fixed some warnings on Windows

git-svn-id: http://find-object.googlecode.com/svn/trunk/find_object@425 620bd6b2-0a58-f614-fd9a-1bd335dccda9

src/utilite/UConversion.cpp

@@ -155,7 +155,7 @@ std::string uBytes2Hex(const char * bytes, unsigned int bytesLen)
 
 std::vector<char> uHex2Bytes(const std::string & hex)
 {
-	return uHex2Bytes(&hex[0], hex.length());
+	return uHex2Bytes(&hex[0], (int)hex.length());
 }
 
 std::vector<char> uHex2Bytes(const char * hex, int hexLen)
@@ -270,7 +270,12 @@ std::string uFormatv (const char *fmt, va_list args)
 #endif
 
         // Try to vsnprintf into our buffer.
-    	int needed = vsnprintf (buf, size, fmt, argsTmp);
+#ifdef _MSC_VER
+		int needed = (int)vsnprintf_s(buf, size, _TRUNCATE, fmt, argsTmp);
+#else
+		int needed = (int)vsnprintf(buf, size, fmt, argsTmp);
+#endif
+
     	va_end(argsTmp);
         // NB. C99 (which modern Linux and OS X follow) says vsnprintf
         // failure returns the length it would have needed.  But older

src/utilite/UDirectory.cpp

@@ -262,7 +262,7 @@ bool UDirectory::exists(const std::string & dirPath)
 std::string UDirectory::getDir(const std::string & filePath)
 {
 	std::string dir = filePath;
-	int i=dir.size()-1;
+	int i=(int)dir.size()-1;
 	for(; i>=0; --i)
 	{
 		if(dir[i] == '/' || dir[i] == '\\')

src/utilite/UFile.cpp

@@ -65,14 +65,14 @@ int UFile::erase(const std::string &filePath)
 int UFile::rename(const std::string &oldFilePath,
                      const std::string &newFilePath)
 {
-    return rename(oldFilePath.c_str(), newFilePath.c_str());
+    return ::rename(oldFilePath.c_str(), newFilePath.c_str());
 }
 
 std::string UFile::getName(const std::string & filePath)
 {
 	std::string fullPath = filePath;
 	std::string name;
-	for(int i=fullPath.size()-1; i>=0; --i)
+	for(int i=(int)fullPath.size()-1; i>=0; --i)
 	{
 		if(fullPath[i] == '/' || fullPath[i] == '\\')
 		{