replace llifstream and llofstream with std::ifstream and std::ofstream respectively

59 files changed, 124 insertions, 525 deletions

diff --git a/indra/llappearance/llwearable.cpp b/indra/llappearance/llwearable.cpp
index 5ca9f55ac8..1bbe878bba 100755
--- a/indra/llappearance/llwearable.cpp
+++ b/indra/llappearance/llwearable.cpp
@@ -88,7 +88,7 @@ LLAssetType::EType LLWearable::getAssetType() const
 
 BOOL LLWearable::exportFile(const std::string& filename) const
 {
-	llofstream ofs(filename.c_str(), std::ios_base::out | std::ios_base::trunc | std::ios_base::binary);
+	std::ofstream ofs(filename.c_str(), std::ios_base::out | std::ios_base::trunc | std::ios_base::binary);
 	return ofs.is_open() && exportStream(ofs);
 }
 
@@ -204,7 +204,7 @@ void LLWearable::createLayers(S32 te, LLAvatarAppearance *avatarp)
 LLWearable::EImportResult LLWearable::importFile(const std::string& filename,
 												 LLAvatarAppearance* avatarp )
 {
-	llifstream ifs(filename.c_str(), std::ios_base::in | std::ios_base::binary);
+	std::ifstream ifs(filename.c_str(), std::ios_base::in | std::ios_base::binary);
 	return (! ifs.is_open())? FAILURE : importStream(ifs, avatarp);
 }
 
diff --git a/indra/llcommon/llerror.cpp b/indra/llcommon/llerror.cpp
index 2100989316..3cb81b4e47 100755
--- a/indra/llcommon/llerror.cpp
+++ b/indra/llcommon/llerror.cpp
@@ -135,7 +135,7 @@ namespace {
 		}
 	
 	private:
-		llofstream mFile;
+		std::ofstream mFile;
 	};
 	
 	
@@ -335,7 +335,7 @@ namespace
 		LLSD configuration;
 
 		{
-			llifstream file(filename().c_str());
+			std::ifstream file(filename().c_str());
 			if (file.is_open())
 			{
 				LLSDSerialize::fromXML(configuration, file);
diff --git a/indra/llcommon/llfile.cpp b/indra/llcommon/llfile.cpp
index 77a9657306..ab432a923d 100755
--- a/indra/llcommon/llfile.cpp
+++ b/indra/llcommon/llfile.cpp
@@ -865,242 +865,3 @@ int llstdio_filebuf::sync()
 }
 #endif
 
-#if 0   // @TBDeleted
-/************** input file stream ********************************/
-
-
-llifstream::llifstream() : _M_filebuf(),
-#if LL_WINDOWS
-	std::istream(&_M_filebuf) {}
-#else
-	std::istream()
-{
-	this->init(&_M_filebuf);
-}
-#endif
-
-// explicit
-llifstream::llifstream(const std::string& _Filename, 
-		ios_base::openmode _Mode) : _M_filebuf(),
-#if LL_WINDOWS
-	std::istream(&_M_filebuf)
-{
-	llutf16string wideName = utf8str_to_utf16str( _Filename );
-	if (_M_filebuf.open(wideName.c_str(), _Mode | ios_base::in) == 0)
-	{
-		_Myios::setstate(ios_base::failbit);
-	}
-}
-#else
-	std::istream()
-{
-	this->init(&_M_filebuf);
-	this->open(_Filename.c_str(), _Mode | ios_base::in);
-}
-#endif
-
-// explicit
-llifstream::llifstream(const char* _Filename, 
-		ios_base::openmode _Mode) : _M_filebuf(),
-#if LL_WINDOWS
-	std::istream(&_M_filebuf)
-{
-	llutf16string wideName = utf8str_to_utf16str( _Filename );
-	if (_M_filebuf.open(wideName.c_str(), _Mode | ios_base::in) == 0)
-	{
-		_Myios::setstate(ios_base::failbit);
-	}
-}
-#else
-	std::istream()
-{
-	this->init(&_M_filebuf);
-	this->open(_Filename, _Mode | ios_base::in);
-}
-#endif
-
-
-bool llifstream::is_open() const
-{	// test if C stream has been opened
-	return _M_filebuf.is_open();
-}
-
-void llifstream::open(const char* _Filename, ios_base::openmode _Mode)
-{	// open a C stream with specified mode
-
-#if LL_WINDOWS
-	llutf16string wideName = utf8str_to_utf16str( _Filename );
-	if (_M_filebuf.open( wideName.c_str(), _Mode | ios_base::in) == 0)
-	{
-		_Myios::setstate(ios_base::failbit);
-	}
-	else
-	{
-		_Myios::clear();
-	}
-#else
-	if (_M_filebuf.open(_Filename, _Mode | ios_base::in) == 0)
-	{
-		this->setstate(ios_base::failbit);
-	}
-	else
-	{
-		this->clear();
-	}
-#endif
-}
-
-void llifstream::close()
-{	// close the C stream
-	if (_M_filebuf.close() == 0)
-	{
-#if LL_WINDOWS
-		_Myios::setstate(ios_base::failbit);
-#else
-		this->setstate(ios_base::failbit);
-#endif
-	}
-}
-
-
-/************** output file stream ********************************/
-
-
-llofstream::llofstream() : _M_filebuf(),
-#if LL_WINDOWS
-	std::ofstream(&_M_filebuf) {}
-#else
-	std::ofstream()
-{
-	this->init(&_M_filebuf);
-}
-#endif
-
-// explicit
-llofstream::llofstream(const std::string& _Filename,
-		ios_base::openmode _Mode) : _M_filebuf(),
-#if LL_WINDOWS
-	std::ofstream(&_M_filebuf)
-{
-	llutf16string wideName = utf8str_to_utf16str( _Filename );
-	if (_M_filebuf.open( wideName.c_str(), _Mode | ios_base::out) == 0)
-	{
-		_Myios::setstate(ios_base::failbit);
-	}
-}
-#else
-	std::ofstream()
-{
-	this->init(&_M_filebuf);
-	this->open(_Filename.c_str(), _Mode | ios_base::out);
-}
-#endif
-
-// explicit
-llofstream::llofstream(const char* _Filename,
-		ios_base::openmode _Mode) : _M_filebuf(),
-#if LL_WINDOWS
-	std::ofstream(&_M_filebuf)
-{
-	llutf16string wideName = utf8str_to_utf16str( _Filename );
-	if (_M_filebuf.open( wideName.c_str(), _Mode | ios_base::out) == 0)
-	{
-		_Myios::setstate(ios_base::failbit);
-	}
-}
-#else
-	std::ofstream()
-{
-	this->init(&_M_filebuf);
-	this->open(_Filename, _Mode | ios_base::out);
-}
-#endif
-
-bool llofstream::is_open() const
-{	// test if C stream has been opened
-	return _M_filebuf.is_open();
-}
-
-void llofstream::open(const char* _Filename, ios_base::openmode _Mode)
-{	// open a C stream with specified mode
-#if LL_WINDOWS
-	llutf16string wideName = utf8str_to_utf16str( _Filename );
-	if (_M_filebuf.open( wideName.c_str(), _Mode | ios_base::out) == 0)
-	{
-		_Myios::setstate(ios_base::failbit);
-	}
-	else
-	{
-		_Myios::clear();
-	}
-#else
-	if (_M_filebuf.open(_Filename, _Mode | ios_base::out) == 0)
-	{
-		this->setstate(ios_base::failbit);
-	}
-	else
-	{
-		this->clear();
-	}
-#endif
-}
-
-void llofstream::close()
-{	// close the C stream
-	if (_M_filebuf.close() == 0)
-	{
-#if LL_WINDOWS
-		_Myios::setstate(ios_base::failbit);
-#else
-		this->setstate(ios_base::failbit);
-#endif
-	}
-}
-
-void llofstream::~llofstream()
-{
-    try:
-    {
-        if ( is_open() )
-        {
-            flush();
-        }
-    }
-    catch (std::exception& e)
-    {
-        LL_WARNS() << "llofstream std::exception: " << e.what() << LL_ENDL;
-    }
-    catch (...)
-    {
-        LL_WARNS() << "llofstream non-std exception" << LL_ENDL;
-    }
-}
-
-/************** helper functions ********************************/
-
-std::streamsize llifstream_size(llifstream& ifstr)
-{
-	if(!ifstr.is_open()) return 0;
-	std::streampos pos_old = ifstr.tellg();
-	ifstr.seekg(0, ios_base::beg);
-	std::streampos pos_beg = ifstr.tellg();
-	ifstr.seekg(0, ios_base::end);
-	std::streampos pos_end = ifstr.tellg();
-	ifstr.seekg(pos_old, ios_base::beg);
-	return pos_end - pos_beg;
-}
-
-std::streamsize llofstream_size(llofstream& ofstr)
-{
-	if(!ofstr.is_open()) return 0;
-	std::streampos pos_old = ofstr.tellp();
-	ofstr.seekp(0, ios_base::beg);
-	std::streampos pos_beg = ofstr.tellp();
-	ofstr.seekp(0, ios_base::end);
-	std::streampos pos_end = ofstr.tellp();
-	ofstr.seekp(pos_old, ios_base::beg);
-	return pos_end - pos_beg;
-}
-
-
-#endif  // @TBDeleted
diff --git a/indra/llcommon/llfile.h b/indra/llcommon/llfile.h
index bd750b8c3c..e310d47325 100755
--- a/indra/llcommon/llfile.h
+++ b/indra/llcommon/llfile.h
@@ -192,166 +192,4 @@ protected:
 #endif
 };
 
