members can be declared 'const'

Author: kosloot

include/ucto/tokenize.h

@@ -99,8 +99,8 @@ namespace Tokenizer {
 	   const UnicodeString&,
 	   const std::string& = "" );
     std::string lang_code;                // ISO 639-3 language code
-    std::string texttostring();
-    std::string typetostring();
+    std::string texttostring() const;
+    std::string typetostring() const ;
   };
 
   class TokenizerClass{

src/tokenize.cxx

@@ -167,8 +167,8 @@ namespace Tokenizer {
   }
 
 
-  std::string Token::texttostring() { return TiCC::UnicodeToUTF8(us); }
-  std::string Token::typetostring() { return TiCC::UnicodeToUTF8(type); }
+  std::string Token::texttostring() const { return TiCC::UnicodeToUTF8(us); }
+  std::string Token::typetostring() const { return TiCC::UnicodeToUTF8(type); }
 
   ostream& operator<< (std::ostream& os, const Token& t ){
     os << t.type << " : " << t.role  << ": '" << t.us << "' (" << t.lang_code << ")";