.
+ */
+inline std::wstring wstringize(const std::string& item)
+{
+    return gstringize<wchar_t>(item.c_str());
+}
+
+/**
+ * Specialization of gstringize for std::wstring return types
+ */
+template <typename T>
+std::wstring wstringize(const T& item)
+{
+    return gstringize<wchar_t>(item);
+}
+
 /**
  * stringize_f(functor)
  */
-- 
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