-typedef std::ifstream llifstream;
-typedef std::ofstream llofstream;
-#if 0                           /* @TBDeleted  */
-/**
- *  @brief  Controlling input for files.
- *
- *  This class supports reading from named files, using the inherited
- *  functions from std::basic_istream.  To control the associated
- *  sequence, an instance of std::basic_filebuf (or a platform-specific derivative)
- *  which allows construction using a pre-exisintg file stream buffer. 
- *  We refer to this std::basic_filebuf (or derivative) as @c sb.
-*/
-class LL_COMMON_API llifstream	:	public	std::istream
-{
-	// input stream associated with a C stream
-public:
-	// Constructors:
-	/**
-	 *  @brief  Default constructor.
-	 *
-	 *  Initializes @c sb using its default constructor, and passes
-	 *  @c &sb to the base class initializer.  Does not open any files
-	 *  (you haven't given it a filename to open).
-	*/
-	llifstream();
-
-	/**
-	 *  @brief  Create an input file stream.
-	 *  @param  Filename  String specifying the filename.
-	 *  @param  Mode  Open file in specified mode (see std::ios_base).
-	 *
-     *  @c ios_base::in is automatically included in @a mode.
-	*/
-	explicit llifstream(const std::string& _Filename,
-			ios_base::openmode _Mode = ios_base::in);
-	explicit llifstream(const char* _Filename,
-			ios_base::openmode _Mode = ios_base::in);
-
-	/**
-	 *  @brief  The destructor does nothing.
-	 *
-	 *  The file is closed by the filebuf object, not the formatting
-	 *  stream.
-	*/
-	virtual ~llifstream() {}
-
-	// Members:
-	/**
-	 *  @brief  Wrapper to test for an open file.
-	 *  @return  @c rdbuf()->is_open()
-	*/
-	bool is_open() const;
-
-	/**
-	 *  @brief  Opens an external file.
-	 *  @param  Filename  The name of the file.
-	 *  @param  Node  The open mode flags.
-	 *
-	 *  Calls @c llstdio_filebuf::open(s,mode|in).  If that function
-	 *  fails, @c failbit is set in the stream's error state.
-	*/
-	void open(const std::string& _Filename,
-			ios_base::openmode _Mode = ios_base::in)
-	{ open(_Filename.c_str(), _Mode); }
-	void open(const char* _Filename,
-			ios_base::openmode _Mode = ios_base::in);
-
-	/**
-	 *  @brief  Close the file.
-	 *
-	 *  Calls @c llstdio_filebuf::close().  If that function
-	 *  fails, @c failbit is set in the stream's error state.
-	*/
-	void close();
-
-private:
-	llstdio_filebuf _M_filebuf;
-};
-
-
-/**
- *  @brief  Controlling output for files.
- *
- *  This class supports writing to named files, using the inherited
- *  functions from std::basic_ostream.  To control the associated
- *  sequence, an instance of std::basic_filebuf (or a platform-specific derivative)
- *  which allows construction using a pre-exisintg file stream buffer. 
- *  We refer to this std::basic_filebuf (or derivative) as @c sb.
-*/
-class LL_COMMON_API llofstream	:	public	std::ofstream
-{
-public:
-	// Constructors:
-	/**
-	 *  @brief  Default constructor.
-	 *
-	 *  Initializes @c sb using its default constructor, and passes
-	 *  @c &sb to the base class initializer.  Does not open any files
-	 *  (you haven't given it a filename to open).
-	*/
-	llofstream();
-
-	/**
-	 *  @brief  Create an output file stream.
-	 *  @param  Filename  String specifying the filename.
-	 *  @param  Mode  Open file in specified mode (see std::ios_base).
-	 *
-	 *  @c ios_base::out|ios_base::trunc is automatically included in
-	 *  @a mode.
-	*/
-	explicit llofstream(const std::string& _Filename,
-			ios_base::openmode _Mode = ios_base::out|ios_base::trunc);
-	explicit llofstream(const char* _Filename,
-			ios_base::openmode _Mode = ios_base::out|ios_base::trunc);
-
-	/**
-	 *  @brief  The destructor does nothing.
-	 *
-	 *  The file is closed by the filebuf object, not the formatting
-	 *  stream.
-	*/
-	virtual ~llofstream();
-
-	// Members:
-	/**
-	 *  @brief  Opens an external file.
-	 *  @param  Filename  The name of the file.
-	 *  @param  Node  The open mode flags.
-	 *
-	 *  Calls @c llstdio_filebuf::open(s,mode|out).  If that function
-	 *  fails, @c failbit is set in the stream's error state.
-	*/
-	void open(const std::string& _Filename,
-			ios_base::openmode _Mode = ios_base::out|ios_base::trunc)
-	{ open(_Filename.c_str(), _Mode); }
-	void open(const char* _Filename,
-			ios_base::openmode _Mode = ios_base::out|ios_base::trunc);
-
-	/**
-	 *  @brief  Close the file.
-	 *
-	 *  Calls @c llstdio_filebuf::close().  If that function
-	 *  fails, @c failbit is set in the stream's error state.
-	*/
-	void close();
-
-private:
-	llstdio_filebuf _M_filebuf;
-};
-
-
-/**
- * @breif filesize helpers.
- *
- * The file size helpers are not considered particularly efficient,
- * and should only be used for config files and the like -- not in a
- * loop.
- */
-std::streamsize LL_COMMON_API llifstream_size(llifstream& fstr);
-std::streamsize LL_COMMON_API llofstream_size(llofstream& fstr);
-#endif  /* @TBDeleted */
-
 #endif // not LL_LLFILE_H
diff --git a/indra/llcommon/llliveappconfig.cpp b/indra/llcommon/llliveappconfig.cpp
index a9b1cdf4f6..f955194009 100755
--- a/indra/llcommon/llliveappconfig.cpp
+++ b/indra/llcommon/llliveappconfig.cpp
@@ -49,7 +49,7 @@ bool LLLiveAppConfig::loadFile()
 {
 	LL_INFOS() << "LLLiveAppConfig::loadFile(): reading from "
 		<< filename() << LL_ENDL;
-    llifstream file(filename().c_str());
+    std::ifstream file(filename().c_str());
 	LLSD config;
     if (file.is_open())
     {
diff --git a/indra/llcommon/llstring.cpp b/indra/llcommon/llstring.cpp
index f3b8999883..227f81e88f 100755
--- a/indra/llcommon/llstring.cpp
+++ b/indra/llcommon/llstring.cpp
@@ -107,7 +107,7 @@ bool iswindividual(llwchar elem)
 
 bool _read_file_into_string(std::string& str, const std::string& filename)
 {
-	llifstream ifs(filename.c_str(), llifstream::binary);
+	std::ifstream ifs(filename.c_str(), std::ifstream::binary);
 	if (!ifs.is_open())
 	{
 		LL_INFOS() << "Unable to open file " << filename << LL_ENDL;
diff --git a/indra/llcrashlogger/llcrashlock.cpp b/indra/llcrashlogger/llcrashlock.cpp
index 7dde1fcd69..049aa4d135 100644
--- a/indra/llcrashlogger/llcrashlock.cpp
+++ b/indra/llcrashlogger/llcrashlock.cpp
@@ -106,7 +106,7 @@ LLSD LLCrashLock::getLockFile(std::string filename)
 {
 	LLSD lock_sd = LLSD::emptyMap();
     
-	llifstream ifile(filename.c_str());
+	std::ifstream ifile(filename.c_str());
     
 	if (ifile.is_open())
 	{									            
@@ -120,7 +120,7 @@ LLSD LLCrashLock::getLockFile(std::string filename)
 bool LLCrashLock::putLockFile(std::string filename, const LLSD& data)
 {    
     bool result = true;
-    llofstream ofile(filename.c_str());
+    std::ofstream ofile(filename.c_str());
     
 	if (!LLSDSerialize::toXML(data,ofile))
 	{
diff --git a/indra/llimage/llimage.cpp b/indra/llimage/llimage.cpp
index 16df27bb8e..ef92395d6d 100755
--- a/indra/llimage/llimage.cpp
+++ b/indra/llimage/llimage.cpp
@@ -1172,7 +1172,7 @@ static std::string find_file(std::string &name, S8 *codec)
 	for (int i=0; i<(int)(NUM_FILE_EXTENSIONS); i++)
 	{
 		tname = name + "." + std::string(file_extensions[i].exten);
-		llifstream ifs(tname.c_str(), llifstream::binary);
+		std::ifstream ifs(tname.c_str(), std::ifstream::binary);
 		if (ifs.is_open())
 		{
 			ifs.close();
@@ -1219,7 +1219,7 @@ bool LLImageRaw::createFromFile(const std::string &filename, bool j2c_lowest_mip
 		return false; // format not recognized
 	}
 
-	llifstream ifs(name.c_str(), llifstream::binary);
+	std::ifstream ifs(name.c_str(), std::ifstream::binary);
 	if (!ifs.is_open())
 	{
 		// SJB: changed from LL_INFOS() to LL_DEBUGS() to reduce spam
diff --git a/indra/llimage/llimagefilter.cpp b/indra/llimage/llimagefilter.cpp
index 41adc7be9a..92fbc8ad73 100755
--- a/indra/llimage/llimagefilter.cpp
+++ b/indra/llimage/llimagefilter.cpp
@@ -54,7 +54,7 @@ LLImageFilter::LLImageFilter(const std::string& file_path) :
     mStencilMax(1.0)
 {
     // Load filter description from file
-	llifstream filter_xml(file_path.c_str());
+	std::ifstream filter_xml(file_path.c_str());
 	if (filter_xml.is_open())
 	{
 		// Load and parse the file
diff --git a/indra/llinventory/llinventory.cpp b/indra/llinventory/llinventory.cpp
index 11647c5518..9a1aeca3cb 100755
--- a/indra/llinventory/llinventory.cpp
+++ b/indra/llinventory/llinventory.cpp
@@ -229,7 +229,7 @@ BOOL LLInventoryObject::importLegacyStream(std::istream& input_stream)
 }
 
