Fixed compilation warnings on BCC

git-svn-id: http://pugixml.googlecode.com/svn/trunk@128 99668b35-9821-0410-8761-19e4c4f06640

src/pugixml.cpp

@@ -1841,7 +1841,7 @@ namespace pugi
 	bool xml_attribute::as_bool() const
 	{
 		// only look at first char
-		char first = (_attr && _attr->value) ? *_attr->value : 0;
+		char first = (_attr && _attr->value) ? *_attr->value : '\0';
 
 		// 1*, t* (true), T* (True), y* (yes), Y* (YES)
 		return (first == '1' || first == 't' || first == 'T' || first == 'y' || first == 'Y');

src/pugixpath.cpp

@@ -343,7 +343,7 @@ namespace
 			}
 		}
 		
-		return buf;
+		return std::string(buf);
 	}
 	
 	double convert_string_to_number(const char* string)