1 files changed, 1 insertions, 1 deletions

diff --git a/include/opkele/expat.h b/include/opkele/expat.h
index 21be003..c154785 100644
--- a/include/opkele/expat.h
+++ b/include/opkele/expat.h
@@ -1,69 +1,69 @@
 #ifndef __OPKELE_EXPAT_H
 #define __OPKELE_EXPAT_H
 
 #include <cassert>
 #include <expat.h>
 
 namespace opkele {
 
     namespace util {
 
         class expat_t {
             public:
                 XML_Parser _x;
 
                 expat_t() : _x(0) { }
                 expat_t(XML_Parser x) : _x(x) { }
                 virtual ~expat_t() throw();
 
                 expat_t& operator=(XML_Parser x);
 
-                operator const XML_Parser(void) const { return _x; }
+                operator XML_Parser(void) const { return _x; }
                 operator XML_Parser(void) { return _x; }
 
                 inline bool parse(const char *s,int len,bool final=false) {
                     assert(_x);
                     return XML_Parse(_x,s,len,final);
                 }
 
                 virtual int unknown_encoding(const XML_Char * /* n */,XML_Encoding * /* i */) { return XML_STATUS_ERROR; }
                 void set_unknown_encoding_handler();
 
                 virtual void start_element(const XML_Char * /* n */,const XML_Char ** /* a */) { }
                 virtual void end_element(const XML_Char * /* n */) { }
                 void set_element_handler();
 
                 virtual void character_data(const XML_Char * /* s */,int /* l */) { }
                 void set_character_data_handler();
 
                 virtual void processing_instruction(const XML_Char * /* t */,const XML_Char * /* d */) { }
                 void set_processing_instruction_handler();
 
                 virtual void comment(const XML_Char * /* d */) { }
                 void set_comment_handler();
 
                 virtual void start_cdata_section() { }
                 virtual void end_cdata_section() { }
                 void set_cdata_section_handler();
 
                 virtual void default_handler(const XML_Char * /* s */,int /* l */) { }
                 void set_default_handler();
                 void set_default_handler_expand();
 
                 virtual void start_namespace_decl(const XML_Char * /* p */,const XML_Char * /* u */) { }
                 virtual void end_namespace_decl(const XML_Char * /* p */) { }
                 void set_namespace_decl_handler();
 
                 inline enum XML_Error get_error_code() {
                     assert(_x); return XML_GetErrorCode(_x); }
                 static inline const XML_LChar *error_string(XML_Error c) {
                     return XML_ErrorString(c); }
 
                 inline long get_current_byte_index() {
                     assert(_x); return XML_GetCurrentByteIndex(_x); }
                 inline int get_current_line_number() {
                     assert(_x); return XML_GetCurrentLineNumber(_x); }
                 inline int get_current_column_number() {
                     assert(_x); return XML_GetCurrentColumnNumber(_x); }
 
                 inline void set_user_data() {