 // exportFile should be replaced with exportLegacyStream
-// not sure whether exportLegacyStream(llofstream(fp)) would work, fp may need to get icramented...
+// not sure whether exportLegacyStream(std::ofstream(fp)) would work, fp may need to get icramented...
 BOOL LLInventoryObject::exportFile(LLFILE* fp, BOOL) const
 {
 	std::string uuid_str;
diff --git a/indra/llmessage/llhttpclient.cpp b/indra/llmessage/llhttpclient.cpp
index f8db3dded2..a36b3ff3c8 100755
--- a/indra/llmessage/llhttpclient.cpp
+++ b/indra/llmessage/llhttpclient.cpp
@@ -157,7 +157,7 @@ namespace
 		{
 			LLBufferStream ostream(channels, buffer.get());
 
-			llifstream fstream(mFilename.c_str(), std::iostream::binary | std::iostream::out);
+			std::ifstream fstream(mFilename.c_str(), std::iostream::binary | std::iostream::out);
 			if(fstream.is_open())
 			{
 				fstream.seekg(0, std::ios::end);
diff --git a/indra/llmessage/llmessageconfig.cpp b/indra/llmessage/llmessageconfig.cpp
index 64e79d6767..e91051b73e 100755
--- a/indra/llmessage/llmessageconfig.cpp
+++ b/indra/llmessage/llmessageconfig.cpp
@@ -96,7 +96,7 @@ bool LLMessageConfigFile::loadFile()
 {
 	LLSD data;
     {
-        llifstream file(filename().c_str());
+        std::ifstream file(filename().c_str());
         
         if (file.is_open())
         {
diff --git a/indra/llmessage/llservicebuilder.cpp b/indra/llmessage/llservicebuilder.cpp
index cf2e42f95c..34ab891830 100755
--- a/indra/llmessage/llservicebuilder.cpp
+++ b/indra/llmessage/llservicebuilder.cpp
@@ -34,7 +34,7 @@
 void LLServiceBuilder::loadServiceDefinitionsFromFile(
 	const std::string& service_filename)
 {
-	llifstream service_file(service_filename.c_str(), std::ios::binary);
+	std::ifstream service_file(service_filename.c_str(), std::ios::binary);
 	if(service_file.is_open())
 	{
 		LLSD service_data;
diff --git a/indra/llrender/llpostprocess.cpp b/indra/llrender/llpostprocess.cpp
index b6ea5aa7f1..7f0c9e9533 100755
--- a/indra/llrender/llpostprocess.cpp
+++ b/indra/llrender/llpostprocess.cpp
@@ -66,7 +66,7 @@ LLPostProcess::LLPostProcess(void) :
 	std::string pathName(gDirUtilp->getExpandedFilename(LL_PATH_APP_SETTINGS, "windlight", XML_FILENAME));
 	LL_DEBUGS("AppInit", "Shaders") << "Loading PostProcess Effects settings from " << pathName << LL_ENDL;
 
-	llifstream effectsXML(pathName);
+	std::ifstream effectsXML(pathName);
 
 	if (effectsXML)
 	{
@@ -153,7 +153,7 @@ void LLPostProcess::saveEffect(std::string const & effectName)
 	std::string pathName(gDirUtilp->getExpandedFilename(LL_PATH_APP_SETTINGS, "windlight", XML_FILENAME));
 	//LL_INFOS() << "Saving PostProcess Effects settings to " << pathName << LL_ENDL;
 
-	llofstream effectsXML(pathName);
+	std::ofstream effectsXML(pathName);
 
 	LLPointer<LLSDFormatter> formatter = new LLSDXMLFormatter();
 
diff --git a/indra/llui/llspellcheck.cpp b/indra/llui/llspellcheck.cpp
index 0db4281059..e6551a84c3 100755
--- a/indra/llui/llspellcheck.cpp
+++ b/indra/llui/llspellcheck.cpp
@@ -145,13 +145,13 @@ void LLSpellChecker::refreshDictionaryMap()
 
 	// Load dictionary information (file name, friendly name, ...)
     std::string user_filename(user_path + DICT_FILE_MAIN);
-	llifstream user_file(user_filename.c_str(), std::ios::binary);
+	std::ifstream user_file(user_filename.c_str(), std::ios::binary);
 	if ( (!user_file.is_open()) 
 		|| (LLSDParser::PARSE_FAILURE == LLSDSerialize::fromXMLDocument(sDictMap, user_file)) 
 		|| (0 == sDictMap.size()) )
 	{
         std::string app_filename(app_path + DICT_FILE_MAIN);
-		llifstream app_file(app_filename.c_str(), std::ios::binary);
+		std::ifstream app_file(app_filename.c_str(), std::ios::binary);
 		if ( (!app_file.is_open()) 
 			|| (LLSDParser::PARSE_FAILURE == LLSDSerialize::fromXMLDocument(sDictMap, app_file)) 
 			|| (0 == sDictMap.size()) )
@@ -161,7 +161,7 @@ void LLSpellChecker::refreshDictionaryMap()
 	}
 
 	// Load user installed dictionary information
-	llifstream custom_file(user_filename.c_str(), std::ios::binary);
+	std::ifstream custom_file(user_filename.c_str(), std::ios::binary);
 	if (custom_file.is_open())
 	{
 		LLSD custom_dict_map;
@@ -217,7 +217,7 @@ void LLSpellChecker::addToDictFile(const std::string& dict_path, const std::stri
 
 	if (gDirUtilp->fileExists(dict_path))
 	{
-		llifstream file_in(dict_path.c_str(), std::ios::in);
+		std::ifstream file_in(dict_path.c_str(), std::ios::in);
 		if (file_in.is_open())
 		{
 			std::string word; int line_num = 0;
@@ -240,7 +240,7 @@ void LLSpellChecker::addToDictFile(const std::string& dict_path, const std::stri
 
 	word_list.push_back(word);
 
-	llofstream file_out(dict_path.c_str(), std::ios::out | std::ios::trunc);	
+	std::ofstream file_out(dict_path.c_str(), std::ios::out | std::ios::trunc);	
 	if (file_out.is_open())
 	{
 		file_out << word_list.size() << std::endl;
@@ -354,7 +354,7 @@ void LLSpellChecker::initHunspell(const std::string& dict_language)
 
 		if (gDirUtilp->fileExists(user_path + DICT_FILE_IGNORE))
 		{
-			llifstream file_in((user_path + DICT_FILE_IGNORE).c_str(), std::ios::in);
+			std::ifstream file_in((user_path + DICT_FILE_IGNORE).c_str(), std::ios::in);
 			if (file_in.is_open())
 			{
 				std::string word; int idxLine = 0;
@@ -466,7 +466,7 @@ LLSD LLSpellChecker::loadUserDictionaryMap()
 {
 	LLSD dict_map;
     std::string dict_filename(getDictionaryUserPath() + DICT_FILE_USER);
-	llifstream dict_file(dict_filename.c_str(), std::ios::binary);
+	std::ifstream dict_file(dict_filename.c_str(), std::ios::binary);
 	if (dict_file.is_open())
 	{
 		LLSDSerialize::fromXMLDocument(dict_map, dict_file);
@@ -478,7 +478,7 @@ LLSD LLSpellChecker::loadUserDictionaryMap()
 // static
 void LLSpellChecker::saveUserDictionaryMap(const LLSD& dict_map)
 {
-	llofstream dict_file((getDictionaryUserPath() + DICT_FILE_USER).c_str(), std::ios::trunc);
+	std::ofstream dict_file((getDictionaryUserPath() + DICT_FILE_USER).c_str(), std::ios::trunc);
 	if (dict_file.is_open())
 	{
 		LLSDSerialize::toPrettyXML(dict_map, dict_file);
diff --git a/indra/llui/lltextparser.cpp b/indra/llui/lltextparser.cpp
index 0b36241da0..086d937753 100755
--- a/indra/llui/lltextparser.cpp
+++ b/indra/llui/lltextparser.cpp
@@ -211,7 +211,7 @@ void LLTextParser::loadKeywords()
 	std::string filename=getFileName();
 	if (!filename.empty())
 	{
-		llifstream file;
+		std::ifstream file;
 		file.open(filename.c_str());
 		if (file.is_open())
 		{
@@ -231,7 +231,7 @@ bool LLTextParser::saveToDisk(LLSD highlights)
 		LL_WARNS() << "LLTextParser::saveToDisk() no valid user directory." << LL_ENDL; 
 		return FALSE;
 	}	
-	llofstream file;
+	std::ofstream file;
 	file.open(filename.c_str());
 	LLSDSerialize::toPrettyXML(mHighlights, file);
 	file.close();
diff --git a/indra/llui/llviewereventrecorder.h b/indra/llui/llviewereventrecorder.h
index 375efcc3de..fb00572817 100644
--- a/indra/llui/llviewereventrecorder.h
+++ b/indra/llui/llviewereventrecorder.h
@@ -79,7 +79,7 @@ class LLViewerEventRecorder : public LLSingleton<LLViewerEventRecorder>
   bool logEvents;
 
   std::string mLogFilename;
-  llofstream  mLog; 
+  std::ofstream  mLog; 
 
 
  private:
diff --git a/indra/llvfs/llpidlock.cpp b/indra/llvfs/llpidlock.cpp
index 6572edead3..26cbce1028 100644
--- a/indra/llvfs/llpidlock.cpp
+++ b/indra/llvfs/llpidlock.cpp
@@ -95,7 +95,7 @@ LLPidLockFile& LLPidLockFile::instance()
 
 void LLPidLockFile::writeLockFile(LLSD pids)
 {
-	llofstream ofile(mLockName.c_str());
+	std::ofstream ofile(mLockName.c_str());
 
 	if (!LLSDSerialize::toXML(pids,ofile))
 	{
@@ -119,7 +119,7 @@ bool LLPidLockFile::requestLock(LLNameTable<void *> *name_table, bool autosave,
 	LLSD out_pids;
 	out_pids.append( (LLSD::Integer)mPID );
 
