declare some const where missing in c++ header file

diff --git a/FlexLexer.h b/FlexLexer.h
index 892e9e6082a848ee20b449cc59d7d6f032f2da38..d16f367f8dd95fa1fe6bad335bf301ceb6cb9807 100644 (file)
--- a/FlexLexer.h
+++ b/FlexLexer.h
@@ -62,8 +62,8 @@ class FlexLexer {
 public:
        virtual ~FlexLexer()    { }
 
-       const char* YYText()    { return yytext; }
-       int YYLeng()            { return yyleng; }
+       const char* YYText() const      { return yytext; }
+       int YYLeng()    const   { return yyleng; }
 
        virtual void
                yy_switch_to_buffer( struct yy_buffer_state* new_buffer ) = 0;