-	llifstream ifile(mLockName.c_str());
+	std::ifstream ifile(mLockName.c_str());
 
 	if (ifile.is_open()) 
 	{									//If file exists, we need to decide whether or not to continue.
@@ -175,7 +175,7 @@ bool LLPidLockFile::checkLock()
 
 void LLPidLockFile::releaseLock()
 {
-	llifstream ifile(mLockName.c_str());
+	std::ifstream ifile(mLockName.c_str());
 	LLSD in_pids;
 	LLSD out_pids;
 	bool write_file=FALSE;
diff --git a/indra/llxml/llcontrol.cpp b/indra/llxml/llcontrol.cpp
index 4e3d0ab392..079545d31f 100755
--- a/indra/llxml/llcontrol.cpp
+++ b/indra/llxml/llcontrol.cpp
@@ -832,7 +832,7 @@ U32 LLControlGroup::saveToFile(const std::string& filename, BOOL nondefault_only
 			++num_saved;
 		}
 	}
-	llofstream file;
+	std::ofstream file;
 	file.open(filename.c_str());
 	if (file.is_open())
 	{
@@ -852,7 +852,7 @@ U32 LLControlGroup::saveToFile(const std::string& filename, BOOL nondefault_only
 U32 LLControlGroup::loadFromFile(const std::string& filename, bool set_default_values, bool save_values)
 {
 	LLSD settings;
-	llifstream infile;
+	std::ifstream infile;
 	infile.open(filename.c_str());
 	if(!infile.is_open())
 	{
diff --git a/indra/llxml/tests/llcontrol_test.cpp b/indra/llxml/tests/llcontrol_test.cpp
index 2b691ffbb1..bc17a88f7c 100755
--- a/indra/llxml/tests/llcontrol_test.cpp
+++ b/indra/llxml/tests/llcontrol_test.cpp
@@ -80,7 +80,7 @@ namespace tut
 		}
 		void writeSettingsFile(const LLSD& config)
 		{
-			llofstream file(mTestConfigFile.c_str());
+			std::ofstream file(mTestConfigFile.c_str());
 			if (file.is_open())
 			{
 				LLSDSerialize::toPrettyXML(config, file);
diff --git a/indra/newview/llagentpilot.cpp b/indra/newview/llagentpilot.cpp
index cfc445f998..4b3b0e42e0 100755
--- a/indra/newview/llagentpilot.cpp
+++ b/indra/newview/llagentpilot.cpp
@@ -84,7 +84,7 @@ void LLAgentPilot::loadTxt(const std::string& filename)
 		return;
 	}
 	
-	llifstream file(filename.c_str());
+	std::ifstream file(filename.c_str());
 
 	if (!file)
 	{
@@ -125,7 +125,7 @@ void LLAgentPilot::loadXML(const std::string& filename)
 		return;
 	}
 	
-	llifstream file(filename.c_str());
+	std::ifstream file(filename.c_str());
 
 	if (!file)
 	{
@@ -167,7 +167,7 @@ void LLAgentPilot::save()
 
 void LLAgentPilot::saveTxt(const std::string& filename)
 {
-	llofstream file;
+	std::ofstream file;
 	file.open(filename.c_str());
 
 	if (!file)
@@ -190,7 +190,7 @@ void LLAgentPilot::saveTxt(const std::string& filename)
 
 void LLAgentPilot::saveXML(const std::string& filename)
 {
-	llofstream file;
+	std::ofstream file;
 	file.open(filename.c_str());
 
 	if (!file)
diff --git a/indra/newview/llappviewer.cpp b/indra/newview/llappviewer.cpp
index 9668da2522..b2c74854ff 100755
--- a/indra/newview/llappviewer.cpp
+++ b/indra/newview/llappviewer.cpp
@@ -3273,7 +3273,7 @@ void LLAppViewer::writeDebugInfo(bool isStatic)
         : getDynamicDebugFile() );
     
 	LL_INFOS() << "Opening debug file " << *debug_filename << LL_ENDL;
-	llofstream out_file(debug_filename->c_str());
+	std::ofstream out_file(debug_filename->c_str());
     
     isStatic ?  LLSDSerialize::toPrettyXML(gDebugInfo, out_file)
              :  LLSDSerialize::toPrettyXML(gDebugInfo["Dynamic"], out_file);
@@ -3762,7 +3762,7 @@ void LLAppViewer::handleViewerCrash()
 	{
 		std::string filename;
 		filename = gDirUtilp->getExpandedFilename(LL_PATH_DUMP, "stats.log");
-		llofstream file(filename.c_str(), std::ios_base::binary);
+		std::ofstream file(filename.c_str(), std::ios_base::binary);
 		if(file.good())
 		{
 			LL_INFOS() << "Handle viewer crash generating stats log." << LL_ENDL;
@@ -4650,7 +4650,7 @@ void LLAppViewer::loadNameCache()
 	std::string filename =
 		gDirUtilp->getExpandedFilename(LL_PATH_CACHE, "avatar_name_cache.xml");
 	LL_INFOS("AvNameCache") << filename << LL_ENDL;
-	llifstream name_cache_stream(filename.c_str());
+	std::ifstream name_cache_stream(filename.c_str());
 	if(name_cache_stream.is_open())
 	{
 		if ( ! LLAvatarNameCache::importFile(name_cache_stream))
@@ -4665,7 +4665,7 @@ void LLAppViewer::loadNameCache()
 
 	std::string name_cache;
 	name_cache = gDirUtilp->getExpandedFilename(LL_PATH_CACHE, "name.cache");
-	llifstream cache_file(name_cache.c_str());
+	std::ifstream cache_file(name_cache.c_str());
 	if(cache_file.is_open())
 	{
 		if(gCacheName->importFile(cache_file)) return;
@@ -4677,7 +4677,7 @@ void LLAppViewer::saveNameCache()
 	// display names cache
 	std::string filename =
 		gDirUtilp->getExpandedFilename(LL_PATH_CACHE, "avatar_name_cache.xml");
-	llofstream name_cache_stream(filename.c_str());
+	std::ofstream name_cache_stream(filename.c_str());
 	if(name_cache_stream.is_open())
 	{
 		LLAvatarNameCache::exportFile(name_cache_stream);
@@ -4688,7 +4688,7 @@ void LLAppViewer::saveNameCache()
     {
         std::string name_cache;
         name_cache = gDirUtilp->getExpandedFilename(LL_PATH_CACHE, "name.cache");
-        llofstream cache_file(name_cache.c_str());
+        std::ofstream cache_file(name_cache.c_str());
         if(cache_file.is_open())
         {
             gCacheName->exportFile(cache_file);
diff --git a/indra/newview/llautoreplace.cpp b/indra/newview/llautoreplace.cpp
index dd9354fe3a..62e32eac00 100755
--- a/indra/newview/llautoreplace.cpp
+++ b/indra/newview/llautoreplace.cpp
@@ -148,7 +148,7 @@ void LLAutoReplace::loadFromSettings()
 	if(gDirUtilp->fileExists(filename))
 	{
 		LLSD userSettings;
-		llifstream file;
+		std::ifstream file;
 		file.open(filename.c_str());
 		if (file.is_open())
 		{
@@ -173,7 +173,7 @@ void LLAutoReplace::loadFromSettings()
 		if(gDirUtilp->fileExists(defaultName))
 		{
 			LLSD appDefault;
-			llifstream file;
+			std::ifstream file;
 			file.open(defaultName.c_str());
 			if (file.is_open())
 			{
@@ -209,7 +209,7 @@ void LLAutoReplace::loadFromSettings()
 void LLAutoReplace::saveToUserSettings()
 {
 	std::string filename=getUserSettingsFileName();
-	llofstream file;
+	std::ofstream file;
 	file.open(filename.c_str());
 	LLSDSerialize::toPrettyXML(mSettings.asLLSD(), file);
 	file.close();
diff --git a/indra/newview/llavatariconctrl.cpp b/indra/newview/llavatariconctrl.cpp
index 281e591b48..fd96e65edd 100755
--- a/indra/newview/llavatariconctrl.cpp
+++ b/indra/newview/llavatariconctrl.cpp
@@ -76,7 +76,7 @@ void LLAvatarIconIDCache::load	()
 	
 	// build filename for each user
 	std::string resolved_filename = gDirUtilp->getExpandedFilename(LL_PATH_CACHE, mFilename);
-	llifstream file(resolved_filename.c_str());
+	std::ifstream file(resolved_filename.c_str());
 
 	if (!file.is_open())
 		return;
@@ -114,7 +114,7 @@ void LLAvatarIconIDCache::save	()
 	std::string resolved_filename = gDirUtilp->getExpandedFilename(LL_PATH_CACHE, mFilename);
 
 	// open a file for writing
-	llofstream file (resolved_filename.c_str());
+	std::ofstream file (resolved_filename.c_str());
 	if (!file.is_open())
 	{
 		LL_WARNS() << "can't open avatar icons cache file\"" << mFilename << "\" for writing" << LL_ENDL;
diff --git a/indra/newview/llcommandlineparser.cpp b/indra/newview/llcommandlineparser.cpp
index 1819fc74ee..9d4f7f6dd8 100755
--- a/indra/newview/llcommandlineparser.cpp
+++ b/indra/newview/llcommandlineparser.cpp
@@ -621,7 +621,7 @@ void LLControlGroupCLP::configure(const std::string& config_filename, LLControlG
     // members of a control group.
     LLSD clpConfigLLSD;
     
-    llifstream input_stream;
+    std::ifstream input_stream;
     input_stream.open(config_filename.c_str(), std::ios::in | std::ios::binary);
 
     if(input_stream.is_open())
diff --git a/indra/newview/llfavoritesbar.cpp b/indra/newview/llfavoritesbar.cpp
index fc9e85caf8..4c8a4ece70 100755
--- a/indra/newview/llfavoritesbar.cpp
+++ b/indra/newview/llfavoritesbar.cpp
@@ -1469,7 +1469,7 @@ void LLFavoritesOrderStorage::destroyClass()
 
 
 	std::string old_filename = gDirUtilp->getExpandedFilename(LL_PATH_USER_SETTINGS, "stored_favorites.xml");
-	llifstream file;
+	std::ifstream file;
 	file.open(old_filename.c_str());
 	if (file.is_open())
 	{
@@ -1507,7 +1507,7 @@ void LLFavoritesOrderStorage::load()
 	std::string filename = getSavedOrderFileName();
 
 	LLSD settings_llsd;
-	llifstream file;
+	std::ifstream file;
 	file.open(filename.c_str());
 	if (file.is_open())
 	{
@@ -1541,7 +1541,7 @@ void LLFavoritesOrderStorage::saveFavoritesSLURLs()
 	std::string filename = getStoredFavoritesFilename();
     if (!filename.empty())
     {
-        llifstream in_file;
+        std::ifstream in_file;
         in_file.open(filename.c_str());
         LLSD fav_llsd;
         if (in_file.is_open())
@@ -1588,7 +1588,7 @@ void LLFavoritesOrderStorage::saveFavoritesSLURLs()
         // as we'll compare it with the stored credentials in the login panel.
         fav_llsd[av_name.getUserName()] = user_llsd;
 
-        llofstream file;
+        std::ofstream file;
         file.open(filename.c_str());
         if ( file.is_open() )
         {
@@ -1613,7 +1613,7 @@ void LLFavoritesOrderStorage::removeFavoritesRecordOfUser()
     if (!filename.empty())
     {
         LLSD fav_llsd;
-        llifstream file;
+        std::ifstream file;
         file.open(filename.c_str());
         if (file.is_open())
         {
@@ -1630,7 +1630,7 @@ void LLFavoritesOrderStorage::removeFavoritesRecordOfUser()
                 fav_llsd.erase(av_name.getUserName());
             }
         
-            llofstream out_file;
+            std::ofstream out_file;
             out_file.open(filename.c_str());
             if ( out_file.is_open() )
             {
@@ -1686,7 +1686,7 @@ void LLFavoritesOrderStorage::save()
                 settings_llsd[iter->first.asString()] = iter->second;
             }
 
-            llofstream file;
+            std::ofstream file;
             file.open(filename.c_str());
             if ( file.is_open() )
             {
diff --git a/indra/newview/llfeaturemanager.cpp b/indra/newview/llfeaturemanager.cpp
index ea39f812fd..12afb552eb 100755
--- a/indra/newview/llfeaturemanager.cpp
+++ b/indra/newview/llfeaturemanager.cpp
@@ -326,7 +326,7 @@ bool LLFeatureManager::parseFeatureTable(std::string filename)
 {
 	LL_INFOS("RenderInit") << "Attempting to parse feature table from " << filename << LL_ENDL;
 
-	llifstream file;
+	std::ifstream file;
 	std::string name;
 	U32		version;
 	
diff --git a/indra/newview/llfloaterabout.cpp b/indra/newview/llfloaterabout.cpp
index b342d8fdf3..5529111b7f 100755
--- a/indra/newview/llfloaterabout.cpp
+++ b/indra/newview/llfloaterabout.cpp
@@ -154,7 +154,7 @@ BOOL LLFloaterAbout::postBuild()
 
 	// Get the names of contributors, extracted from .../doc/contributions.txt by viewer_manifest.py at build time
 	std::string contributors_path = gDirUtilp->getExpandedFilename(LL_PATH_APP_SETTINGS,"contributors.txt");
-	llifstream contrib_file;
+	std::ifstream contrib_file;
 	std::string contributors;
 	contrib_file.open(contributors_path.c_str());		/* Flawfinder: ignore */
 	if (contrib_file.is_open())
@@ -172,7 +172,7 @@ BOOL LLFloaterAbout::postBuild()
 
     // Get the Versions and Copyrights, created at build time
 	std::string licenses_path = gDirUtilp->getExpandedFilename(LL_PATH_APP_SETTINGS,"packages-info.txt");
-	llifstream licenses_file;
+	std::ifstream licenses_file;
 	licenses_file.open(licenses_path.c_str());		/* Flawfinder: ignore */
 	if (licenses_file.is_open())
 	{
diff --git a/indra/newview/llfloaterautoreplacesettings.cpp b/indra/newview/llfloaterautoreplacesettings.cpp
index 6e56e929df..a16ecf2a80 100755
--- a/indra/newview/llfloaterautoreplacesettings.cpp
+++ b/indra/newview/llfloaterautoreplacesettings.cpp
@@ -353,7 +353,7 @@ void LLFloaterAutoReplaceSettings::onImportList()
 	LLFilePicker& picker = LLFilePicker::instance();
 	if( picker.getOpenFile( LLFilePicker::FFLOAD_XML) )
 	{
-		llifstream file;
+		std::ifstream file;
 		file.open(picker.getFirstFile().c_str());
 		LLSD newList;
 		if (file.is_open())
@@ -545,7 +545,7 @@ void LLFloaterAutoReplaceSettings::onExportList()
 	LLFilePicker& picker = LLFilePicker::instance();
 	if( picker.getSaveFile( LLFilePicker::FFSAVE_XML, listFileName) )
 	{
-		llofstream file;
+		std::ofstream file;
 		file.open(picker.getFirstFile().c_str());
 		LLSDSerialize::toPrettyXML(*list, file);
 		file.close();
diff --git a/indra/newview/llfloatermodelpreview.cpp b/indra/newview/llfloatermodelpreview.cpp
index b9113d265a..e3ca48e4ae 100755
--- a/indra/newview/llfloatermodelpreview.cpp
+++ b/indra/newview/llfloatermodelpreview.cpp
@@ -2155,7 +2155,7 @@ bool LLModelLoader::loadFromSLM(const std::string& filename)
 
 	S32 file_size = (S32) stat.st_size;
 	
-	llifstream ifstream(filename.c_str(), std::ifstream::in | std::ifstream::binary);
+	std::ifstream ifstream(filename.c_str(), std::ifstream::in | std::ifstream::binary);
 	LLSD data;
 	LLSDSerialize::fromBinary(data, ifstream, file_size);
 	ifstream.close();
@@ -3513,7 +3513,7 @@ void LLModelPreview::saveUploadData(const std::string& filename, bool save_skinw
 		data["instance"][i] = instance.asLLSD();
 	}
 
-	llofstream out(filename.c_str(), std::ios_base::out | std::ios_base::binary);
+	std::ofstream out(filename.c_str(), std::ios_base::out | std::ios_base::binary);
 	LLSDSerialize::toBinary(data, out);
 	out.flush();
 	out.close();
diff --git a/indra/newview/llfloaterspellchecksettings.cpp b/indra/newview/llfloaterspellchecksettings.cpp
index 5124dae147..63346f42ef 100755
--- a/indra/newview/llfloaterspellchecksettings.cpp
+++ b/indra/newview/llfloaterspellchecksettings.cpp
@@ -351,7 +351,7 @@ void LLFloaterSpellCheckerImport::onBtnOK()
 
 		LLSD custom_dict_map;
         std::string custom_filename(LLSpellChecker::getDictionaryUserPath() + "user_dictionaries.xml");
-		llifstream custom_file_in(custom_filename.c_str());
+		std::ifstream custom_file_in(custom_filename.c_str());
 		if (custom_file_in.is_open())
 		{
 			LLSDSerialize::fromXMLDocument(custom_dict_map, custom_file_in);
@@ -373,7 +373,7 @@ void LLFloaterSpellCheckerImport::onBtnOK()
 			custom_dict_map.append(custom_dict_info);
 		}
 
-		llofstream custom_file_out(custom_filename.c_str(), std::ios::trunc);
+		std::ofstream custom_file_out(custom_filename.c_str(), std::ios::trunc);
 		if (custom_file_out.is_open())
 		{
 			LLSDSerialize::toPrettyXML(custom_dict_map, custom_file_out);
diff --git a/indra/newview/lllocationhistory.cpp b/indra/newview/lllocationhistory.cpp
index 162d6e003e..57f53bd0d9 100755
--- a/indra/newview/lllocationhistory.cpp
+++ b/indra/newview/lllocationhistory.cpp
@@ -127,7 +127,7 @@ void LLLocationHistory::save() const
 	}
 
 	// open a file for writing
-	llofstream file(resolved_filename.c_str());
+	std::ofstream file(resolved_filename.c_str());
 	if (!file.is_open())
 	{
 		LL_WARNS() << "can't open location history file \"" << mFilename << "\" for writing" << LL_ENDL;
@@ -148,7 +148,7 @@ void LLLocationHistory::load()
 	
 	// build filename for each user
 	std::string resolved_filename = gDirUtilp->getExpandedFilename(LL_PATH_PER_SL_ACCOUNT, mFilename);
-	llifstream file(resolved_filename.c_str());
+	std::ifstream file(resolved_filename.c_str());
 
 	if (!file.is_open())
 	{
diff --git a/indra/newview/lllogchat.cpp b/indra/newview/lllogchat.cpp
index 7ddacf3033..8585fa6078 100755
--- a/indra/newview/lllogchat.cpp
+++ b/indra/newview/lllogchat.cpp
@@ -302,7 +302,7 @@ void LLLogChat::saveHistory(const std::string& filename,
 		return;
 	}
 	
-	llofstream file(LLLogChat::makeLogFileName(filename).c_str(), std::ios_base::app);
+	std::ofstream file(LLLogChat::makeLogFileName(filename).c_str(), std::ios_base::app);
 	if (!file.is_open())
 	{
 		LL_WARNS() << "Couldn't open chat history log! - " + filename << LL_ENDL;
diff --git a/indra/newview/llnotificationstorage.cpp b/indra/newview/llnotificationstorage.cpp
index 3418b33d37..315084788e 100755
--- a/indra/newview/llnotificationstorage.cpp
+++ b/indra/newview/llnotificationstorage.cpp
@@ -87,7 +87,7 @@ LLNotificationStorage::~LLNotificationStorage()
 bool LLNotificationStorage::writeNotifications(const LLSD& pNotificationData) const
 {
 
-	llofstream notifyFile(mFileName.c_str());
+	std::ofstream notifyFile(mFileName.c_str());
 	bool didFileOpen = notifyFile.is_open();
 
 	if (!didFileOpen)
@@ -113,7 +113,7 @@ bool LLNotificationStorage::readNotifications(LLSD& pNotificationData, bool is_n
 
 	pNotificationData.clear();
 
-	llifstream notifyFile(filename.c_str());
+	std::ifstream notifyFile(filename.c_str());
 	didFileRead = notifyFile.is_open();
 	if (!didFileRead)
 	{
diff --git a/indra/newview/llpanellogin.cpp b/indra/newview/llpanellogin.cpp
index cc8c3edd51..8b9cd9c88a 100755
--- a/indra/newview/llpanellogin.cpp
+++ b/indra/newview/llpanellogin.cpp
@@ -307,7 +307,7 @@ void LLPanelLogin::addFavoritesToStartLocation()
 	updateLoginButtons();
 
 	LLSD fav_llsd;
-	llifstream file;
+	std::ifstream file;
 	file.open(filename.c_str());
 	if (!file.is_open())
 	{
diff --git a/indra/newview/llpanelmaininventory.cpp b/indra/newview/llpanelmaininventory.cpp
index 17c0b226d0..87f27ea8ef 100755
--- a/indra/newview/llpanelmaininventory.cpp
+++ b/indra/newview/llpanelmaininventory.cpp
@@ -162,7 +162,7 @@ BOOL LLPanelMainInventory::postBuild()
 	// Now load the stored settings from disk, if available.
 	std::string filterSaveName(gDirUtilp->getExpandedFilename(LL_PATH_PER_SL_ACCOUNT, FILTERS_FILENAME));
 	LL_INFOS() << "LLPanelMainInventory::init: reading from " << filterSaveName << LL_ENDL;
-	llifstream file(filterSaveName.c_str());
+	std::ifstream file(filterSaveName.c_str());
 	LLSD savedFilterState;
 	if (file.is_open())
 	{
@@ -243,7 +243,7 @@ LLPanelMainInventory::~LLPanelMainInventory( void )
 	}
 
 	std::string filterSaveName(gDirUtilp->getExpandedFilename(LL_PATH_PER_SL_ACCOUNT, FILTERS_FILENAME));
-	llofstream filtersFile(filterSaveName.c_str());
+	std::ofstream filtersFile(filterSaveName.c_str());
 	if(!LLSDSerialize::toPrettyXML(filterRoot, filtersFile))
 	{
 		LL_WARNS() << "Could not write to filters save file " << filterSaveName << LL_ENDL;
diff --git a/indra/newview/llsearchhistory.cpp b/indra/newview/llsearchhistory.cpp
index 0ea05a03d6..0bc88590da 100755
--- a/indra/newview/llsearchhistory.cpp
+++ b/indra/newview/llsearchhistory.cpp
@@ -43,7 +43,7 @@ bool LLSearchHistory::load()
 {
 	// build filename for each user
 	std::string resolved_filename = getHistoryFilePath();
-	llifstream file(resolved_filename.c_str());
+	std::ifstream file(resolved_filename.c_str());
 	if (!file.is_open())
 	{
 		return false;
@@ -76,7 +76,7 @@ bool LLSearchHistory::save()
 	// build filename for each user
 	std::string resolved_filename = getHistoryFilePath();
 	// open a file for writing
-	llofstream file(resolved_filename.c_str());
+	std::ofstream file(resolved_filename.c_str());
 	if (!file.is_open())
 	{
 		return false;
diff --git a/indra/newview/llsechandler_basic.cpp b/indra/newview/llsechandler_basic.cpp
index 40516f9bbb..c904b95666 100755
--- a/indra/newview/llsechandler_basic.cpp
+++ b/indra/newview/llsechandler_basic.cpp
@@ -640,7 +640,7 @@ LLBasicCertificateStore::~LLBasicCertificateStore()
 // persist the store
 void LLBasicCertificateStore::save()
 {
-	llofstream file_store(mFilename.c_str(), std::ios_base::binary);
+	std::ofstream file_store(mFilename.c_str(), std::ios_base::binary);
 	if(!file_store.fail())
 	{
 		for(iterator cert = begin();
@@ -1245,8 +1245,8 @@ void LLSecAPIBasicHandler::_readProtectedData()
 {	
 	// attempt to load the file into our map
 	LLPointer<LLSDParser> parser = new LLSDXMLParser();
-	llifstream protected_data_stream(mProtectedDataFilename.c_str(), 
-									llifstream::binary);
+	std::ifstream protected_data_stream(mProtectedDataFilename.c_str(), 
+									std::ifstream::binary);
 
 	if (!protected_data_stream.fail()) {
 		U8 salt[STORE_SALT_SIZE];
@@ -1330,7 +1330,7 @@ void LLSecAPIBasicHandler::_writeProtectedData()
 	// an error.
 	std::string tmp_filename = mProtectedDataFilename + ".tmp";
 	
-	llofstream protected_data_stream(tmp_filename.c_str(), 
+	std::ofstream protected_data_stream(tmp_filename.c_str(), 
                                      std::ios_base::binary);
 	try
 	{
@@ -1568,7 +1568,7 @@ std::string LLSecAPIBasicHandler::_legacyLoadPassword()
 {
 	const S32 HASHED_LENGTH = 32;	
 	std::vector<U8> buffer(HASHED_LENGTH);
-	llifstream password_file(mLegacyPasswordPath.c_str(), llifstream::binary);
+	std::ifstream password_file(mLegacyPasswordPath.c_str(), std::ifstream::binary);
 	
 	if(password_file.fail())
 	{
diff --git a/indra/newview/llsyntaxid.cpp b/indra/newview/llsyntaxid.cpp
index 802dff1ead..cbbc238b24 100644
--- a/indra/newview/llsyntaxid.cpp
+++ b/indra/newview/llsyntaxid.cpp
@@ -83,7 +83,7 @@ public:
 		const std::string xml = str.str();
 
 		// save the str to disk, usually to the cache.
-		llofstream file(mFileSpec.c_str(), std::ios_base::out);
+		std::ofstream file(mFileSpec.c_str(), std::ios_base::out);
 		file.write(xml.c_str(), str.str().size());
 		file.close();
 
@@ -268,7 +268,7 @@ void LLSyntaxIdLSL::loadDefaultKeywordsIntoLLSD()
 void LLSyntaxIdLSL::loadKeywordsIntoLLSD()
 {
 	LLSD content;
-	llifstream file;
+	std::ifstream file;
 	file.open(mFullFileSpec.c_str());
 	if (file.is_open())
 	{
diff --git a/indra/newview/llteleporthistorystorage.cpp b/indra/newview/llteleporthistorystorage.cpp
index 8a5704939a..36257c8bf2 100755
--- a/indra/newview/llteleporthistorystorage.cpp
+++ b/indra/newview/llteleporthistorystorage.cpp
@@ -164,7 +164,7 @@ void LLTeleportHistoryStorage::save()
 	std::string resolvedFilename = gDirUtilp->getExpandedFilename(LL_PATH_PER_SL_ACCOUNT, mFilename);
 
 	// open the history file for writing
-	llofstream file(resolvedFilename.c_str());
+	std::ofstream file(resolvedFilename.c_str());
 	if (!file.is_open())
 	{
 		LL_WARNS() << "can't open teleport history file \"" << mFilename << "\" for writing" << LL_ENDL;
@@ -186,7 +186,7 @@ void LLTeleportHistoryStorage::load()
 	std::string resolved_filename = gDirUtilp->getExpandedFilename(LL_PATH_PER_SL_ACCOUNT, mFilename);
 
 	// open the history file for reading
-	llifstream file(resolved_filename.c_str());
+	std::ifstream file(resolved_filename.c_str());
 	if (!file.is_open())
 	{
 		LL_WARNS() << "can't load teleport history from file \"" << mFilename << "\"" << LL_ENDL;
diff --git a/indra/newview/llurlhistory.cpp b/indra/newview/llurlhistory.cpp
index f7064e152a..d45891ec45 100755
--- a/indra/newview/llurlhistory.cpp
+++ b/indra/newview/llurlhistory.cpp
@@ -46,7 +46,7 @@ bool LLURLHistory::loadFile(const std::string& filename)
 
     std::string user_filename(gDirUtilp->getLindenUserDir() + gDirUtilp->getDirDelimiter() + filename);
 
-    llifstream file(user_filename.c_str());
+    std::ifstream file(user_filename.c_str());
     if (file.is_open())
     {
         LLSDSerialize::fromXML(data, file);
@@ -79,7 +79,7 @@ bool LLURLHistory::saveFile(const std::string& filename)
 	}
 
 	temp_str += gDirUtilp->getDirDelimiter() + filename;
-	llofstream out(temp_str.c_str());
+	std::ofstream out(temp_str.c_str());
 	if (!out.good())
 	{
 		LL_WARNS() << "Unable to open " << temp_str << " for output." << LL_ENDL;
diff --git a/indra/newview/llurlwhitelist.cpp b/indra/newview/llurlwhitelist.cpp
index 3a7285974e..c401f86212 100755
--- a/indra/newview/llurlwhitelist.cpp
+++ b/indra/newview/llurlwhitelist.cpp
@@ -87,7 +87,7 @@ bool LLUrlWhiteList::load ()
 	std::string resolvedFilename = gDirUtilp->getExpandedFilename ( LL_PATH_PER_SL_ACCOUNT, mFilename );
 
 	// open a file for reading
-	llifstream file(resolvedFilename.c_str());
+	std::ifstream file(resolvedFilename.c_str());
 	if ( file.is_open () )
 	{
 		// add each line in the file to the list
@@ -122,7 +122,7 @@ bool LLUrlWhiteList::save ()
 	}
 
 	// open a file for writing
-	llofstream file(resolvedFilename.c_str());
+	std::ofstream file(resolvedFilename.c_str());
 	if ( file.is_open () )
 	{
 		// for each entry we have
diff --git a/indra/newview/llviewermedia.cpp b/indra/newview/llviewermedia.cpp
index 509227c683..69b1ee93dc 100755
--- a/indra/newview/llviewermedia.cpp
+++ b/indra/newview/llviewermedia.cpp
@@ -1278,7 +1278,7 @@ void LLViewerMedia::loadCookieFile()
 	}
 	
 	// open the file for reading
-	llifstream file(resolved_filename.c_str());
+	std::ifstream file(resolved_filename.c_str());
 	if (!file.is_open())
 	{
 		LL_WARNS() << "can't load plugin cookies from file \"" << PLUGIN_COOKIE_FILE_NAME << "\"" << LL_ENDL;
@@ -1320,7 +1320,7 @@ void LLViewerMedia::saveCookieFile()
 	}
 
 	// open a file for writing
-	llofstream file(resolved_filename.c_str());
+	std::ofstream file(resolved_filename.c_str());
 	if (!file.is_open())
 	{
 		LL_WARNS() << "can't open plugin cookie file \"" << PLUGIN_COOKIE_FILE_NAME << "\" for writing" << LL_ENDL;
diff --git a/indra/newview/llviewernetwork.cpp b/indra/newview/llviewernetwork.cpp
index faa58d423f..0a283efae2 100755
--- a/indra/newview/llviewernetwork.cpp
+++ b/indra/newview/llviewernetwork.cpp
@@ -135,7 +135,7 @@ void LLGridManager::initialize(const std::string& grid_file)
 				  "Aditi");
 
 	LLSD other_grids;
-	llifstream llsd_xml;
+	std::ifstream llsd_xml;
 	if (!grid_file.empty())
 	{
 		LL_INFOS("GridManager")<<"Grid configuration file '"<<grid_file<<"'"<<LL_ENDL;
diff --git a/indra/newview/llviewerobject.cpp b/indra/newview/llviewerobject.cpp
index db49fcb0d8..a2d9e936d5 100755
--- a/indra/newview/llviewerobject.cpp
+++ b/indra/newview/llviewerobject.cpp
@@ -3001,7 +3001,7 @@ void LLViewerObject::processTaskInvFile(void** user_data, S32 error_code, LLExtS
 BOOL LLViewerObject::loadTaskInvFile(const std::string& filename)
 {
 	std::string filename_and_local_path = gDirUtilp->getExpandedFilename(LL_PATH_CACHE, filename);
-	llifstream ifs(filename_and_local_path.c_str());
+	std::ifstream ifs(filename_and_local_path.c_str());
 	if(ifs.good())
 	{
 		char buffer[MAX_STRING];	/* Flawfinder: ignore */
diff --git a/indra/newview/llviewertexturelist.cpp b/indra/newview/llviewertexturelist.cpp
index 378bb18ecd..384589607c 100755
--- a/indra/newview/llviewertexturelist.cpp
+++ b/indra/newview/llviewertexturelist.cpp
@@ -179,7 +179,7 @@ void LLViewerTextureList::doPrefetchImages()
 	// Pre-fetch textures from last logout
 	LLSD imagelist;
 	std::string filename = get_texture_list_name();
-	llifstream file;
+	std::ifstream file;
 	file.open(filename.c_str());
 	if (file.is_open())
 	{
@@ -273,7 +273,7 @@ void LLViewerTextureList::shutdown()
 	if (count > 0 && !gDirUtilp->getExpandedFilename(LL_PATH_PER_SL_ACCOUNT, "").empty())
 	{
 		std::string filename = get_texture_list_name();
-		llofstream file;
+		std::ofstream file;
 		file.open(filename.c_str());
         LL_DEBUGS() << "saving " << imagelist.size() << " image list entries" << LL_ENDL;
 		LLSDSerialize::toPrettyXML(imagelist, file);
diff --git a/indra/newview/llvoiceclient.cpp b/indra/newview/llvoiceclient.cpp
index e24884fe81..351494aae7 100755
--- a/indra/newview/llvoiceclient.cpp
+++ b/indra/newview/llvoiceclient.cpp
@@ -1023,7 +1023,7 @@ void LLSpeakerVolumeStorage::load()
 	LL_INFOS("Voice") << "Loading stored speaker volumes from: " << filename << LL_ENDL;
 
 	LLSD settings_llsd;
-	llifstream file;
+	std::ifstream file;
 	file.open(filename.c_str());
 	if (file.is_open())
 	{
@@ -1066,7 +1066,7 @@ void LLSpeakerVolumeStorage::save()
 			settings_llsd[iter->first.asString()] = volume;
 		}
 
-		llofstream file;
+		std::ofstream file;
 		file.open(filename.c_str());
 		LLSDSerialize::toPrettyXML(settings_llsd, file);
 	}
diff --git a/indra/newview/llwaterparammanager.cpp b/indra/newview/llwaterparammanager.cpp
index 374792193c..e0b89e3eb9 100755
--- a/indra/newview/llwaterparammanager.cpp
+++ b/indra/newview/llwaterparammanager.cpp
@@ -110,7 +110,7 @@ void LLWaterParamManager::loadPresetsFromDir(const std::string& dir)
 
 bool LLWaterParamManager::loadPreset(const std::string& path)
 {
-	llifstream xml_file;
+	std::ifstream xml_file;
 	std::string name(gDirUtilp->getBaseFileName(LLURI::unescape(path), /*strip_exten = */ true));
 
 	xml_file.open(path.c_str());
@@ -150,7 +150,7 @@ void LLWaterParamManager::savePreset(const std::string & name)
 	paramsData = mParamList[name].getAll();
 
 	// write to file
-	llofstream presetsXML(pathName.c_str());
+	std::ofstream presetsXML(pathName.c_str());
 	LLPointer<LLSDFormatter> formatter = new LLSDXMLFormatter();
 	formatter->format(paramsData, presetsXML, LLSDFormatter::OPTIONS_PRETTY);
 	presetsXML.close();
diff --git a/indra/newview/llwearablelist.cpp b/indra/newview/llwearablelist.cpp
index b61fbbd073..b5d22b42a8 100755
--- a/indra/newview/llwearablelist.cpp
+++ b/indra/newview/llwearablelist.cpp
@@ -113,7 +113,7 @@ void LLWearableList::processGetAssetReply( const char* filename, const LLAssetID
 	else if (status >= 0)
 	{
 		// read the file
-		llifstream ifs(filename, llifstream::binary);
+		std::ifstream ifs(filename, std::ifstream::binary);
 		if( !ifs.is_open() )
 		{
 			LL_WARNS("Wearable") << "Bad Wearable Asset: unable to open file: '" << filename << "'" << LL_ENDL;
diff --git a/indra/newview/llwldaycycle.cpp b/indra/newview/llwldaycycle.cpp
index 88079c5d26..3f5579d0fb 100755
--- a/indra/newview/llwldaycycle.cpp
+++ b/indra/newview/llwldaycycle.cpp
@@ -109,7 +109,7 @@ LLSD LLWLDayCycle::loadDayCycleFromPath(const std::string& file_path)
 {
 	LL_INFOS("Windlight") << "Loading DayCycle settings from " << file_path << LL_ENDL;
 	
-	llifstream day_cycle_xml(file_path.c_str());
+	std::ifstream day_cycle_xml(file_path.c_str());
 	if (day_cycle_xml.is_open())
 	{
 		// load and parse it
@@ -137,7 +137,7 @@ void LLWLDayCycle::save(const std::string& file_path)
 {
 	LLSD day_data = asLLSD();
 
-	llofstream day_cycle_xml(file_path.c_str());
+	std::ofstream day_cycle_xml(file_path.c_str());
 	LLPointer<LLSDFormatter> formatter = new LLSDXMLFormatter();
 	formatter->format(day_data, day_cycle_xml, LLSDFormatter::OPTIONS_PRETTY);
 	day_cycle_xml.close();
diff --git a/indra/newview/llwlparammanager.cpp b/indra/newview/llwlparammanager.cpp
index 2b6d88efef..ed0b733ade 100755
--- a/indra/newview/llwlparammanager.cpp
+++ b/indra/newview/llwlparammanager.cpp
@@ -293,7 +293,7 @@ void LLWLParamManager::loadPresetsFromDir(const std::string& dir)
 
 bool LLWLParamManager::loadPreset(const std::string& path)
 {
-	llifstream xml_file;
+	std::ifstream xml_file;
 	std::string name(gDirUtilp->getBaseFileName(LLURI::unescape(path), /*strip_exten = */ true));
 
 	xml_file.open(path.c_str());
@@ -334,7 +334,7 @@ void LLWLParamManager::savePreset(LLWLParamKey key)
 	paramsData = mParamList[key].getAll();
 
 	// write to file
-	llofstream presetsXML(pathName.c_str());
+	std::ofstream presetsXML(pathName.c_str());
 	LLPointer<LLSDFormatter> formatter = new LLSDXMLFormatter();
 	formatter->format(paramsData, presetsXML, LLSDFormatter::OPTIONS_PRETTY);
 	presetsXML.close();
diff --git a/indra/newview/tests/llsechandler_basic_test.cpp b/indra/newview/tests/llsechandler_basic_test.cpp
index 2a8dc15346..a2f91fa55d 100755
--- a/indra/newview/tests/llsechandler_basic_test.cpp
+++ b/indra/newview/tests/llsechandler_basic_test.cpp
@@ -585,7 +585,7 @@ namespace tut
 		LLMachineID::getUniqueID(unique_id, sizeof(unique_id));
 		LLXORCipher cipher2(unique_id, sizeof(unique_id));
 		cipher2.encrypt((U8*)&decoded_password[0], length);
-		llofstream password_file("test_password.dat", std::ofstream::binary);
+		std::ofstream password_file("test_password.dat", std::ofstream::binary);
 		password_file.write(&decoded_password[0], length); 
 		password_file.close();
 		
@@ -719,7 +719,7 @@ namespace tut
 		test_store=NULL;
 		
 		// instantiate a cert store from a file
-		llofstream certstorefile("mycertstore.pem", std::ios::out);
+		std::ofstream certstorefile("mycertstore.pem", std::ios::out);
 		certstorefile << mPemChildCert << std::endl << mPemTestCert << std::endl;
 		certstorefile.close();
 		// validate loaded certs
diff --git a/indra/newview/tests/llslurl_test.cpp b/indra/newview/tests/llslurl_test.cpp
index 2bc0d5a086..272c2d4eb7 100755
--- a/indra/newview/tests/llslurl_test.cpp
+++ b/indra/newview/tests/llslurl_test.cpp
@@ -152,7 +152,7 @@ namespace tut
 	template<> template<>
 	void slurlTestObject::test<1>()
 	{
-		llofstream gridfile(TEST_FILENAME);
+		std::ofstream gridfile(TEST_FILENAME);
 		gridfile << gSampleGridFile;
 		gridfile.close();
 
@@ -269,7 +269,7 @@ namespace tut
 	template<> template<>
 	void slurlTestObject::test<2>()
 	{
-		llofstream gridfile(TEST_FILENAME);
+		std::ofstream gridfile(TEST_FILENAME);
 		gridfile << gSampleGridFile;
 		gridfile.close();
 
@@ -302,7 +302,7 @@ namespace tut
 	template<> template<>
 	void slurlTestObject::test<3>()
 	{
-		llofstream gridfile(TEST_FILENAME);
+		std::ofstream gridfile(TEST_FILENAME);
 		gridfile << gSampleGridFile;
 		gridfile.close();
 
diff --git a/indra/newview/tests/llviewernetwork_test.cpp b/indra/newview/tests/llviewernetwork_test.cpp
index 0eb0ab6500..2b0330a5b3 100755
--- a/indra/newview/tests/llviewernetwork_test.cpp
+++ b/indra/newview/tests/llviewernetwork_test.cpp
@@ -245,7 +245,7 @@ namespace tut
 	template<> template<>
 	void viewerNetworkTestObject::test<2>()
 	{
-		llofstream gridfile(TEST_FILENAME);
+		std::ofstream gridfile(TEST_FILENAME);
 		gridfile << gSampleGridFile;
 		gridfile.close();
 
@@ -376,7 +376,7 @@ namespace tut
 	void viewerNetworkTestObject::test<7>()
 	{
 		// adding a grid with simply a name will populate the values.
-		llofstream gridfile(TEST_FILENAME);
+		std::ofstream gridfile(TEST_FILENAME);
 		gridfile << gSampleGridFile;
 		gridfile.close();
 
diff --git a/indra/test/llmessageconfig_tut.cpp b/indra/test/llmessageconfig_tut.cpp
index df2151b1b1..6de5cf894d 100755
--- a/indra/test/llmessageconfig_tut.cpp
+++ b/indra/test/llmessageconfig_tut.cpp
@@ -68,7 +68,7 @@ namespace tut
 
 		void writeConfigFile(const LLSD& config)
 		{
-			llofstream file((mTestConfigDir + "/message.xml").c_str());
+			std::ofstream file((mTestConfigDir + "/message.xml").c_str());
 			if (file.is_open())
 			{
 				LLSDSerialize::toPrettyXML(config, file);
diff --git a/indra/test/message_tut.cpp b/indra/test/message_tut.cpp
index aa23699de0..9a537919c9 100755
--- a/indra/test/message_tut.cpp
+++ b/indra/test/message_tut.cpp
@@ -120,7 +120,7 @@ namespace tut
 		void writeConfigFile(const LLSD& config)
 		{
 			std::string ostr(mTestConfigDir + mSep + "message.xml");
-			llofstream file(ostr.c_str());
+			std::ofstream file(ostr.c_str());
 			if (file.is_open())
 			{
 				LLSDSerialize::toPrettyXML(config, file);
diff --git a/indra/viewer_components/updater/CMakeLists.txt b/indra/viewer_components/updater/CMakeLists.txt
index 61fd4220e0..cbf8066dee 100755
--- a/indra/viewer_components/updater/CMakeLists.txt
+++ b/indra/viewer_components/updater/CMakeLists.txt
@@ -70,12 +70,12 @@ if(LL_TESTS)
       )
 
 # *NOTE:Mani - I was trying to use the preprocessor seam to mock out
-#              llifstream (and other) llcommon classes. I didn't work
+#              std::ifstream (and other) llcommon classes. I didn't work
 #              because of the windows declspec(dllimport)attribute.
 #set_source_files_properties(
 #    llupdaterservice.cpp
 #    PROPERTIES
-#      LL_TEST_ADDITIONAL_CFLAGS "-Dllifstream=llus_mock_llifstream"
+#      LL_TEST_ADDITIONAL_CFLAGS "-Dstd::ifstream=llus_mock_std::ifstream"
 #    )
 
   LL_ADD_PROJECT_UNIT_TESTS(llupdaterservice "${llupdater_service_TEST_SOURCE_FILES}")
diff --git a/indra/viewer_components/updater/llupdatedownloader.cpp b/indra/viewer_components/updater/llupdatedownloader.cpp
index f868e5cc2c..fc25582100 100755
--- a/indra/viewer_components/updater/llupdatedownloader.cpp
+++ b/indra/viewer_components/updater/llupdatedownloader.cpp
@@ -67,7 +67,7 @@ private:
 	LLUpdateDownloader::Client & mClient;
 	CURL * mCurl;
 	LLSD mDownloadData;
-	llofstream mDownloadStream;
+	std::ofstream mDownloadStream;
 	unsigned char mDownloadPercent;
 	std::string mDownloadRecordPath;
 	curl_slist * mHeaderList;
@@ -270,7 +270,7 @@ void LLUpdateDownloader::Implementation::resume(void)
 	}
 
 	mDownloadRecordPath = downloadMarkerPath();
-	llifstream dataStream(mDownloadRecordPath.c_str());
+	std::ifstream dataStream(mDownloadRecordPath.c_str());
 	if(!dataStream)
 	{
 		mClient.downloadError("no download marker");
@@ -362,7 +362,7 @@ size_t LLUpdateDownloader::Implementation::onHeader(void * buffer, size_t size)
 			LL_INFOS("UpdaterService") << "download size is " << size << LL_ENDL;
 
 			mDownloadData["size"] = LLSD(LLSD::Integer(size));
-			llofstream odataStream(mDownloadRecordPath.c_str());
+			std::ofstream odataStream(mDownloadRecordPath.c_str());
 			LLSDSerialize::toPrettyXML(mDownloadData, odataStream);
 		} catch (std::exception const & e) {
 			LL_WARNS("UpdaterService") << "unable to read content length ("
@@ -534,7 +534,7 @@ void LLUpdateDownloader::Implementation::startDownloading(LLURI const & uri, std
 		<< " from " << uri.asString() << LL_ENDL;
 	LL_INFOS("UpdaterService") << "hash of file is " << hash << LL_ENDL;
 
-	llofstream dataStream(mDownloadRecordPath.c_str());
+	std::ofstream dataStream(mDownloadRecordPath.c_str());
 	LLSDSerialize::toPrettyXML(mDownloadData, dataStream);
 
 	mDownloadStream.open(filePath.c_str(), std::ios_base::out | std::ios_base::binary);
@@ -570,7 +570,7 @@ bool LLUpdateDownloader::Implementation::validateOrRemove(const std::string& fil
 
 bool LLUpdateDownloader::Implementation::validateDownload(const std::string& filePath)
 {
-	llifstream fileStream(filePath.c_str(), std::ios_base::in | std::ios_base::binary);
+	std::ifstream fileStream(filePath.c_str(), std::ios_base::in | std::ios_base::binary);
 	if(!fileStream)
 	{
 		LL_INFOS("UpdaterService") << "can't open " << filePath << ", invalid" << LL_ENDL;
diff --git a/indra/viewer_components/updater/llupdaterservice.cpp b/indra/viewer_components/updater/llupdaterservice.cpp
index c152493a51..8359317983 100755
--- a/indra/viewer_components/updater/llupdaterservice.cpp
+++ b/indra/viewer_components/updater/llupdaterservice.cpp
@@ -285,7 +285,7 @@ bool LLUpdaterServiceImpl::checkForInstall(bool launchInstaller)
 {
 	bool foundInstall = false; // return true if install is found.
 
-	llifstream update_marker(update_marker_path().c_str(), 
+	std::ifstream update_marker(update_marker_path().c_str(), 
 							 std::ios::in | std::ios::binary);
 
 	if(update_marker.is_open())
@@ -365,7 +365,7 @@ bool LLUpdaterServiceImpl::checkForResume()
 	std::string download_marker_path = mUpdateDownloader.downloadMarkerPath();
 	if(LLFile::isfile(download_marker_path))
 	{
-		llifstream download_marker_stream(download_marker_path.c_str(), 
+		std::ifstream download_marker_stream(download_marker_path.c_str(), 
 								 std::ios::in | std::ios::binary);
 		if(download_marker_stream.is_open())
 		{
@@ -460,7 +460,7 @@ void LLUpdaterServiceImpl::downloadComplete(LLSD const & data)
 
 	// Save out the download data to the SecondLifeUpdateReady
 	// marker file. 
-	llofstream update_marker(update_marker_path().c_str());
+	std::ofstream update_marker(update_marker_path().c_str());
 	LLSDSerialize::toPrettyXML(data, update_marker);
 	
 	LLSD event;
@@ -558,7 +558,7 @@ bool LLUpdaterServiceImpl::onMainLoop(LLSD const & event)
 			LL_DEBUGS("UpdaterService") << "found marker " << ll_install_failed_marker_path() << LL_ENDL;
 			int requiredValue = 0; 
 			{
-				llifstream stream(ll_install_failed_marker_path().c_str());
+				std::ifstream stream(ll_install_failed_marker_path().c_str());
 				stream >> requiredValue;
 				if(stream.fail())
 				{